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
,
657 ctx
->tls13_ciphersuites
,
659 &(ctx
->cipher_list_by_id
),
660 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
661 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
662 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
668 SSL
*SSL_new(SSL_CTX
*ctx
)
673 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
676 if (ctx
->method
== NULL
) {
677 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
681 s
= OPENSSL_zalloc(sizeof(*s
));
686 s
->lock
= CRYPTO_THREAD_lock_new();
687 if (s
->lock
== NULL
) {
694 * If not using the standard RAND (say for fuzzing), then don't use a
697 if (RAND_get_rand_method() == RAND_OpenSSL()) {
699 RAND_DRBG_new(RAND_DRBG_NID
, 0, RAND_DRBG_get0_public());
701 || RAND_DRBG_instantiate(s
->drbg
,
702 (const unsigned char *) SSL_version_str
,
703 sizeof(SSL_version_str
) - 1) == 0)
707 RECORD_LAYER_init(&s
->rlayer
, s
);
709 s
->options
= ctx
->options
;
710 s
->dane
.flags
= ctx
->dane
.flags
;
711 s
->min_proto_version
= ctx
->min_proto_version
;
712 s
->max_proto_version
= ctx
->max_proto_version
;
714 s
->max_cert_list
= ctx
->max_cert_list
;
715 s
->max_early_data
= ctx
->max_early_data
;
717 /* Shallow copy of the ciphersuites stack */
718 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
719 if (s
->tls13_ciphersuites
== NULL
)
723 * Earlier library versions used to copy the pointer to the CERT, not
724 * its contents; only when setting new parameters for the per-SSL
725 * copy, ssl_cert_new would be called (and the direct reference to
726 * the per-SSL_CTX settings would be lost, but those still were
727 * indirectly accessed for various purposes, and for that reason they
728 * used to be known as s->ctx->default_cert). Now we don't look at the
729 * SSL_CTX's CERT after having duplicated it once.
731 s
->cert
= ssl_cert_dup(ctx
->cert
);
735 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
736 s
->msg_callback
= ctx
->msg_callback
;
737 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
738 s
->verify_mode
= ctx
->verify_mode
;
739 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
740 s
->record_padding_cb
= ctx
->record_padding_cb
;
741 s
->record_padding_arg
= ctx
->record_padding_arg
;
742 s
->block_padding
= ctx
->block_padding
;
743 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
744 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
746 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
747 s
->verify_callback
= ctx
->default_verify_callback
;
748 s
->generate_session_id
= ctx
->generate_session_id
;
750 s
->param
= X509_VERIFY_PARAM_new();
751 if (s
->param
== NULL
)
753 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
754 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
756 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
757 s
->max_send_fragment
= ctx
->max_send_fragment
;
758 s
->split_send_fragment
= ctx
->split_send_fragment
;
759 s
->max_pipelines
= ctx
->max_pipelines
;
760 if (s
->max_pipelines
> 1)
761 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
762 if (ctx
->default_read_buf_len
> 0)
763 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
768 s
->ext
.debug_arg
= NULL
;
769 s
->ext
.ticket_expected
= 0;
770 s
->ext
.status_type
= ctx
->ext
.status_type
;
771 s
->ext
.status_expected
= 0;
772 s
->ext
.ocsp
.ids
= NULL
;
773 s
->ext
.ocsp
.exts
= NULL
;
774 s
->ext
.ocsp
.resp
= NULL
;
775 s
->ext
.ocsp
.resp_len
= 0;
777 s
->session_ctx
= ctx
;
778 #ifndef OPENSSL_NO_EC
779 if (ctx
->ext
.ecpointformats
) {
780 s
->ext
.ecpointformats
=
781 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
782 ctx
->ext
.ecpointformats_len
);
783 if (!s
->ext
.ecpointformats
)
785 s
->ext
.ecpointformats_len
=
786 ctx
->ext
.ecpointformats_len
;
788 if (ctx
->ext
.supportedgroups
) {
789 s
->ext
.supportedgroups
=
790 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
791 ctx
->ext
.supportedgroups_len
792 * sizeof(*ctx
->ext
.supportedgroups
));
793 if (!s
->ext
.supportedgroups
)
795 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
798 #ifndef OPENSSL_NO_NEXTPROTONEG
802 if (s
->ctx
->ext
.alpn
) {
803 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
804 if (s
->ext
.alpn
== NULL
)
806 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
807 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
810 s
->verified_chain
= NULL
;
811 s
->verify_result
= X509_V_OK
;
813 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
814 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
816 s
->method
= ctx
->method
;
818 s
->key_update
= SSL_KEY_UPDATE_NONE
;
820 if (!s
->method
->ssl_new(s
))
823 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
828 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
831 #ifndef OPENSSL_NO_PSK
832 s
->psk_client_callback
= ctx
->psk_client_callback
;
833 s
->psk_server_callback
= ctx
->psk_server_callback
;
835 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
836 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
840 #ifndef OPENSSL_NO_CT
841 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
842 ctx
->ct_validation_callback_arg
))
849 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
853 int SSL_is_dtls(const SSL
*s
)
855 return SSL_IS_DTLS(s
) ? 1 : 0;
858 int SSL_up_ref(SSL
*s
)
862 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
865 REF_PRINT_COUNT("SSL", s
);
866 REF_ASSERT_ISNT(i
< 2);
867 return ((i
> 1) ? 1 : 0);
870 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
871 unsigned int sid_ctx_len
)
873 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
874 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
875 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
878 ctx
->sid_ctx_length
= sid_ctx_len
;
879 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
884 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
885 unsigned int sid_ctx_len
)
887 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
888 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
889 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
892 ssl
->sid_ctx_length
= sid_ctx_len
;
893 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
898 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
900 CRYPTO_THREAD_write_lock(ctx
->lock
);
901 ctx
->generate_session_id
= cb
;
902 CRYPTO_THREAD_unlock(ctx
->lock
);
906 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
908 CRYPTO_THREAD_write_lock(ssl
->lock
);
909 ssl
->generate_session_id
= cb
;
910 CRYPTO_THREAD_unlock(ssl
->lock
);
914 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
918 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
919 * we can "construct" a session to give us the desired check - i.e. to
920 * find if there's a session in the hash table that would conflict with
921 * any new session built out of this id/id_len and the ssl_version in use
926 if (id_len
> sizeof(r
.session_id
))
929 r
.ssl_version
= ssl
->version
;
930 r
.session_id_length
= id_len
;
931 memcpy(r
.session_id
, id
, id_len
);
933 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
934 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
935 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
939 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
941 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
944 int SSL_set_purpose(SSL
*s
, int purpose
)
946 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
949 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
951 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
954 int SSL_set_trust(SSL
*s
, int trust
)
956 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
959 int SSL_set1_host(SSL
*s
, const char *hostname
)
961 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
964 int SSL_add1_host(SSL
*s
, const char *hostname
)
966 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
969 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
971 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
974 const char *SSL_get0_peername(SSL
*s
)
976 return X509_VERIFY_PARAM_get0_peername(s
->param
);
979 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
981 return dane_ctx_enable(&ctx
->dane
);
984 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
986 unsigned long orig
= ctx
->dane
.flags
;
988 ctx
->dane
.flags
|= flags
;
992 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
994 unsigned long orig
= ctx
->dane
.flags
;
996 ctx
->dane
.flags
&= ~flags
;
1000 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1002 SSL_DANE
*dane
= &s
->dane
;
1004 if (s
->ctx
->dane
.mdmax
== 0) {
1005 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1008 if (dane
->trecs
!= NULL
) {
1009 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1014 * Default SNI name. This rejects empty names, while set1_host below
1015 * accepts them and disables host name checks. To avoid side-effects with
1016 * invalid input, set the SNI name first.
1018 if (s
->ext
.hostname
== NULL
) {
1019 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1020 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1025 /* Primary RFC6125 reference identifier */
1026 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1027 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1033 dane
->dctx
= &s
->ctx
->dane
;
1034 dane
->trecs
= sk_danetls_record_new_null();
1036 if (dane
->trecs
== NULL
) {
1037 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1043 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1045 unsigned long orig
= ssl
->dane
.flags
;
1047 ssl
->dane
.flags
|= flags
;
1051 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1053 unsigned long orig
= ssl
->dane
.flags
;
1055 ssl
->dane
.flags
&= ~flags
;
1059 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1061 SSL_DANE
*dane
= &s
->dane
;
1063 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1067 *mcert
= dane
->mcert
;
1069 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1074 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1075 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1077 SSL_DANE
*dane
= &s
->dane
;
1079 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1083 *usage
= dane
->mtlsa
->usage
;
1085 *selector
= dane
->mtlsa
->selector
;
1087 *mtype
= dane
->mtlsa
->mtype
;
1089 *data
= dane
->mtlsa
->data
;
1091 *dlen
= dane
->mtlsa
->dlen
;
1096 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1101 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1102 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1104 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1107 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1110 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1113 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1115 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1118 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1120 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1123 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1128 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1133 void SSL_certs_clear(SSL
*s
)
1135 ssl_cert_clear_certs(s
->cert
);
1138 void SSL_free(SSL
*s
)
1145 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1146 REF_PRINT_COUNT("SSL", s
);
1149 REF_ASSERT_ISNT(i
< 0);
1151 X509_VERIFY_PARAM_free(s
->param
);
1152 dane_final(&s
->dane
);
1153 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1155 /* Ignore return value */
1156 ssl_free_wbio_buffer(s
);
1158 BIO_free_all(s
->wbio
);
1159 BIO_free_all(s
->rbio
);
1161 BUF_MEM_free(s
->init_buf
);
1163 /* add extra stuff */
1164 sk_SSL_CIPHER_free(s
->cipher_list
);
1165 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1166 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1168 /* Make the next call work :-) */
1169 if (s
->session
!= NULL
) {
1170 ssl_clear_bad_session(s
);
1171 SSL_SESSION_free(s
->session
);
1173 SSL_SESSION_free(s
->psksession
);
1174 OPENSSL_free(s
->psksession_id
);
1178 ssl_cert_free(s
->cert
);
1179 /* Free up if allocated */
1181 OPENSSL_free(s
->ext
.hostname
);
1182 SSL_CTX_free(s
->session_ctx
);
1183 #ifndef OPENSSL_NO_EC
1184 OPENSSL_free(s
->ext
.ecpointformats
);
1185 OPENSSL_free(s
->ext
.supportedgroups
);
1186 #endif /* OPENSSL_NO_EC */
1187 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1188 #ifndef OPENSSL_NO_OCSP
1189 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1191 #ifndef OPENSSL_NO_CT
1192 SCT_LIST_free(s
->scts
);
1193 OPENSSL_free(s
->ext
.scts
);
1195 OPENSSL_free(s
->ext
.ocsp
.resp
);
1196 OPENSSL_free(s
->ext
.alpn
);
1197 OPENSSL_free(s
->ext
.tls13_cookie
);
1198 OPENSSL_free(s
->clienthello
);
1199 OPENSSL_free(s
->pha_context
);
1200 EVP_MD_CTX_free(s
->pha_dgst
);
1202 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1204 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1206 if (s
->method
!= NULL
)
1207 s
->method
->ssl_free(s
);
1209 RECORD_LAYER_release(&s
->rlayer
);
1211 SSL_CTX_free(s
->ctx
);
1213 ASYNC_WAIT_CTX_free(s
->waitctx
);
1215 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1216 OPENSSL_free(s
->ext
.npn
);
1219 #ifndef OPENSSL_NO_SRTP
1220 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1223 RAND_DRBG_free(s
->drbg
);
1224 CRYPTO_THREAD_lock_free(s
->lock
);
1229 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1231 BIO_free_all(s
->rbio
);
1235 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1238 * If the output buffering BIO is still in place, remove it
1240 if (s
->bbio
!= NULL
)
1241 s
->wbio
= BIO_pop(s
->wbio
);
1243 BIO_free_all(s
->wbio
);
1246 /* Re-attach |bbio| to the new |wbio|. */
1247 if (s
->bbio
!= NULL
)
1248 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1251 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1254 * For historical reasons, this function has many different cases in
1255 * ownership handling.
1258 /* If nothing has changed, do nothing */
1259 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1263 * If the two arguments are equal then one fewer reference is granted by the
1264 * caller than we want to take
1266 if (rbio
!= NULL
&& rbio
== wbio
)
1270 * If only the wbio is changed only adopt one reference.
1272 if (rbio
== SSL_get_rbio(s
)) {
1273 SSL_set0_wbio(s
, wbio
);
1277 * There is an asymmetry here for historical reasons. If only the rbio is
1278 * changed AND the rbio and wbio were originally different, then we only
1279 * adopt one reference.
1281 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1282 SSL_set0_rbio(s
, rbio
);
1286 /* Otherwise, adopt both references. */
1287 SSL_set0_rbio(s
, rbio
);
1288 SSL_set0_wbio(s
, wbio
);
1291 BIO
*SSL_get_rbio(const SSL
*s
)
1296 BIO
*SSL_get_wbio(const SSL
*s
)
1298 if (s
->bbio
!= NULL
) {
1300 * If |bbio| is active, the true caller-configured BIO is its
1303 return BIO_next(s
->bbio
);
1308 int SSL_get_fd(const SSL
*s
)
1310 return SSL_get_rfd(s
);
1313 int SSL_get_rfd(const SSL
*s
)
1318 b
= SSL_get_rbio(s
);
1319 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1321 BIO_get_fd(r
, &ret
);
1325 int SSL_get_wfd(const SSL
*s
)
1330 b
= SSL_get_wbio(s
);
1331 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1333 BIO_get_fd(r
, &ret
);
1337 #ifndef OPENSSL_NO_SOCK
1338 int SSL_set_fd(SSL
*s
, int fd
)
1343 bio
= BIO_new(BIO_s_socket());
1346 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1349 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1350 SSL_set_bio(s
, bio
, bio
);
1356 int SSL_set_wfd(SSL
*s
, int fd
)
1358 BIO
*rbio
= SSL_get_rbio(s
);
1360 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1361 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1362 BIO
*bio
= BIO_new(BIO_s_socket());
1365 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1368 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1369 SSL_set0_wbio(s
, bio
);
1372 SSL_set0_wbio(s
, rbio
);
1377 int SSL_set_rfd(SSL
*s
, int fd
)
1379 BIO
*wbio
= SSL_get_wbio(s
);
1381 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1382 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1383 BIO
*bio
= BIO_new(BIO_s_socket());
1386 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1389 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1390 SSL_set0_rbio(s
, bio
);
1393 SSL_set0_rbio(s
, wbio
);
1400 /* return length of latest Finished message we sent, copy to 'buf' */
1401 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1405 if (s
->s3
!= NULL
) {
1406 ret
= s
->s3
->tmp
.finish_md_len
;
1409 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1414 /* return length of latest Finished message we expected, copy to 'buf' */
1415 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1419 if (s
->s3
!= NULL
) {
1420 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1423 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1428 int SSL_get_verify_mode(const SSL
*s
)
1430 return s
->verify_mode
;
1433 int SSL_get_verify_depth(const SSL
*s
)
1435 return X509_VERIFY_PARAM_get_depth(s
->param
);
1438 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1439 return s
->verify_callback
;
1442 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1444 return ctx
->verify_mode
;
1447 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1449 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1452 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1453 return ctx
->default_verify_callback
;
1456 void SSL_set_verify(SSL
*s
, int mode
,
1457 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1459 s
->verify_mode
= mode
;
1460 if (callback
!= NULL
)
1461 s
->verify_callback
= callback
;
1464 void SSL_set_verify_depth(SSL
*s
, int depth
)
1466 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1469 void SSL_set_read_ahead(SSL
*s
, int yes
)
1471 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1474 int SSL_get_read_ahead(const SSL
*s
)
1476 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1479 int SSL_pending(const SSL
*s
)
1481 size_t pending
= s
->method
->ssl_pending(s
);
1484 * SSL_pending cannot work properly if read-ahead is enabled
1485 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1486 * impossible to fix since SSL_pending cannot report errors that may be
1487 * observed while scanning the new data. (Note that SSL_pending() is
1488 * often used as a boolean value, so we'd better not return -1.)
1490 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1491 * we just return INT_MAX.
1493 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1496 int SSL_has_pending(const SSL
*s
)
1499 * Similar to SSL_pending() but returns a 1 to indicate that we have
1500 * unprocessed data available or 0 otherwise (as opposed to the number of
1501 * bytes available). Unlike SSL_pending() this will take into account
1502 * read_ahead data. A 1 return simply indicates that we have unprocessed
1503 * data. That data may not result in any application data, or we may fail
1504 * to parse the records for some reason.
1506 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1509 return RECORD_LAYER_read_pending(&s
->rlayer
);
1512 X509
*SSL_get_peer_certificate(const SSL
*s
)
1516 if ((s
== NULL
) || (s
->session
== NULL
))
1519 r
= s
->session
->peer
;
1529 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1533 if ((s
== NULL
) || (s
->session
== NULL
))
1536 r
= s
->session
->peer_chain
;
1539 * If we are a client, cert_chain includes the peer's own certificate; if
1540 * we are a server, it does not.
1547 * Now in theory, since the calling process own 't' it should be safe to
1548 * modify. We need to be able to read f without being hassled
1550 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1553 /* Do we need to to SSL locking? */
1554 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1559 * what if we are setup for one protocol version but want to talk another
1561 if (t
->method
!= f
->method
) {
1562 t
->method
->ssl_free(t
);
1563 t
->method
= f
->method
;
1564 if (t
->method
->ssl_new(t
) == 0)
1568 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1569 ssl_cert_free(t
->cert
);
1571 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1578 /* Fix this so it checks all the valid key/cert options */
1579 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1581 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1582 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1585 if (ctx
->cert
->key
->privatekey
== NULL
) {
1586 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1589 return X509_check_private_key
1590 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1593 /* Fix this function so that it takes an optional type parameter */
1594 int SSL_check_private_key(const SSL
*ssl
)
1597 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1600 if (ssl
->cert
->key
->x509
== NULL
) {
1601 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1604 if (ssl
->cert
->key
->privatekey
== NULL
) {
1605 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1608 return X509_check_private_key(ssl
->cert
->key
->x509
,
1609 ssl
->cert
->key
->privatekey
);
1612 int SSL_waiting_for_async(SSL
*s
)
1620 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1622 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1626 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1629 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1630 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1632 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1636 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1640 int SSL_accept(SSL
*s
)
1642 if (s
->handshake_func
== NULL
) {
1643 /* Not properly initialized yet */
1644 SSL_set_accept_state(s
);
1647 return SSL_do_handshake(s
);
1650 int SSL_connect(SSL
*s
)
1652 if (s
->handshake_func
== NULL
) {
1653 /* Not properly initialized yet */
1654 SSL_set_connect_state(s
);
1657 return SSL_do_handshake(s
);
1660 long SSL_get_default_timeout(const SSL
*s
)
1662 return s
->method
->get_timeout();
1665 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1666 int (*func
) (void *))
1669 if (s
->waitctx
== NULL
) {
1670 s
->waitctx
= ASYNC_WAIT_CTX_new();
1671 if (s
->waitctx
== NULL
)
1674 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1675 sizeof(struct ssl_async_args
))) {
1677 s
->rwstate
= SSL_NOTHING
;
1678 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1681 s
->rwstate
= SSL_ASYNC_PAUSED
;
1684 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1690 s
->rwstate
= SSL_NOTHING
;
1691 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1692 /* Shouldn't happen */
1697 static int ssl_io_intern(void *vargs
)
1699 struct ssl_async_args
*args
;
1704 args
= (struct ssl_async_args
*)vargs
;
1708 switch (args
->type
) {
1710 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1712 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1714 return args
->f
.func_other(s
);
1719 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1721 if (s
->handshake_func
== NULL
) {
1722 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1726 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1727 s
->rwstate
= SSL_NOTHING
;
1731 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1732 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1733 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1737 * If we are a client and haven't received the ServerHello etc then we
1740 ossl_statem_check_finish_init(s
, 0);
1742 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1743 struct ssl_async_args args
;
1749 args
.type
= READFUNC
;
1750 args
.f
.func_read
= s
->method
->ssl_read
;
1752 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1753 *readbytes
= s
->asyncrw
;
1756 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1760 int SSL_read(SSL
*s
, void *buf
, int num
)
1766 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1770 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1773 * The cast is safe here because ret should be <= INT_MAX because num is
1777 ret
= (int)readbytes
;
1782 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1784 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1791 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1796 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1797 return SSL_READ_EARLY_DATA_ERROR
;
1800 switch (s
->early_data_state
) {
1801 case SSL_EARLY_DATA_NONE
:
1802 if (!SSL_in_before(s
)) {
1803 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1804 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1805 return SSL_READ_EARLY_DATA_ERROR
;
1809 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1810 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1811 ret
= SSL_accept(s
);
1814 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1815 return SSL_READ_EARLY_DATA_ERROR
;
1819 case SSL_EARLY_DATA_READ_RETRY
:
1820 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1821 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1822 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1824 * State machine will update early_data_state to
1825 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1828 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1829 != SSL_EARLY_DATA_FINISHED_READING
)) {
1830 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1831 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1832 : SSL_READ_EARLY_DATA_ERROR
;
1835 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1838 return SSL_READ_EARLY_DATA_FINISH
;
1841 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1842 return SSL_READ_EARLY_DATA_ERROR
;
1846 int SSL_get_early_data_status(const SSL
*s
)
1848 return s
->ext
.early_data
;
1851 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1853 if (s
->handshake_func
== NULL
) {
1854 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1858 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1861 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1862 struct ssl_async_args args
;
1868 args
.type
= READFUNC
;
1869 args
.f
.func_read
= s
->method
->ssl_peek
;
1871 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1872 *readbytes
= s
->asyncrw
;
1875 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1879 int SSL_peek(SSL
*s
, void *buf
, int num
)
1885 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1889 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1892 * The cast is safe here because ret should be <= INT_MAX because num is
1896 ret
= (int)readbytes
;
1902 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1904 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1911 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1913 if (s
->handshake_func
== NULL
) {
1914 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1918 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1919 s
->rwstate
= SSL_NOTHING
;
1920 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1924 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1925 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1926 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1927 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1930 /* If we are a client and haven't sent the Finished we better do that */
1931 ossl_statem_check_finish_init(s
, 1);
1933 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1935 struct ssl_async_args args
;
1938 args
.buf
= (void *)buf
;
1940 args
.type
= WRITEFUNC
;
1941 args
.f
.func_write
= s
->method
->ssl_write
;
1943 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1944 *written
= s
->asyncrw
;
1947 return s
->method
->ssl_write(s
, buf
, num
, written
);
1951 int SSL_write(SSL
*s
, const void *buf
, int num
)
1957 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1961 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1964 * The cast is safe here because ret should be <= INT_MAX because num is
1973 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1975 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1982 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1984 int ret
, early_data_state
;
1986 uint32_t partialwrite
;
1988 switch (s
->early_data_state
) {
1989 case SSL_EARLY_DATA_NONE
:
1991 || !SSL_in_before(s
)
1992 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1993 && (s
->psk_use_session_cb
== NULL
))) {
1994 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1995 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2000 case SSL_EARLY_DATA_CONNECT_RETRY
:
2001 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2002 ret
= SSL_connect(s
);
2005 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2010 case SSL_EARLY_DATA_WRITE_RETRY
:
2011 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2013 * We disable partial write for early data because we don't keep track
2014 * of how many bytes we've written between the SSL_write_ex() call and
2015 * the flush if the flush needs to be retried)
2017 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2018 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2019 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2020 s
->mode
|= partialwrite
;
2022 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2025 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2028 case SSL_EARLY_DATA_WRITE_FLUSH
:
2029 /* The buffering BIO is still in place so we need to flush it */
2030 if (statem_flush(s
) != 1)
2033 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2036 case SSL_EARLY_DATA_FINISHED_READING
:
2037 case SSL_EARLY_DATA_READ_RETRY
:
2038 early_data_state
= s
->early_data_state
;
2039 /* We are a server writing to an unauthenticated client */
2040 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2041 ret
= SSL_write_ex(s
, buf
, num
, written
);
2042 s
->early_data_state
= early_data_state
;
2046 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2051 int SSL_shutdown(SSL
*s
)
2054 * Note that this function behaves differently from what one might
2055 * expect. Return values are 0 for no success (yet), 1 for success; but
2056 * calling it once is usually not enough, even if blocking I/O is used
2057 * (see ssl3_shutdown).
2060 if (s
->handshake_func
== NULL
) {
2061 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2065 if (!SSL_in_init(s
)) {
2066 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2067 struct ssl_async_args args
;
2070 args
.type
= OTHERFUNC
;
2071 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2073 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2075 return s
->method
->ssl_shutdown(s
);
2078 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2083 int SSL_key_update(SSL
*s
, int updatetype
)
2086 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2087 * negotiated, and that it is appropriate to call SSL_key_update() instead
2088 * of SSL_renegotiate().
2090 if (!SSL_IS_TLS13(s
)) {
2091 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2095 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2096 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2097 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2101 if (!SSL_is_init_finished(s
)) {
2102 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2106 ossl_statem_set_in_init(s
, 1);
2107 s
->key_update
= updatetype
;
2111 int SSL_get_key_update_type(SSL
*s
)
2113 return s
->key_update
;
2116 int SSL_renegotiate(SSL
*s
)
2118 if (SSL_IS_TLS13(s
)) {
2119 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2123 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2124 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2131 return s
->method
->ssl_renegotiate(s
);
2134 int SSL_renegotiate_abbreviated(SSL
*s
)
2136 if (SSL_IS_TLS13(s
)) {
2137 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2141 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2142 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2149 return s
->method
->ssl_renegotiate(s
);
2152 int SSL_renegotiate_pending(SSL
*s
)
2155 * becomes true when negotiation is requested; false again once a
2156 * handshake has finished
2158 return (s
->renegotiate
!= 0);
2161 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2166 case SSL_CTRL_GET_READ_AHEAD
:
2167 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2168 case SSL_CTRL_SET_READ_AHEAD
:
2169 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2170 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2173 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2174 s
->msg_callback_arg
= parg
;
2178 return (s
->mode
|= larg
);
2179 case SSL_CTRL_CLEAR_MODE
:
2180 return (s
->mode
&= ~larg
);
2181 case SSL_CTRL_GET_MAX_CERT_LIST
:
2182 return (long)s
->max_cert_list
;
2183 case SSL_CTRL_SET_MAX_CERT_LIST
:
2186 l
= (long)s
->max_cert_list
;
2187 s
->max_cert_list
= (size_t)larg
;
2189 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2190 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2192 s
->max_send_fragment
= larg
;
2193 if (s
->max_send_fragment
< s
->split_send_fragment
)
2194 s
->split_send_fragment
= s
->max_send_fragment
;
2196 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2197 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2199 s
->split_send_fragment
= larg
;
2201 case SSL_CTRL_SET_MAX_PIPELINES
:
2202 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2204 s
->max_pipelines
= larg
;
2206 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2208 case SSL_CTRL_GET_RI_SUPPORT
:
2210 return s
->s3
->send_connection_binding
;
2213 case SSL_CTRL_CERT_FLAGS
:
2214 return (s
->cert
->cert_flags
|= larg
);
2215 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2216 return (s
->cert
->cert_flags
&= ~larg
);
2218 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2220 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2222 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2223 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2225 return TLS_CIPHER_LEN
;
2227 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2228 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2230 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2234 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2235 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2236 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2237 &s
->min_proto_version
);
2238 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2239 return s
->min_proto_version
;
2240 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2241 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2242 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2243 &s
->max_proto_version
);
2244 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2245 return s
->max_proto_version
;
2247 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2251 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2254 case SSL_CTRL_SET_MSG_CALLBACK
:
2255 s
->msg_callback
= (void (*)
2256 (int write_p
, int version
, int content_type
,
2257 const void *buf
, size_t len
, SSL
*ssl
,
2262 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2266 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2268 return ctx
->sessions
;
2271 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2275 /* For some cases with ctx == NULL perform syntax checks */
2278 #ifndef OPENSSL_NO_EC
2279 case SSL_CTRL_SET_GROUPS_LIST
:
2280 return tls1_set_groups_list(NULL
, NULL
, parg
);
2282 case SSL_CTRL_SET_SIGALGS_LIST
:
2283 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2284 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2291 case SSL_CTRL_GET_READ_AHEAD
:
2292 return ctx
->read_ahead
;
2293 case SSL_CTRL_SET_READ_AHEAD
:
2294 l
= ctx
->read_ahead
;
2295 ctx
->read_ahead
= larg
;
2298 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2299 ctx
->msg_callback_arg
= parg
;
2302 case SSL_CTRL_GET_MAX_CERT_LIST
:
2303 return (long)ctx
->max_cert_list
;
2304 case SSL_CTRL_SET_MAX_CERT_LIST
:
2307 l
= (long)ctx
->max_cert_list
;
2308 ctx
->max_cert_list
= (size_t)larg
;
2311 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2314 l
= (long)ctx
->session_cache_size
;
2315 ctx
->session_cache_size
= (size_t)larg
;
2317 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2318 return (long)ctx
->session_cache_size
;
2319 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2320 l
= ctx
->session_cache_mode
;
2321 ctx
->session_cache_mode
= larg
;
2323 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2324 return ctx
->session_cache_mode
;
2326 case SSL_CTRL_SESS_NUMBER
:
2327 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2328 case SSL_CTRL_SESS_CONNECT
:
2329 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect
, &i
, ctx
->lock
)
2331 case SSL_CTRL_SESS_CONNECT_GOOD
:
2332 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_good
, &i
, ctx
->lock
)
2334 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2335 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_renegotiate
, &i
,
2338 case SSL_CTRL_SESS_ACCEPT
:
2339 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept
, &i
, ctx
->lock
)
2341 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2342 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_good
, &i
, ctx
->lock
)
2344 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2345 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_renegotiate
, &i
,
2348 case SSL_CTRL_SESS_HIT
:
2349 return CRYPTO_atomic_read(&ctx
->stats
.sess_hit
, &i
, ctx
->lock
)
2351 case SSL_CTRL_SESS_CB_HIT
:
2352 return CRYPTO_atomic_read(&ctx
->stats
.sess_cb_hit
, &i
, ctx
->lock
)
2354 case SSL_CTRL_SESS_MISSES
:
2355 return CRYPTO_atomic_read(&ctx
->stats
.sess_miss
, &i
, ctx
->lock
)
2357 case SSL_CTRL_SESS_TIMEOUTS
:
2358 return CRYPTO_atomic_read(&ctx
->stats
.sess_timeout
, &i
, ctx
->lock
)
2360 case SSL_CTRL_SESS_CACHE_FULL
:
2361 return CRYPTO_atomic_read(&ctx
->stats
.sess_cache_full
, &i
, ctx
->lock
)
2364 return (ctx
->mode
|= larg
);
2365 case SSL_CTRL_CLEAR_MODE
:
2366 return (ctx
->mode
&= ~larg
);
2367 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2368 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2370 ctx
->max_send_fragment
= larg
;
2371 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2372 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2374 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2375 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2377 ctx
->split_send_fragment
= larg
;
2379 case SSL_CTRL_SET_MAX_PIPELINES
:
2380 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2382 ctx
->max_pipelines
= larg
;
2384 case SSL_CTRL_CERT_FLAGS
:
2385 return (ctx
->cert
->cert_flags
|= larg
);
2386 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2387 return (ctx
->cert
->cert_flags
&= ~larg
);
2388 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2389 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2390 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2391 &ctx
->min_proto_version
);
2392 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2393 return ctx
->min_proto_version
;
2394 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2395 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2396 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2397 &ctx
->max_proto_version
);
2398 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2399 return ctx
->max_proto_version
;
2401 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2405 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2408 case SSL_CTRL_SET_MSG_CALLBACK
:
2409 ctx
->msg_callback
= (void (*)
2410 (int write_p
, int version
, int content_type
,
2411 const void *buf
, size_t len
, SSL
*ssl
,
2416 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2420 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2429 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2430 const SSL_CIPHER
*const *bp
)
2432 if ((*ap
)->id
> (*bp
)->id
)
2434 if ((*ap
)->id
< (*bp
)->id
)
2439 /** return a STACK of the ciphers available for the SSL and in order of
2441 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2444 if (s
->cipher_list
!= NULL
) {
2445 return s
->cipher_list
;
2446 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2447 return s
->ctx
->cipher_list
;
2453 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2455 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2457 return s
->session
->ciphers
;
2460 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2462 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2465 ciphers
= SSL_get_ciphers(s
);
2468 if (!ssl_set_client_disabled(s
))
2470 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2471 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2472 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2474 sk
= sk_SSL_CIPHER_new_null();
2477 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2478 sk_SSL_CIPHER_free(sk
);
2486 /** return a STACK of the ciphers available for the SSL and in order of
2488 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2491 if (s
->cipher_list_by_id
!= NULL
) {
2492 return s
->cipher_list_by_id
;
2493 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2494 return s
->ctx
->cipher_list_by_id
;
2500 /** The old interface to get the same thing as SSL_get_ciphers() */
2501 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2503 const SSL_CIPHER
*c
;
2504 STACK_OF(SSL_CIPHER
) *sk
;
2508 sk
= SSL_get_ciphers(s
);
2509 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2511 c
= sk_SSL_CIPHER_value(sk
, n
);
2517 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2519 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2522 return ctx
->cipher_list
;
2526 /** specify the ciphers to be used by default by the SSL_CTX */
2527 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2529 STACK_OF(SSL_CIPHER
) *sk
;
2531 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2532 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2535 * ssl_create_cipher_list may return an empty stack if it was unable to
2536 * find a cipher matching the given rule string (for example if the rule
2537 * string specifies a cipher which has been disabled). This is not an
2538 * error as far as ssl_create_cipher_list is concerned, and hence
2539 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2543 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2544 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2550 /** specify the ciphers to be used by the SSL */
2551 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2553 STACK_OF(SSL_CIPHER
) *sk
;
2555 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2556 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2558 /* see comment in SSL_CTX_set_cipher_list */
2561 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2562 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2568 static int ciphersuite_cb(const char *elem
, int len
, void *arg
)
2570 STACK_OF(SSL_CIPHER
) *ciphersuites
= (STACK_OF(SSL_CIPHER
) *)arg
;
2571 const SSL_CIPHER
*cipher
;
2572 /* Arbitrary sized temp buffer for the cipher name. Should be big enough */
2575 if (len
> (int)(sizeof(name
) - 1)) {
2576 SSLerr(SSL_F_CIPHERSUITE_CB
, SSL_R_NO_CIPHER_MATCH
);
2580 memcpy(name
, elem
, len
);
2583 cipher
= ssl3_get_cipher_by_std_name(name
);
2584 if (cipher
== NULL
) {
2585 SSLerr(SSL_F_CIPHERSUITE_CB
, SSL_R_NO_CIPHER_MATCH
);
2589 if (!sk_SSL_CIPHER_push(ciphersuites
, cipher
)) {
2590 SSLerr(SSL_F_CIPHERSUITE_CB
, ERR_R_INTERNAL_ERROR
);
2597 static int set_ciphersuites(STACK_OF(SSL_CIPHER
) **currciphers
, const char *str
)
2599 STACK_OF(SSL_CIPHER
) *newciphers
= sk_SSL_CIPHER_new_null();
2601 if (newciphers
== NULL
)
2604 /* Parse the list. We explicitly allow an empty list */
2606 && !CONF_parse_list(str
, ':', 1, ciphersuite_cb
, newciphers
)) {
2607 sk_SSL_CIPHER_free(newciphers
);
2610 sk_SSL_CIPHER_free(*currciphers
);
2611 *currciphers
= newciphers
;
2616 static int update_cipher_list(STACK_OF(SSL_CIPHER
) *cipher_list
,
2617 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
)
2622 * Delete any existing TLSv1.3 ciphersuites. These are always first in the
2625 while (sk_SSL_CIPHER_num(cipher_list
) > 0
2626 && sk_SSL_CIPHER_value(cipher_list
, 0)->min_tls
== TLS1_3_VERSION
)
2627 sk_SSL_CIPHER_delete(cipher_list
, 0);
2629 /* Insert the new TLSv1.3 ciphersuites */
2630 for (i
= 0; i
< sk_SSL_CIPHER_num(tls13_ciphersuites
); i
++)
2631 sk_SSL_CIPHER_insert(cipher_list
,
2632 sk_SSL_CIPHER_value(tls13_ciphersuites
, i
), i
);
2637 int SSL_CTX_set_ciphersuites(SSL_CTX
*ctx
, const char *str
)
2639 int ret
= set_ciphersuites(&(ctx
->tls13_ciphersuites
), str
);
2641 if (ret
&& ctx
->cipher_list
!= NULL
) {
2642 /* We already have a cipher_list, so we need to update it */
2643 return update_cipher_list(ctx
->cipher_list
, ctx
->tls13_ciphersuites
);
2649 int SSL_set_ciphersuites(SSL
*s
, const char *str
)
2651 int ret
= set_ciphersuites(&(s
->tls13_ciphersuites
), str
);
2653 if (ret
&& s
->cipher_list
!= NULL
) {
2654 /* We already have a cipher_list, so we need to update it */
2655 return update_cipher_list(s
->cipher_list
, s
->tls13_ciphersuites
);
2661 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2664 STACK_OF(SSL_CIPHER
) *sk
;
2665 const SSL_CIPHER
*c
;
2668 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2672 sk
= s
->session
->ciphers
;
2674 if (sk_SSL_CIPHER_num(sk
) == 0)
2677 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2680 c
= sk_SSL_CIPHER_value(sk
, i
);
2681 n
= strlen(c
->name
);
2697 /** return a servername extension value if provided in Client Hello, or NULL.
2698 * So far, only host_name types are defined (RFC 3546).
2701 const char *SSL_get_servername(const SSL
*s
, const int type
)
2703 if (type
!= TLSEXT_NAMETYPE_host_name
)
2706 return s
->session
&& !s
->ext
.hostname
?
2707 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2710 int SSL_get_servername_type(const SSL
*s
)
2713 && (!s
->ext
.hostname
? s
->session
->
2714 ext
.hostname
: s
->ext
.hostname
))
2715 return TLSEXT_NAMETYPE_host_name
;
2720 * SSL_select_next_proto implements the standard protocol selection. It is
2721 * expected that this function is called from the callback set by
2722 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2723 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2724 * not included in the length. A byte string of length 0 is invalid. No byte
2725 * string may be truncated. The current, but experimental algorithm for
2726 * selecting the protocol is: 1) If the server doesn't support NPN then this
2727 * is indicated to the callback. In this case, the client application has to
2728 * abort the connection or have a default application level protocol. 2) If
2729 * the server supports NPN, but advertises an empty list then the client
2730 * selects the first protocol in its list, but indicates via the API that this
2731 * fallback case was enacted. 3) Otherwise, the client finds the first
2732 * protocol in the server's list that it supports and selects this protocol.
2733 * This is because it's assumed that the server has better information about
2734 * which protocol a client should use. 4) If the client doesn't support any
2735 * of the server's advertised protocols, then this is treated the same as
2736 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2737 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2739 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2740 const unsigned char *server
,
2741 unsigned int server_len
,
2742 const unsigned char *client
, unsigned int client_len
)
2745 const unsigned char *result
;
2746 int status
= OPENSSL_NPN_UNSUPPORTED
;
2749 * For each protocol in server preference order, see if we support it.
2751 for (i
= 0; i
< server_len
;) {
2752 for (j
= 0; j
< client_len
;) {
2753 if (server
[i
] == client
[j
] &&
2754 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2755 /* We found a match */
2756 result
= &server
[i
];
2757 status
= OPENSSL_NPN_NEGOTIATED
;
2767 /* There's no overlap between our protocols and the server's list. */
2769 status
= OPENSSL_NPN_NO_OVERLAP
;
2772 *out
= (unsigned char *)result
+ 1;
2773 *outlen
= result
[0];
2777 #ifndef OPENSSL_NO_NEXTPROTONEG
2779 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2780 * client's requested protocol for this connection and returns 0. If the
2781 * client didn't request any protocol, then *data is set to NULL. Note that
2782 * the client can request any protocol it chooses. The value returned from
2783 * this function need not be a member of the list of supported protocols
2784 * provided by the callback.
2786 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2793 *len
= (unsigned int)s
->ext
.npn_len
;
2798 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2799 * a TLS server needs a list of supported protocols for Next Protocol
2800 * Negotiation. The returned list must be in wire format. The list is
2801 * returned by setting |out| to point to it and |outlen| to its length. This
2802 * memory will not be modified, but one should assume that the SSL* keeps a
2803 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2804 * wishes to advertise. Otherwise, no such extension will be included in the
2807 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2808 SSL_CTX_npn_advertised_cb_func cb
,
2811 ctx
->ext
.npn_advertised_cb
= cb
;
2812 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2816 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2817 * client needs to select a protocol from the server's provided list. |out|
2818 * must be set to point to the selected protocol (which may be within |in|).
2819 * The length of the protocol name must be written into |outlen|. The
2820 * server's advertised protocols are provided in |in| and |inlen|. The
2821 * callback can assume that |in| is syntactically valid. The client must
2822 * select a protocol. It is fatal to the connection if this callback returns
2823 * a value other than SSL_TLSEXT_ERR_OK.
2825 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2826 SSL_CTX_npn_select_cb_func cb
,
2829 ctx
->ext
.npn_select_cb
= cb
;
2830 ctx
->ext
.npn_select_cb_arg
= arg
;
2835 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2836 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2837 * length-prefixed strings). Returns 0 on success.
2839 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2840 unsigned int protos_len
)
2842 OPENSSL_free(ctx
->ext
.alpn
);
2843 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2844 if (ctx
->ext
.alpn
== NULL
) {
2845 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2848 ctx
->ext
.alpn_len
= protos_len
;
2854 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2855 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2856 * length-prefixed strings). Returns 0 on success.
2858 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2859 unsigned int protos_len
)
2861 OPENSSL_free(ssl
->ext
.alpn
);
2862 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2863 if (ssl
->ext
.alpn
== NULL
) {
2864 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2867 ssl
->ext
.alpn_len
= protos_len
;
2873 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2874 * called during ClientHello processing in order to select an ALPN protocol
2875 * from the client's list of offered protocols.
2877 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2878 SSL_CTX_alpn_select_cb_func cb
,
2881 ctx
->ext
.alpn_select_cb
= cb
;
2882 ctx
->ext
.alpn_select_cb_arg
= arg
;
2886 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2887 * On return it sets |*data| to point to |*len| bytes of protocol name
2888 * (not including the leading length-prefix byte). If the server didn't
2889 * respond with a negotiated protocol then |*len| will be zero.
2891 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2896 *data
= ssl
->s3
->alpn_selected
;
2900 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2903 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2904 const char *label
, size_t llen
,
2905 const unsigned char *context
, size_t contextlen
,
2908 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2911 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2913 contextlen
, use_context
);
2916 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2917 const char *label
, size_t llen
,
2918 const unsigned char *context
,
2921 if (s
->version
!= TLS1_3_VERSION
)
2924 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2925 context
, contextlen
);
2928 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2930 const unsigned char *session_id
= a
->session_id
;
2932 unsigned char tmp_storage
[4];
2934 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2935 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2936 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2937 session_id
= tmp_storage
;
2941 ((unsigned long)session_id
[0]) |
2942 ((unsigned long)session_id
[1] << 8L) |
2943 ((unsigned long)session_id
[2] << 16L) |
2944 ((unsigned long)session_id
[3] << 24L);
2949 * NB: If this function (or indeed the hash function which uses a sort of
2950 * coarser function than this one) is changed, ensure
2951 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2952 * being able to construct an SSL_SESSION that will collide with any existing
2953 * session with a matching session ID.
2955 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2957 if (a
->ssl_version
!= b
->ssl_version
)
2959 if (a
->session_id_length
!= b
->session_id_length
)
2961 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2965 * These wrapper functions should remain rather than redeclaring
2966 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2967 * variable. The reason is that the functions aren't static, they're exposed
2971 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2973 SSL_CTX
*ret
= NULL
;
2976 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2980 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2983 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2984 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2987 ret
= OPENSSL_zalloc(sizeof(*ret
));
2992 ret
->min_proto_version
= 0;
2993 ret
->max_proto_version
= 0;
2994 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2995 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2996 /* We take the system default. */
2997 ret
->session_timeout
= meth
->get_timeout();
2998 ret
->references
= 1;
2999 ret
->lock
= CRYPTO_THREAD_lock_new();
3000 if (ret
->lock
== NULL
) {
3001 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3005 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3006 ret
->verify_mode
= SSL_VERIFY_NONE
;
3007 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3010 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3011 if (ret
->sessions
== NULL
)
3013 ret
->cert_store
= X509_STORE_new();
3014 if (ret
->cert_store
== NULL
)
3016 #ifndef OPENSSL_NO_CT
3017 ret
->ctlog_store
= CTLOG_STORE_new();
3018 if (ret
->ctlog_store
== NULL
)
3022 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
3025 if (!ssl_create_cipher_list(ret
->method
,
3026 ret
->tls13_ciphersuites
,
3027 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3028 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
3029 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3030 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3034 ret
->param
= X509_VERIFY_PARAM_new();
3035 if (ret
->param
== NULL
)
3038 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
3039 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
3042 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
3043 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
3047 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3050 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3053 /* No compression for DTLS */
3054 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3055 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3057 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3058 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3060 /* Setup RFC5077 ticket keys */
3061 if ((RAND_bytes(ret
->ext
.tick_key_name
,
3062 sizeof(ret
->ext
.tick_key_name
)) <= 0)
3063 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
3064 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
3065 || (RAND_bytes(ret
->ext
.tick_aes_key
,
3066 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
3067 ret
->options
|= SSL_OP_NO_TICKET
;
3069 if (RAND_bytes(ret
->ext
.cookie_hmac_key
,
3070 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
3073 #ifndef OPENSSL_NO_SRP
3074 if (!SSL_CTX_SRP_CTX_init(ret
))
3077 #ifndef OPENSSL_NO_ENGINE
3078 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3079 # define eng_strx(x) #x
3080 # define eng_str(x) eng_strx(x)
3081 /* Use specific client engine automatically... ignore errors */
3084 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3087 ENGINE_load_builtin_engines();
3088 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3090 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3096 * Default is to connect to non-RI servers. When RI is more widely
3097 * deployed might change this.
3099 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3101 * Disable compression by default to prevent CRIME. Applications can
3102 * re-enable compression by configuring
3103 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3104 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3105 * middlebox compatibility by default. This may be disabled by default in
3106 * a later OpenSSL version.
3108 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3110 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3113 * We cannot usefully set a default max_early_data here (which gets
3114 * propagated in SSL_new(), for the following reason: setting the
3115 * SSL field causes tls_construct_stoc_early_data() to tell the
3116 * client that early data will be accepted when constructing a TLS 1.3
3117 * session ticket, and the client will accordingly send us early data
3118 * when using that ticket (if the client has early data to send).
3119 * However, in order for the early data to actually be consumed by
3120 * the application, the application must also have calls to
3121 * SSL_read_early_data(); otherwise we'll just skip past the early data
3122 * and ignore it. So, since the application must add calls to
3123 * SSL_read_early_data(), we also require them to add
3124 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3125 * eliminating the bandwidth-wasting early data in the case described
3128 ret
->max_early_data
= 0;
3132 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3138 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3142 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3145 REF_PRINT_COUNT("SSL_CTX", ctx
);
3146 REF_ASSERT_ISNT(i
< 2);
3147 return ((i
> 1) ? 1 : 0);
3150 void SSL_CTX_free(SSL_CTX
*a
)
3157 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3158 REF_PRINT_COUNT("SSL_CTX", a
);
3161 REF_ASSERT_ISNT(i
< 0);
3163 X509_VERIFY_PARAM_free(a
->param
);
3164 dane_ctx_final(&a
->dane
);
3167 * Free internal session cache. However: the remove_cb() may reference
3168 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3169 * after the sessions were flushed.
3170 * As the ex_data handling routines might also touch the session cache,
3171 * the most secure solution seems to be: empty (flush) the cache, then
3172 * free ex_data, then finally free the cache.
3173 * (See ticket [openssl.org #212].)
3175 if (a
->sessions
!= NULL
)
3176 SSL_CTX_flush_sessions(a
, 0);
3178 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3179 lh_SSL_SESSION_free(a
->sessions
);
3180 X509_STORE_free(a
->cert_store
);
3181 #ifndef OPENSSL_NO_CT
3182 CTLOG_STORE_free(a
->ctlog_store
);
3184 sk_SSL_CIPHER_free(a
->cipher_list
);
3185 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3186 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3187 ssl_cert_free(a
->cert
);
3188 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3189 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3190 a
->comp_methods
= NULL
;
3191 #ifndef OPENSSL_NO_SRTP
3192 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3194 #ifndef OPENSSL_NO_SRP
3195 SSL_CTX_SRP_CTX_free(a
);
3197 #ifndef OPENSSL_NO_ENGINE
3198 ENGINE_finish(a
->client_cert_engine
);
3201 #ifndef OPENSSL_NO_EC
3202 OPENSSL_free(a
->ext
.ecpointformats
);
3203 OPENSSL_free(a
->ext
.supportedgroups
);
3205 OPENSSL_free(a
->ext
.alpn
);
3207 CRYPTO_THREAD_lock_free(a
->lock
);
3212 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3214 ctx
->default_passwd_callback
= cb
;
3217 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3219 ctx
->default_passwd_callback_userdata
= u
;
3222 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3224 return ctx
->default_passwd_callback
;
3227 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3229 return ctx
->default_passwd_callback_userdata
;
3232 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3234 s
->default_passwd_callback
= cb
;
3237 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3239 s
->default_passwd_callback_userdata
= u
;
3242 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3244 return s
->default_passwd_callback
;
3247 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3249 return s
->default_passwd_callback_userdata
;
3252 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3253 int (*cb
) (X509_STORE_CTX
*, void *),
3256 ctx
->app_verify_callback
= cb
;
3257 ctx
->app_verify_arg
= arg
;
3260 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3261 int (*cb
) (int, X509_STORE_CTX
*))
3263 ctx
->verify_mode
= mode
;
3264 ctx
->default_verify_callback
= cb
;
3267 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3269 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3272 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3274 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3277 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3279 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3282 void ssl_set_masks(SSL
*s
)
3285 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3286 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3287 unsigned long mask_k
, mask_a
;
3288 #ifndef OPENSSL_NO_EC
3289 int have_ecc_cert
, ecdsa_ok
;
3294 #ifndef OPENSSL_NO_DH
3295 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3300 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3301 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3302 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3303 #ifndef OPENSSL_NO_EC
3304 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3310 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3311 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3314 #ifndef OPENSSL_NO_GOST
3315 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3316 mask_k
|= SSL_kGOST
;
3317 mask_a
|= SSL_aGOST12
;
3319 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3320 mask_k
|= SSL_kGOST
;
3321 mask_a
|= SSL_aGOST12
;
3323 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3324 mask_k
|= SSL_kGOST
;
3325 mask_a
|= SSL_aGOST01
;
3336 * If we only have an RSA-PSS certificate allow RSA authentication
3337 * if TLS 1.2 and peer supports it.
3340 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3341 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3342 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3349 mask_a
|= SSL_aNULL
;
3352 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3353 * depending on the key usage extension.
3355 #ifndef OPENSSL_NO_EC
3356 if (have_ecc_cert
) {
3358 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3359 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3360 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3363 mask_a
|= SSL_aECDSA
;
3365 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3366 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3367 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3368 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3369 mask_a
|= SSL_aECDSA
;
3371 /* Allow Ed448 for TLS 1.2 if peer supports it */
3372 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3373 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3374 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3375 mask_a
|= SSL_aECDSA
;
3378 #ifndef OPENSSL_NO_EC
3379 mask_k
|= SSL_kECDHE
;
3382 #ifndef OPENSSL_NO_PSK
3385 if (mask_k
& SSL_kRSA
)
3386 mask_k
|= SSL_kRSAPSK
;
3387 if (mask_k
& SSL_kDHE
)
3388 mask_k
|= SSL_kDHEPSK
;
3389 if (mask_k
& SSL_kECDHE
)
3390 mask_k
|= SSL_kECDHEPSK
;
3393 s
->s3
->tmp
.mask_k
= mask_k
;
3394 s
->s3
->tmp
.mask_a
= mask_a
;
3397 #ifndef OPENSSL_NO_EC
3399 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3401 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3402 /* key usage, if present, must allow signing */
3403 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3404 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3405 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3409 return 1; /* all checks are ok */
3414 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3415 size_t *serverinfo_length
)
3417 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3418 *serverinfo_length
= 0;
3420 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3423 *serverinfo
= cpk
->serverinfo
;
3424 *serverinfo_length
= cpk
->serverinfo_length
;
3428 void ssl_update_cache(SSL
*s
, int mode
)
3433 * If the session_id_length is 0, we are not supposed to cache it, and it
3434 * would be rather hard to do anyway :-)
3436 if (s
->session
->session_id_length
== 0)
3439 i
= s
->session_ctx
->session_cache_mode
;
3441 && (!s
->hit
|| SSL_IS_TLS13(s
))
3442 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) != 0
3443 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3444 && s
->session_ctx
->new_session_cb
!= NULL
) {
3445 SSL_SESSION_up_ref(s
->session
);
3446 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3447 SSL_SESSION_free(s
->session
);
3450 /* auto flush every 255 connections */
3451 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3453 if (mode
& SSL_SESS_CACHE_CLIENT
)
3454 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3456 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3457 if (CRYPTO_atomic_read(stat
, &val
, s
->session_ctx
->lock
)
3458 && (val
& 0xff) == 0xff)
3459 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3463 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3468 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3473 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3477 if (s
->method
!= meth
) {
3478 const SSL_METHOD
*sm
= s
->method
;
3479 int (*hf
) (SSL
*) = s
->handshake_func
;
3481 if (sm
->version
== meth
->version
)
3486 ret
= s
->method
->ssl_new(s
);
3489 if (hf
== sm
->ssl_connect
)
3490 s
->handshake_func
= meth
->ssl_connect
;
3491 else if (hf
== sm
->ssl_accept
)
3492 s
->handshake_func
= meth
->ssl_accept
;
3497 int SSL_get_error(const SSL
*s
, int i
)
3504 return SSL_ERROR_NONE
;
3507 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3508 * where we do encode the error
3510 if ((l
= ERR_peek_error()) != 0) {
3511 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3512 return SSL_ERROR_SYSCALL
;
3514 return SSL_ERROR_SSL
;
3517 if (SSL_want_read(s
)) {
3518 bio
= SSL_get_rbio(s
);
3519 if (BIO_should_read(bio
))
3520 return SSL_ERROR_WANT_READ
;
3521 else if (BIO_should_write(bio
))
3523 * This one doesn't make too much sense ... We never try to write
3524 * to the rbio, and an application program where rbio and wbio
3525 * are separate couldn't even know what it should wait for.
3526 * However if we ever set s->rwstate incorrectly (so that we have
3527 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3528 * wbio *are* the same, this test works around that bug; so it
3529 * might be safer to keep it.
3531 return SSL_ERROR_WANT_WRITE
;
3532 else if (BIO_should_io_special(bio
)) {
3533 reason
= BIO_get_retry_reason(bio
);
3534 if (reason
== BIO_RR_CONNECT
)
3535 return SSL_ERROR_WANT_CONNECT
;
3536 else if (reason
== BIO_RR_ACCEPT
)
3537 return SSL_ERROR_WANT_ACCEPT
;
3539 return SSL_ERROR_SYSCALL
; /* unknown */
3543 if (SSL_want_write(s
)) {
3544 /* Access wbio directly - in order to use the buffered bio if present */
3546 if (BIO_should_write(bio
))
3547 return SSL_ERROR_WANT_WRITE
;
3548 else if (BIO_should_read(bio
))
3550 * See above (SSL_want_read(s) with BIO_should_write(bio))
3552 return SSL_ERROR_WANT_READ
;
3553 else if (BIO_should_io_special(bio
)) {
3554 reason
= BIO_get_retry_reason(bio
);
3555 if (reason
== BIO_RR_CONNECT
)
3556 return SSL_ERROR_WANT_CONNECT
;
3557 else if (reason
== BIO_RR_ACCEPT
)
3558 return SSL_ERROR_WANT_ACCEPT
;
3560 return SSL_ERROR_SYSCALL
;
3563 if (SSL_want_x509_lookup(s
))
3564 return SSL_ERROR_WANT_X509_LOOKUP
;
3565 if (SSL_want_async(s
))
3566 return SSL_ERROR_WANT_ASYNC
;
3567 if (SSL_want_async_job(s
))
3568 return SSL_ERROR_WANT_ASYNC_JOB
;
3569 if (SSL_want_client_hello_cb(s
))
3570 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3572 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3573 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3574 return SSL_ERROR_ZERO_RETURN
;
3576 return SSL_ERROR_SYSCALL
;
3579 static int ssl_do_handshake_intern(void *vargs
)
3581 struct ssl_async_args
*args
;
3584 args
= (struct ssl_async_args
*)vargs
;
3587 return s
->handshake_func(s
);
3590 int SSL_do_handshake(SSL
*s
)
3594 if (s
->handshake_func
== NULL
) {
3595 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3599 ossl_statem_check_finish_init(s
, -1);
3601 s
->method
->ssl_renegotiate_check(s
, 0);
3603 if (SSL_is_server(s
)) {
3604 /* clear SNI settings at server-side */
3605 OPENSSL_free(s
->ext
.hostname
);
3606 s
->ext
.hostname
= NULL
;
3609 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3610 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3611 struct ssl_async_args args
;
3615 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3617 ret
= s
->handshake_func(s
);
3623 void SSL_set_accept_state(SSL
*s
)
3627 ossl_statem_clear(s
);
3628 s
->handshake_func
= s
->method
->ssl_accept
;
3632 void SSL_set_connect_state(SSL
*s
)
3636 ossl_statem_clear(s
);
3637 s
->handshake_func
= s
->method
->ssl_connect
;
3641 int ssl_undefined_function(SSL
*s
)
3643 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3647 int ssl_undefined_void_function(void)
3649 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3650 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3654 int ssl_undefined_const_function(const SSL
*s
)
3659 const SSL_METHOD
*ssl_bad_method(int ver
)
3661 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3665 const char *ssl_protocol_to_string(int version
)
3669 case TLS1_3_VERSION
:
3672 case TLS1_2_VERSION
:
3675 case TLS1_1_VERSION
:
3690 case DTLS1_2_VERSION
:
3698 const char *SSL_get_version(const SSL
*s
)
3700 return ssl_protocol_to_string(s
->version
);
3703 SSL
*SSL_dup(SSL
*s
)
3705 STACK_OF(X509_NAME
) *sk
;
3710 /* If we're not quiescent, just up_ref! */
3711 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3712 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3717 * Otherwise, copy configuration state, and session if set.
3719 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3722 if (s
->session
!= NULL
) {
3724 * Arranges to share the same session via up_ref. This "copies"
3725 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3727 if (!SSL_copy_session_id(ret
, s
))
3731 * No session has been established yet, so we have to expect that
3732 * s->cert or ret->cert will be changed later -- they should not both
3733 * point to the same object, and thus we can't use
3734 * SSL_copy_session_id.
3736 if (!SSL_set_ssl_method(ret
, s
->method
))
3739 if (s
->cert
!= NULL
) {
3740 ssl_cert_free(ret
->cert
);
3741 ret
->cert
= ssl_cert_dup(s
->cert
);
3742 if (ret
->cert
== NULL
)
3746 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3747 (int)s
->sid_ctx_length
))
3751 if (!ssl_dane_dup(ret
, s
))
3753 ret
->version
= s
->version
;
3754 ret
->options
= s
->options
;
3755 ret
->mode
= s
->mode
;
3756 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3757 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3758 ret
->msg_callback
= s
->msg_callback
;
3759 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3760 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3761 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3762 ret
->generate_session_id
= s
->generate_session_id
;
3764 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3766 /* copy app data, a little dangerous perhaps */
3767 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3770 /* setup rbio, and wbio */
3771 if (s
->rbio
!= NULL
) {
3772 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3775 if (s
->wbio
!= NULL
) {
3776 if (s
->wbio
!= s
->rbio
) {
3777 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3780 BIO_up_ref(ret
->rbio
);
3781 ret
->wbio
= ret
->rbio
;
3785 ret
->server
= s
->server
;
3786 if (s
->handshake_func
) {
3788 SSL_set_accept_state(ret
);
3790 SSL_set_connect_state(ret
);
3792 ret
->shutdown
= s
->shutdown
;
3795 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3796 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3798 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3800 /* dup the cipher_list and cipher_list_by_id stacks */
3801 if (s
->cipher_list
!= NULL
) {
3802 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3805 if (s
->cipher_list_by_id
!= NULL
)
3806 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3810 /* Dup the client_CA list */
3811 if (s
->ca_names
!= NULL
) {
3812 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3815 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3816 xn
= sk_X509_NAME_value(sk
, i
);
3817 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3830 void ssl_clear_cipher_ctx(SSL
*s
)
3832 if (s
->enc_read_ctx
!= NULL
) {
3833 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3834 s
->enc_read_ctx
= NULL
;
3836 if (s
->enc_write_ctx
!= NULL
) {
3837 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3838 s
->enc_write_ctx
= NULL
;
3840 #ifndef OPENSSL_NO_COMP
3841 COMP_CTX_free(s
->expand
);
3843 COMP_CTX_free(s
->compress
);
3848 X509
*SSL_get_certificate(const SSL
*s
)
3850 if (s
->cert
!= NULL
)
3851 return s
->cert
->key
->x509
;
3856 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3858 if (s
->cert
!= NULL
)
3859 return s
->cert
->key
->privatekey
;
3864 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3866 if (ctx
->cert
!= NULL
)
3867 return ctx
->cert
->key
->x509
;
3872 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3874 if (ctx
->cert
!= NULL
)
3875 return ctx
->cert
->key
->privatekey
;
3880 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3882 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3883 return s
->session
->cipher
;
3887 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3889 return s
->s3
->tmp
.new_cipher
;
3892 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3894 #ifndef OPENSSL_NO_COMP
3895 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3901 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3903 #ifndef OPENSSL_NO_COMP
3904 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3910 int ssl_init_wbio_buffer(SSL
*s
)
3914 if (s
->bbio
!= NULL
) {
3915 /* Already buffered. */
3919 bbio
= BIO_new(BIO_f_buffer());
3920 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3922 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3926 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3931 int ssl_free_wbio_buffer(SSL
*s
)
3933 /* callers ensure s is never null */
3934 if (s
->bbio
== NULL
)
3937 s
->wbio
= BIO_pop(s
->wbio
);
3938 if (!ossl_assert(s
->wbio
!= NULL
))
3946 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3948 ctx
->quiet_shutdown
= mode
;
3951 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3953 return ctx
->quiet_shutdown
;
3956 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3958 s
->quiet_shutdown
= mode
;
3961 int SSL_get_quiet_shutdown(const SSL
*s
)
3963 return s
->quiet_shutdown
;
3966 void SSL_set_shutdown(SSL
*s
, int mode
)
3971 int SSL_get_shutdown(const SSL
*s
)
3976 int SSL_version(const SSL
*s
)
3981 int SSL_client_version(const SSL
*s
)
3983 return s
->client_version
;
3986 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3991 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3994 if (ssl
->ctx
== ctx
)
3997 ctx
= ssl
->session_ctx
;
3998 new_cert
= ssl_cert_dup(ctx
->cert
);
3999 if (new_cert
== NULL
) {
4003 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
4004 ssl_cert_free(new_cert
);
4008 ssl_cert_free(ssl
->cert
);
4009 ssl
->cert
= new_cert
;
4012 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4013 * so setter APIs must prevent invalid lengths from entering the system.
4015 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
4019 * If the session ID context matches that of the parent SSL_CTX,
4020 * inherit it from the new SSL_CTX as well. If however the context does
4021 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4022 * leave it unchanged.
4024 if ((ssl
->ctx
!= NULL
) &&
4025 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4026 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4027 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4028 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4031 SSL_CTX_up_ref(ctx
);
4032 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4038 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4040 return X509_STORE_set_default_paths(ctx
->cert_store
);
4043 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4045 X509_LOOKUP
*lookup
;
4047 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4050 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4052 /* Clear any errors if the default directory does not exist */
4058 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4060 X509_LOOKUP
*lookup
;
4062 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4066 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4068 /* Clear any errors if the default file does not exist */
4074 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4077 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4080 void SSL_set_info_callback(SSL
*ssl
,
4081 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4083 ssl
->info_callback
= cb
;
4087 * One compiler (Diab DCC) doesn't like argument names in returned function
4090 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4093 return ssl
->info_callback
;
4096 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4098 ssl
->verify_result
= arg
;
4101 long SSL_get_verify_result(const SSL
*ssl
)
4103 return ssl
->verify_result
;
4106 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4109 return sizeof(ssl
->s3
->client_random
);
4110 if (outlen
> sizeof(ssl
->s3
->client_random
))
4111 outlen
= sizeof(ssl
->s3
->client_random
);
4112 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4116 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4119 return sizeof(ssl
->s3
->server_random
);
4120 if (outlen
> sizeof(ssl
->s3
->server_random
))
4121 outlen
= sizeof(ssl
->s3
->server_random
);
4122 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4126 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4127 unsigned char *out
, size_t outlen
)
4130 return session
->master_key_length
;
4131 if (outlen
> session
->master_key_length
)
4132 outlen
= session
->master_key_length
;
4133 memcpy(out
, session
->master_key
, outlen
);
4137 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4140 if (len
> sizeof(sess
->master_key
))
4143 memcpy(sess
->master_key
, in
, len
);
4144 sess
->master_key_length
= len
;
4149 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4151 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4154 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4156 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4159 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4161 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4164 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4166 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4169 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4171 return ctx
->cert_store
;
4174 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4176 X509_STORE_free(ctx
->cert_store
);
4177 ctx
->cert_store
= store
;
4180 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4183 X509_STORE_up_ref(store
);
4184 SSL_CTX_set_cert_store(ctx
, store
);
4187 int SSL_want(const SSL
*s
)
4193 * \brief Set the callback for generating temporary DH keys.
4194 * \param ctx the SSL context.
4195 * \param dh the callback
4198 #ifndef OPENSSL_NO_DH
4199 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4200 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4203 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4206 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4209 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4213 #ifndef OPENSSL_NO_PSK
4214 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4216 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4217 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4220 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4221 if (identity_hint
!= NULL
) {
4222 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4223 if (ctx
->cert
->psk_identity_hint
== NULL
)
4226 ctx
->cert
->psk_identity_hint
= NULL
;
4230 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4235 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4236 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4239 OPENSSL_free(s
->cert
->psk_identity_hint
);
4240 if (identity_hint
!= NULL
) {
4241 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4242 if (s
->cert
->psk_identity_hint
== NULL
)
4245 s
->cert
->psk_identity_hint
= NULL
;
4249 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4251 if (s
== NULL
|| s
->session
== NULL
)
4253 return s
->session
->psk_identity_hint
;
4256 const char *SSL_get_psk_identity(const SSL
*s
)
4258 if (s
== NULL
|| s
->session
== NULL
)
4260 return s
->session
->psk_identity
;
4263 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4265 s
->psk_client_callback
= cb
;
4268 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4270 ctx
->psk_client_callback
= cb
;
4273 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4275 s
->psk_server_callback
= cb
;
4278 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4280 ctx
->psk_server_callback
= cb
;
4284 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4286 s
->psk_find_session_cb
= cb
;
4289 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4290 SSL_psk_find_session_cb_func cb
)
4292 ctx
->psk_find_session_cb
= cb
;
4295 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4297 s
->psk_use_session_cb
= cb
;
4300 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4301 SSL_psk_use_session_cb_func cb
)
4303 ctx
->psk_use_session_cb
= cb
;
4306 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4307 void (*cb
) (int write_p
, int version
,
4308 int content_type
, const void *buf
,
4309 size_t len
, SSL
*ssl
, void *arg
))
4311 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4314 void SSL_set_msg_callback(SSL
*ssl
,
4315 void (*cb
) (int write_p
, int version
,
4316 int content_type
, const void *buf
,
4317 size_t len
, SSL
*ssl
, void *arg
))
4319 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4322 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4323 int (*cb
) (SSL
*ssl
,
4327 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4328 (void (*)(void))cb
);
4331 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4332 int (*cb
) (SSL
*ssl
,
4333 int is_forward_secure
))
4335 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4336 (void (*)(void))cb
);
4339 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4340 size_t (*cb
) (SSL
*ssl
, int type
,
4341 size_t len
, void *arg
))
4343 ctx
->record_padding_cb
= cb
;
4346 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4348 ctx
->record_padding_arg
= arg
;
4351 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4353 return ctx
->record_padding_arg
;
4356 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4358 /* block size of 0 or 1 is basically no padding */
4359 if (block_size
== 1)
4360 ctx
->block_padding
= 0;
4361 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4362 ctx
->block_padding
= block_size
;
4368 void SSL_set_record_padding_callback(SSL
*ssl
,
4369 size_t (*cb
) (SSL
*ssl
, int type
,
4370 size_t len
, void *arg
))
4372 ssl
->record_padding_cb
= cb
;
4375 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4377 ssl
->record_padding_arg
= arg
;
4380 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4382 return ssl
->record_padding_arg
;
4385 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4387 /* block size of 0 or 1 is basically no padding */
4388 if (block_size
== 1)
4389 ssl
->block_padding
= 0;
4390 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4391 ssl
->block_padding
= block_size
;
4398 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4399 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4400 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4401 * Returns the newly allocated ctx;
4404 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4406 ssl_clear_hash_ctx(hash
);
4407 *hash
= EVP_MD_CTX_new();
4408 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4409 EVP_MD_CTX_free(*hash
);
4416 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4419 EVP_MD_CTX_free(*hash
);
4423 /* Retrieve handshake hashes */
4424 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4427 EVP_MD_CTX
*ctx
= NULL
;
4428 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4429 int hashleni
= EVP_MD_CTX_size(hdgst
);
4432 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4433 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4434 ERR_R_INTERNAL_ERROR
);
4438 ctx
= EVP_MD_CTX_new();
4442 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4443 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4444 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4445 ERR_R_INTERNAL_ERROR
);
4449 *hashlen
= hashleni
;
4453 EVP_MD_CTX_free(ctx
);
4457 int SSL_session_reused(SSL
*s
)
4462 int SSL_is_server(const SSL
*s
)
4467 #if OPENSSL_API_COMPAT < 0x10100000L
4468 void SSL_set_debug(SSL
*s
, int debug
)
4470 /* Old function was do-nothing anyway... */
4476 void SSL_set_security_level(SSL
*s
, int level
)
4478 s
->cert
->sec_level
= level
;
4481 int SSL_get_security_level(const SSL
*s
)
4483 return s
->cert
->sec_level
;
4486 void SSL_set_security_callback(SSL
*s
,
4487 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4488 int op
, int bits
, int nid
,
4489 void *other
, void *ex
))
4491 s
->cert
->sec_cb
= cb
;
4494 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4495 const SSL_CTX
*ctx
, int op
,
4496 int bits
, int nid
, void *other
,
4498 return s
->cert
->sec_cb
;
4501 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4503 s
->cert
->sec_ex
= ex
;
4506 void *SSL_get0_security_ex_data(const SSL
*s
)
4508 return s
->cert
->sec_ex
;
4511 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4513 ctx
->cert
->sec_level
= level
;
4516 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4518 return ctx
->cert
->sec_level
;
4521 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4522 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4523 int op
, int bits
, int nid
,
4524 void *other
, void *ex
))
4526 ctx
->cert
->sec_cb
= cb
;
4529 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4535 return ctx
->cert
->sec_cb
;
4538 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4540 ctx
->cert
->sec_ex
= ex
;
4543 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4545 return ctx
->cert
->sec_ex
;
4549 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4550 * can return unsigned long, instead of the generic long return value from the
4551 * control interface.
4553 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4555 return ctx
->options
;
4558 unsigned long SSL_get_options(const SSL
*s
)
4563 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4565 return ctx
->options
|= op
;
4568 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4570 return s
->options
|= op
;
4573 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4575 return ctx
->options
&= ~op
;
4578 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4580 return s
->options
&= ~op
;
4583 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4585 return s
->verified_chain
;
4588 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4590 #ifndef OPENSSL_NO_CT
4593 * Moves SCTs from the |src| stack to the |dst| stack.
4594 * The source of each SCT will be set to |origin|.
4595 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4597 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4599 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4600 sct_source_t origin
)
4606 *dst
= sk_SCT_new_null();
4608 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4613 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4614 if (SCT_set_source(sct
, origin
) != 1)
4617 if (sk_SCT_push(*dst
, sct
) <= 0)
4625 sk_SCT_push(src
, sct
); /* Put the SCT back */
4630 * Look for data collected during ServerHello and parse if found.
4631 * Returns the number of SCTs extracted.
4633 static int ct_extract_tls_extension_scts(SSL
*s
)
4635 int scts_extracted
= 0;
4637 if (s
->ext
.scts
!= NULL
) {
4638 const unsigned char *p
= s
->ext
.scts
;
4639 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4641 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4643 SCT_LIST_free(scts
);
4646 return scts_extracted
;
4650 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4651 * contains an SCT X509 extension. They will be stored in |s->scts|.
4653 * - The number of SCTs extracted, assuming an OCSP response exists.
4654 * - 0 if no OCSP response exists or it contains no SCTs.
4655 * - A negative integer if an error occurs.
4657 static int ct_extract_ocsp_response_scts(SSL
*s
)
4659 # ifndef OPENSSL_NO_OCSP
4660 int scts_extracted
= 0;
4661 const unsigned char *p
;
4662 OCSP_BASICRESP
*br
= NULL
;
4663 OCSP_RESPONSE
*rsp
= NULL
;
4664 STACK_OF(SCT
) *scts
= NULL
;
4667 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4670 p
= s
->ext
.ocsp
.resp
;
4671 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4675 br
= OCSP_response_get1_basic(rsp
);
4679 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4680 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4686 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4688 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4689 if (scts_extracted
< 0)
4693 SCT_LIST_free(scts
);
4694 OCSP_BASICRESP_free(br
);
4695 OCSP_RESPONSE_free(rsp
);
4696 return scts_extracted
;
4698 /* Behave as if no OCSP response exists */
4704 * Attempts to extract SCTs from the peer certificate.
4705 * Return the number of SCTs extracted, or a negative integer if an error
4708 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4710 int scts_extracted
= 0;
4711 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4714 STACK_OF(SCT
) *scts
=
4715 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4718 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4720 SCT_LIST_free(scts
);
4723 return scts_extracted
;
4727 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4728 * response (if it exists) and X509v3 extensions in the certificate.
4729 * Returns NULL if an error occurs.
4731 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4733 if (!s
->scts_parsed
) {
4734 if (ct_extract_tls_extension_scts(s
) < 0 ||
4735 ct_extract_ocsp_response_scts(s
) < 0 ||
4736 ct_extract_x509v3_extension_scts(s
) < 0)
4746 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4747 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4752 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4753 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4755 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4758 for (i
= 0; i
< count
; ++i
) {
4759 SCT
*sct
= sk_SCT_value(scts
, i
);
4760 int status
= SCT_get_validation_status(sct
);
4762 if (status
== SCT_VALIDATION_STATUS_VALID
)
4765 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4769 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4773 * Since code exists that uses the custom extension handler for CT, look
4774 * for this and throw an error if they have already registered to use CT.
4776 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4777 TLSEXT_TYPE_signed_certificate_timestamp
))
4779 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4780 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4784 if (callback
!= NULL
) {
4786 * If we are validating CT, then we MUST accept SCTs served via OCSP
4788 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4792 s
->ct_validation_callback
= callback
;
4793 s
->ct_validation_callback_arg
= arg
;
4798 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4799 ssl_ct_validation_cb callback
, void *arg
)
4802 * Since code exists that uses the custom extension handler for CT, look for
4803 * this and throw an error if they have already registered to use CT.
4805 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4806 TLSEXT_TYPE_signed_certificate_timestamp
))
4808 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4809 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4813 ctx
->ct_validation_callback
= callback
;
4814 ctx
->ct_validation_callback_arg
= arg
;
4818 int SSL_ct_is_enabled(const SSL
*s
)
4820 return s
->ct_validation_callback
!= NULL
;
4823 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4825 return ctx
->ct_validation_callback
!= NULL
;
4828 int ssl_validate_ct(SSL
*s
)
4831 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4833 SSL_DANE
*dane
= &s
->dane
;
4834 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4835 const STACK_OF(SCT
) *scts
;
4838 * If no callback is set, the peer is anonymous, or its chain is invalid,
4839 * skip SCT validation - just return success. Applications that continue
4840 * handshakes without certificates, with unverified chains, or pinned leaf
4841 * certificates are outside the scope of the WebPKI and CT.
4843 * The above exclusions notwithstanding the vast majority of peers will
4844 * have rather ordinary certificate chains validated by typical
4845 * applications that perform certificate verification and therefore will
4846 * process SCTs when enabled.
4848 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4849 s
->verify_result
!= X509_V_OK
||
4850 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4854 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4855 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4857 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4858 switch (dane
->mtlsa
->usage
) {
4859 case DANETLS_USAGE_DANE_TA
:
4860 case DANETLS_USAGE_DANE_EE
:
4865 ctx
= CT_POLICY_EVAL_CTX_new();
4867 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4868 ERR_R_MALLOC_FAILURE
);
4872 issuer
= sk_X509_value(s
->verified_chain
, 1);
4873 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4874 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4875 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4876 CT_POLICY_EVAL_CTX_set_time(
4877 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4879 scts
= SSL_get0_peer_scts(s
);
4882 * This function returns success (> 0) only when all the SCTs are valid, 0
4883 * when some are invalid, and < 0 on various internal errors (out of
4884 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4885 * reason to abort the handshake, that decision is up to the callback.
4886 * Therefore, we error out only in the unexpected case that the return
4887 * value is negative.
4889 * XXX: One might well argue that the return value of this function is an
4890 * unfortunate design choice. Its job is only to determine the validation
4891 * status of each of the provided SCTs. So long as it correctly separates
4892 * the wheat from the chaff it should return success. Failure in this case
4893 * ought to correspond to an inability to carry out its duties.
4895 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4896 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4897 SSL_R_SCT_VERIFICATION_FAILED
);
4901 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4903 ret
= 0; /* This function returns 0 on failure */
4905 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4906 SSL_R_CALLBACK_FAILED
);
4909 CT_POLICY_EVAL_CTX_free(ctx
);
4911 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4912 * failure return code here. Also the application may wish the complete
4913 * the handshake, and then disconnect cleanly at a higher layer, after
4914 * checking the verification status of the completed connection.
4916 * We therefore force a certificate verification failure which will be
4917 * visible via SSL_get_verify_result() and cached as part of any resumed
4920 * Note: the permissive callback is for information gathering only, always
4921 * returns success, and does not affect verification status. Only the
4922 * strict callback or a custom application-specified callback can trigger
4923 * connection failure or record a verification error.
4926 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4930 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4932 switch (validation_mode
) {
4934 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4936 case SSL_CT_VALIDATION_PERMISSIVE
:
4937 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4938 case SSL_CT_VALIDATION_STRICT
:
4939 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4943 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4945 switch (validation_mode
) {
4947 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4949 case SSL_CT_VALIDATION_PERMISSIVE
:
4950 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4951 case SSL_CT_VALIDATION_STRICT
:
4952 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4956 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4958 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4961 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4963 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4966 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4968 CTLOG_STORE_free(ctx
->ctlog_store
);
4969 ctx
->ctlog_store
= logs
;
4972 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4974 return ctx
->ctlog_store
;
4977 #endif /* OPENSSL_NO_CT */
4979 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4982 c
->client_hello_cb
= cb
;
4983 c
->client_hello_cb_arg
= arg
;
4986 int SSL_client_hello_isv2(SSL
*s
)
4988 if (s
->clienthello
== NULL
)
4990 return s
->clienthello
->isv2
;
4993 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4995 if (s
->clienthello
== NULL
)
4997 return s
->clienthello
->legacy_version
;
5000 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5002 if (s
->clienthello
== NULL
)
5005 *out
= s
->clienthello
->random
;
5006 return SSL3_RANDOM_SIZE
;
5009 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5011 if (s
->clienthello
== NULL
)
5014 *out
= s
->clienthello
->session_id
;
5015 return s
->clienthello
->session_id_len
;
5018 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5020 if (s
->clienthello
== NULL
)
5023 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5024 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5027 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5029 if (s
->clienthello
== NULL
)
5032 *out
= s
->clienthello
->compressions
;
5033 return s
->clienthello
->compressions_len
;
5036 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5042 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5044 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5045 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5049 present
= OPENSSL_malloc(sizeof(*present
) * num
);
5050 if (present
== NULL
)
5052 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5053 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5055 if (ext
->received_order
>= num
)
5057 present
[ext
->received_order
] = ext
->type
;
5064 OPENSSL_free(present
);
5068 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5074 if (s
->clienthello
== NULL
)
5076 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5077 r
= s
->clienthello
->pre_proc_exts
+ i
;
5078 if (r
->present
&& r
->type
== type
) {
5080 *out
= PACKET_data(&r
->data
);
5082 *outlen
= PACKET_remaining(&r
->data
);
5089 int SSL_free_buffers(SSL
*ssl
)
5091 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5093 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5096 RECORD_LAYER_release(rl
);
5100 int SSL_alloc_buffers(SSL
*ssl
)
5102 return ssl3_setup_buffers(ssl
);
5105 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5107 ctx
->keylog_callback
= cb
;
5110 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5112 return ctx
->keylog_callback
;
5115 static int nss_keylog_int(const char *prefix
,
5117 const uint8_t *parameter_1
,
5118 size_t parameter_1_len
,
5119 const uint8_t *parameter_2
,
5120 size_t parameter_2_len
)
5123 char *cursor
= NULL
;
5128 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
5131 * Our output buffer will contain the following strings, rendered with
5132 * space characters in between, terminated by a NULL character: first the
5133 * prefix, then the first parameter, then the second parameter. The
5134 * meaning of each parameter depends on the specific key material being
5135 * logged. Note that the first and second parameters are encoded in
5136 * hexadecimal, so we need a buffer that is twice their lengths.
5138 prefix_len
= strlen(prefix
);
5139 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
5140 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5141 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5142 ERR_R_MALLOC_FAILURE
);
5146 strcpy(cursor
, prefix
);
5147 cursor
+= prefix_len
;
5150 for (i
= 0; i
< parameter_1_len
; i
++) {
5151 sprintf(cursor
, "%02x", parameter_1
[i
]);
5156 for (i
= 0; i
< parameter_2_len
; i
++) {
5157 sprintf(cursor
, "%02x", parameter_2
[i
]);
5162 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5168 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5169 const uint8_t *encrypted_premaster
,
5170 size_t encrypted_premaster_len
,
5171 const uint8_t *premaster
,
5172 size_t premaster_len
)
5174 if (encrypted_premaster_len
< 8) {
5175 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5176 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5180 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5181 return nss_keylog_int("RSA",
5183 encrypted_premaster
,
5189 int ssl_log_secret(SSL
*ssl
,
5191 const uint8_t *secret
,
5194 return nss_keylog_int(label
,
5196 ssl
->s3
->client_random
,
5202 #define SSLV2_CIPHER_LEN 3
5204 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5208 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5210 if (PACKET_remaining(cipher_suites
) == 0) {
5211 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5212 SSL_R_NO_CIPHERS_SPECIFIED
);
5216 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5217 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5218 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5222 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5223 s
->s3
->tmp
.ciphers_raw
= NULL
;
5224 s
->s3
->tmp
.ciphers_rawlen
= 0;
5227 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5228 PACKET sslv2ciphers
= *cipher_suites
;
5229 unsigned int leadbyte
;
5233 * We store the raw ciphers list in SSLv3+ format so we need to do some
5234 * preprocessing to convert the list first. If there are any SSLv2 only
5235 * ciphersuites with a non-zero leading byte then we are going to
5236 * slightly over allocate because we won't store those. But that isn't a
5239 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5240 s
->s3
->tmp
.ciphers_raw
= raw
;
5242 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5243 ERR_R_MALLOC_FAILURE
);
5246 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5247 PACKET_remaining(&sslv2ciphers
) > 0;
5248 raw
+= TLS_CIPHER_LEN
) {
5249 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5251 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5254 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5255 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5257 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5258 s
->s3
->tmp
.ciphers_raw
= NULL
;
5259 s
->s3
->tmp
.ciphers_rawlen
= 0;
5263 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5265 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5266 &s
->s3
->tmp
.ciphers_rawlen
)) {
5267 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5268 ERR_R_INTERNAL_ERROR
);
5274 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5275 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5276 STACK_OF(SSL_CIPHER
) **scsvs
)
5280 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5282 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5285 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5286 STACK_OF(SSL_CIPHER
) **skp
,
5287 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5288 int sslv2format
, int fatal
)
5290 const SSL_CIPHER
*c
;
5291 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5292 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5294 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5295 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5297 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5299 if (PACKET_remaining(cipher_suites
) == 0) {
5301 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5302 SSL_R_NO_CIPHERS_SPECIFIED
);
5304 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5308 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5310 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5311 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5313 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5314 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5318 sk
= sk_SSL_CIPHER_new_null();
5319 scsvs
= sk_SSL_CIPHER_new_null();
5320 if (sk
== NULL
|| scsvs
== NULL
) {
5322 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5323 ERR_R_MALLOC_FAILURE
);
5325 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5329 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5331 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5332 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5333 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5335 if (sslv2format
&& cipher
[0] != '\0')
5338 /* For SSLv2-compat, ignore leading 0-byte. */
5339 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5341 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5342 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5344 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5345 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5347 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5352 if (PACKET_remaining(cipher_suites
) > 0) {
5354 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5357 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5364 sk_SSL_CIPHER_free(sk
);
5365 if (scsvs_out
!= NULL
)
5368 sk_SSL_CIPHER_free(scsvs
);
5371 sk_SSL_CIPHER_free(sk
);
5372 sk_SSL_CIPHER_free(scsvs
);
5376 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5378 ctx
->max_early_data
= max_early_data
;
5383 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5385 return ctx
->max_early_data
;
5388 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5390 s
->max_early_data
= max_early_data
;
5395 uint32_t SSL_get_max_early_data(const SSL
*s
)
5397 return s
->max_early_data
;
5400 int ssl_randbytes(SSL
*s
, unsigned char *rnd
, size_t size
)
5402 if (s
->drbg
!= NULL
) {
5404 * Currently, it's the duty of the caller to serialize the generate
5405 * requests to the DRBG. So formally we have to check whether
5406 * s->drbg->lock != NULL and take the lock if this is the case.
5407 * However, this DRBG is unique to a given SSL object, and we already
5408 * require that SSL objects are only accessed by a single thread at
5409 * a given time. Also, SSL DRBGs have no child DRBG, so there is
5410 * no risk that this DRBG is accessed by a child DRBG in parallel
5411 * for reseeding. As such, we can rely on the application's
5412 * serialization of SSL accesses for the needed concurrency protection
5415 return RAND_DRBG_bytes(s
->drbg
, rnd
, size
);
5419 return RAND_bytes(rnd
, size
);
5422 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5424 /* Return any active Max Fragment Len extension */
5425 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5426 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5428 /* return current SSL connection setting */
5429 return ssl
->max_send_fragment
;
5432 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5434 /* Return a value regarding an active Max Fragment Len extension */
5435 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5436 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5437 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5439 /* else limit |split_send_fragment| to current |max_send_fragment| */
5440 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5441 return ssl
->max_send_fragment
;
5443 /* return current SSL connection setting */
5444 return ssl
->split_send_fragment
;
5447 int SSL_stateless(SSL
*s
)
5451 /* Ensure there is no state left over from a previous invocation */
5457 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5458 ret
= SSL_accept(s
);
5459 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5461 if (ret
> 0 && s
->ext
.cookieok
)
5464 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5470 void SSL_force_post_handshake_auth(SSL
*ssl
)
5472 ssl
->pha_forced
= 1;
5475 int SSL_verify_client_post_handshake(SSL
*ssl
)
5477 if (!SSL_IS_TLS13(ssl
)) {
5478 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5482 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5486 if (!SSL_is_init_finished(ssl
)) {
5487 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5491 switch (ssl
->post_handshake_auth
) {
5493 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5496 case SSL_PHA_EXT_SENT
:
5497 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5499 case SSL_PHA_EXT_RECEIVED
:
5501 case SSL_PHA_REQUEST_PENDING
:
5502 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5504 case SSL_PHA_REQUESTED
:
5505 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5509 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5511 /* checks verify_mode and algorithm_auth */
5512 if (!send_certificate_request(ssl
)) {
5513 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5514 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5518 ossl_statem_set_in_init(ssl
, 1);
5522 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5523 SSL_CTX_generate_session_ticket_fn gen_cb
,
5524 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5527 ctx
->generate_ticket_cb
= gen_cb
;
5528 ctx
->decrypt_ticket_cb
= dec_cb
;
5529 ctx
->ticket_cb_data
= arg
;