2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the OpenSSL license (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
14 #include <openssl/objects.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/rand.h>
17 #include <openssl/rand_drbg.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include "internal/cryptlib.h"
24 #include "internal/refcount.h"
26 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
28 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
)
33 return ssl_undefined_function(ssl
);
36 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
42 return ssl_undefined_function(ssl
);
45 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
46 unsigned char *s
, size_t t
, size_t *u
)
52 return ssl_undefined_function(ssl
);
55 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
58 return ssl_undefined_function(ssl
);
61 static size_t ssl_undefined_function_5(SSL
*ssl
, const char *r
, size_t s
,
67 return ssl_undefined_function(ssl
);
70 static int ssl_undefined_function_6(int r
)
73 return ssl_undefined_function(NULL
);
76 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
77 const char *t
, size_t u
,
78 const unsigned char *v
, size_t w
, int x
)
87 return ssl_undefined_function(ssl
);
90 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
91 ssl_undefined_function_1
,
92 ssl_undefined_function_2
,
93 ssl_undefined_function
,
94 ssl_undefined_function_3
,
95 ssl_undefined_function_4
,
96 ssl_undefined_function_5
,
97 NULL
, /* client_finished_label */
98 0, /* client_finished_label_len */
99 NULL
, /* server_finished_label */
100 0, /* server_finished_label_len */
101 ssl_undefined_function_6
,
102 ssl_undefined_function_7
,
105 struct ssl_async_args
{
109 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
111 int (*func_read
) (SSL
*, void *, size_t, size_t *);
112 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
113 int (*func_other
) (SSL
*);
117 static const struct {
123 DANETLS_MATCHING_FULL
, 0, NID_undef
126 DANETLS_MATCHING_2256
, 1, NID_sha256
129 DANETLS_MATCHING_2512
, 2, NID_sha512
133 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
135 const EVP_MD
**mdevp
;
137 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
138 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
141 if (dctx
->mdevp
!= NULL
)
144 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
145 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
147 if (mdord
== NULL
|| mdevp
== NULL
) {
150 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
154 /* Install default entries */
155 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
158 if (dane_mds
[i
].nid
== NID_undef
||
159 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
161 mdevp
[dane_mds
[i
].mtype
] = md
;
162 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
172 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
174 OPENSSL_free(dctx
->mdevp
);
177 OPENSSL_free(dctx
->mdord
);
182 static void tlsa_free(danetls_record
*t
)
186 OPENSSL_free(t
->data
);
187 EVP_PKEY_free(t
->spki
);
191 static void dane_final(SSL_DANE
*dane
)
193 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
196 sk_X509_pop_free(dane
->certs
, X509_free
);
199 X509_free(dane
->mcert
);
207 * dane_copy - Copy dane configuration, sans verification state.
209 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
214 if (!DANETLS_ENABLED(&from
->dane
))
217 num
= sk_danetls_record_num(from
->dane
.trecs
);
218 dane_final(&to
->dane
);
219 to
->dane
.flags
= from
->dane
.flags
;
220 to
->dane
.dctx
= &to
->ctx
->dane
;
221 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
223 if (to
->dane
.trecs
== NULL
) {
224 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
228 for (i
= 0; i
< num
; ++i
) {
229 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
231 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
232 t
->data
, t
->dlen
) <= 0)
238 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
239 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
243 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
244 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
248 if (mtype
> dctx
->mdmax
) {
249 const EVP_MD
**mdevp
;
251 int n
= ((int)mtype
) + 1;
253 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
255 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
260 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
262 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
267 /* Zero-fill any gaps */
268 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
276 dctx
->mdevp
[mtype
] = md
;
277 /* Coerce ordinal of disabled matching types to 0 */
278 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
283 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
285 if (mtype
> dane
->dctx
->mdmax
)
287 return dane
->dctx
->mdevp
[mtype
];
290 static int dane_tlsa_add(SSL_DANE
*dane
,
293 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
296 const EVP_MD
*md
= NULL
;
297 int ilen
= (int)dlen
;
301 if (dane
->trecs
== NULL
) {
302 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
306 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
307 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
311 if (usage
> DANETLS_USAGE_LAST
) {
312 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
316 if (selector
> DANETLS_SELECTOR_LAST
) {
317 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
321 if (mtype
!= DANETLS_MATCHING_FULL
) {
322 md
= tlsa_md_get(dane
, mtype
);
324 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
329 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
330 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
334 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
338 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
339 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
344 t
->selector
= selector
;
346 t
->data
= OPENSSL_malloc(dlen
);
347 if (t
->data
== NULL
) {
349 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
352 memcpy(t
->data
, data
, dlen
);
355 /* Validate and cache full certificate or public key */
356 if (mtype
== DANETLS_MATCHING_FULL
) {
357 const unsigned char *p
= data
;
359 EVP_PKEY
*pkey
= NULL
;
362 case DANETLS_SELECTOR_CERT
:
363 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
364 dlen
!= (size_t)(p
- data
)) {
366 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
369 if (X509_get0_pubkey(cert
) == NULL
) {
371 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
375 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
381 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
382 * records that contain full certificates of trust-anchors that are
383 * not present in the wire chain. For usage PKIX-TA(0), we augment
384 * the chain with untrusted Full(0) certificates from DNS, in case
385 * they are missing from the chain.
387 if ((dane
->certs
== NULL
&&
388 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
389 !sk_X509_push(dane
->certs
, cert
)) {
390 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
397 case DANETLS_SELECTOR_SPKI
:
398 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
399 dlen
!= (size_t)(p
- data
)) {
401 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
406 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
407 * records that contain full bare keys of trust-anchors that are
408 * not present in the wire chain.
410 if (usage
== DANETLS_USAGE_DANE_TA
)
419 * Find the right insertion point for the new record.
421 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
422 * they can be processed first, as they require no chain building, and no
423 * expiration or hostname checks. Because DANE-EE(3) is numerically
424 * largest, this is accomplished via descending sort by "usage".
426 * We also sort in descending order by matching ordinal to simplify
427 * the implementation of digest agility in the verification code.
429 * The choice of order for the selector is not significant, so we
430 * use the same descending order for consistency.
432 num
= sk_danetls_record_num(dane
->trecs
);
433 for (i
= 0; i
< num
; ++i
) {
434 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
436 if (rec
->usage
> usage
)
438 if (rec
->usage
< usage
)
440 if (rec
->selector
> selector
)
442 if (rec
->selector
< selector
)
444 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
449 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
451 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
454 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
460 * Return 0 if there is only one version configured and it was disabled
461 * at configure time. Return 1 otherwise.
463 static int ssl_check_allowed_versions(int min_version
, int max_version
)
465 int minisdtls
= 0, maxisdtls
= 0;
467 /* Figure out if we're doing DTLS versions or TLS versions */
468 if (min_version
== DTLS1_BAD_VER
469 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
471 if (max_version
== DTLS1_BAD_VER
472 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
474 /* A wildcard version of 0 could be DTLS or TLS. */
475 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
476 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
477 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
481 if (minisdtls
|| maxisdtls
) {
482 /* Do DTLS version checks. */
483 if (min_version
== 0)
484 /* Ignore DTLS1_BAD_VER */
485 min_version
= DTLS1_VERSION
;
486 if (max_version
== 0)
487 max_version
= DTLS1_2_VERSION
;
488 #ifdef OPENSSL_NO_DTLS1_2
489 if (max_version
== DTLS1_2_VERSION
)
490 max_version
= DTLS1_VERSION
;
492 #ifdef OPENSSL_NO_DTLS1
493 if (min_version
== DTLS1_VERSION
)
494 min_version
= DTLS1_2_VERSION
;
496 /* Done massaging versions; do the check. */
498 #ifdef OPENSSL_NO_DTLS1
499 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
500 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
502 #ifdef OPENSSL_NO_DTLS1_2
503 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
504 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
509 /* Regular TLS version checks. */
510 if (min_version
== 0)
511 min_version
= SSL3_VERSION
;
512 if (max_version
== 0)
513 max_version
= TLS1_3_VERSION
;
514 #ifdef OPENSSL_NO_TLS1_3
515 if (max_version
== TLS1_3_VERSION
)
516 max_version
= TLS1_2_VERSION
;
518 #ifdef OPENSSL_NO_TLS1_2
519 if (max_version
== TLS1_2_VERSION
)
520 max_version
= TLS1_1_VERSION
;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (max_version
== TLS1_1_VERSION
)
524 max_version
= TLS1_VERSION
;
526 #ifdef OPENSSL_NO_TLS1
527 if (max_version
== TLS1_VERSION
)
528 max_version
= SSL3_VERSION
;
530 #ifdef OPENSSL_NO_SSL3
531 if (min_version
== SSL3_VERSION
)
532 min_version
= TLS1_VERSION
;
534 #ifdef OPENSSL_NO_TLS1
535 if (min_version
== TLS1_VERSION
)
536 min_version
= TLS1_1_VERSION
;
538 #ifdef OPENSSL_NO_TLS1_1
539 if (min_version
== TLS1_1_VERSION
)
540 min_version
= TLS1_2_VERSION
;
542 #ifdef OPENSSL_NO_TLS1_2
543 if (min_version
== TLS1_2_VERSION
)
544 min_version
= TLS1_3_VERSION
;
546 /* Done massaging versions; do the check. */
548 #ifdef OPENSSL_NO_SSL3
549 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
551 #ifdef OPENSSL_NO_TLS1
552 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
554 #ifdef OPENSSL_NO_TLS1_1
555 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
557 #ifdef OPENSSL_NO_TLS1_2
558 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
560 #ifdef OPENSSL_NO_TLS1_3
561 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
569 static void clear_ciphers(SSL
*s
)
571 /* clear the current cipher */
572 ssl_clear_cipher_ctx(s
);
573 ssl_clear_hash_ctx(&s
->read_hash
);
574 ssl_clear_hash_ctx(&s
->write_hash
);
577 int SSL_clear(SSL
*s
)
579 if (s
->method
== NULL
) {
580 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
584 if (ssl_clear_bad_session(s
)) {
585 SSL_SESSION_free(s
->session
);
588 SSL_SESSION_free(s
->psksession
);
589 s
->psksession
= NULL
;
590 OPENSSL_free(s
->psksession_id
);
591 s
->psksession_id
= NULL
;
592 s
->psksession_id_len
= 0;
593 s
->hello_retry_request
= 0;
600 if (s
->renegotiate
) {
601 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
605 ossl_statem_clear(s
);
607 s
->version
= s
->method
->version
;
608 s
->client_version
= s
->version
;
609 s
->rwstate
= SSL_NOTHING
;
611 BUF_MEM_free(s
->init_buf
);
616 s
->key_update
= SSL_KEY_UPDATE_NONE
;
618 EVP_MD_CTX_free(s
->pha_dgst
);
621 /* Reset DANE verification result state */
624 X509_free(s
->dane
.mcert
);
625 s
->dane
.mcert
= NULL
;
626 s
->dane
.mtlsa
= NULL
;
628 /* Clear the verification result peername */
629 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
632 * Check to see if we were changed into a different method, if so, revert
635 if (s
->method
!= s
->ctx
->method
) {
636 s
->method
->ssl_free(s
);
637 s
->method
= s
->ctx
->method
;
638 if (!s
->method
->ssl_new(s
))
641 if (!s
->method
->ssl_clear(s
))
645 RECORD_LAYER_clear(&s
->rlayer
);
650 /** Used to change an SSL_CTXs default SSL method type */
651 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
653 STACK_OF(SSL_CIPHER
) *sk
;
657 sk
= ssl_create_cipher_list(ctx
->method
,
658 ctx
->tls13_ciphersuites
,
660 &(ctx
->cipher_list_by_id
),
661 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
662 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
663 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
669 SSL
*SSL_new(SSL_CTX
*ctx
)
674 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
677 if (ctx
->method
== NULL
) {
678 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
682 s
= OPENSSL_zalloc(sizeof(*s
));
687 s
->lock
= CRYPTO_THREAD_lock_new();
688 if (s
->lock
== NULL
) {
694 RECORD_LAYER_init(&s
->rlayer
, s
);
696 s
->options
= ctx
->options
;
697 s
->dane
.flags
= ctx
->dane
.flags
;
698 s
->min_proto_version
= ctx
->min_proto_version
;
699 s
->max_proto_version
= ctx
->max_proto_version
;
701 s
->max_cert_list
= ctx
->max_cert_list
;
702 s
->max_early_data
= ctx
->max_early_data
;
703 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
704 s
->num_tickets
= ctx
->num_tickets
;
706 /* Shallow copy of the ciphersuites stack */
707 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
708 if (s
->tls13_ciphersuites
== NULL
)
712 * Earlier library versions used to copy the pointer to the CERT, not
713 * its contents; only when setting new parameters for the per-SSL
714 * copy, ssl_cert_new would be called (and the direct reference to
715 * the per-SSL_CTX settings would be lost, but those still were
716 * indirectly accessed for various purposes, and for that reason they
717 * used to be known as s->ctx->default_cert). Now we don't look at the
718 * SSL_CTX's CERT after having duplicated it once.
720 s
->cert
= ssl_cert_dup(ctx
->cert
);
724 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
725 s
->msg_callback
= ctx
->msg_callback
;
726 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
727 s
->verify_mode
= ctx
->verify_mode
;
728 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
729 s
->record_padding_cb
= ctx
->record_padding_cb
;
730 s
->record_padding_arg
= ctx
->record_padding_arg
;
731 s
->block_padding
= ctx
->block_padding
;
732 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
733 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
735 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
736 s
->verify_callback
= ctx
->default_verify_callback
;
737 s
->generate_session_id
= ctx
->generate_session_id
;
739 s
->param
= X509_VERIFY_PARAM_new();
740 if (s
->param
== NULL
)
742 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
743 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
745 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
746 s
->max_send_fragment
= ctx
->max_send_fragment
;
747 s
->split_send_fragment
= ctx
->split_send_fragment
;
748 s
->max_pipelines
= ctx
->max_pipelines
;
749 if (s
->max_pipelines
> 1)
750 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
751 if (ctx
->default_read_buf_len
> 0)
752 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
757 s
->ext
.debug_arg
= NULL
;
758 s
->ext
.ticket_expected
= 0;
759 s
->ext
.status_type
= ctx
->ext
.status_type
;
760 s
->ext
.status_expected
= 0;
761 s
->ext
.ocsp
.ids
= NULL
;
762 s
->ext
.ocsp
.exts
= NULL
;
763 s
->ext
.ocsp
.resp
= NULL
;
764 s
->ext
.ocsp
.resp_len
= 0;
766 s
->session_ctx
= ctx
;
767 #ifndef OPENSSL_NO_EC
768 if (ctx
->ext
.ecpointformats
) {
769 s
->ext
.ecpointformats
=
770 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
771 ctx
->ext
.ecpointformats_len
);
772 if (!s
->ext
.ecpointformats
)
774 s
->ext
.ecpointformats_len
=
775 ctx
->ext
.ecpointformats_len
;
777 if (ctx
->ext
.supportedgroups
) {
778 s
->ext
.supportedgroups
=
779 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
780 ctx
->ext
.supportedgroups_len
781 * sizeof(*ctx
->ext
.supportedgroups
));
782 if (!s
->ext
.supportedgroups
)
784 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
787 #ifndef OPENSSL_NO_NEXTPROTONEG
791 if (s
->ctx
->ext
.alpn
) {
792 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
793 if (s
->ext
.alpn
== NULL
)
795 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
796 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
799 s
->verified_chain
= NULL
;
800 s
->verify_result
= X509_V_OK
;
802 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
803 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
805 s
->method
= ctx
->method
;
807 s
->key_update
= SSL_KEY_UPDATE_NONE
;
809 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
810 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
812 if (!s
->method
->ssl_new(s
))
815 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
820 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
823 #ifndef OPENSSL_NO_PSK
824 s
->psk_client_callback
= ctx
->psk_client_callback
;
825 s
->psk_server_callback
= ctx
->psk_server_callback
;
827 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
828 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
832 #ifndef OPENSSL_NO_CT
833 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
834 ctx
->ct_validation_callback_arg
))
841 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
845 int SSL_is_dtls(const SSL
*s
)
847 return SSL_IS_DTLS(s
) ? 1 : 0;
850 int SSL_up_ref(SSL
*s
)
854 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
857 REF_PRINT_COUNT("SSL", s
);
858 REF_ASSERT_ISNT(i
< 2);
859 return ((i
> 1) ? 1 : 0);
862 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
863 unsigned int sid_ctx_len
)
865 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
866 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
867 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
870 ctx
->sid_ctx_length
= sid_ctx_len
;
871 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
876 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
877 unsigned int sid_ctx_len
)
879 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
880 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
881 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
884 ssl
->sid_ctx_length
= sid_ctx_len
;
885 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
890 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
892 CRYPTO_THREAD_write_lock(ctx
->lock
);
893 ctx
->generate_session_id
= cb
;
894 CRYPTO_THREAD_unlock(ctx
->lock
);
898 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
900 CRYPTO_THREAD_write_lock(ssl
->lock
);
901 ssl
->generate_session_id
= cb
;
902 CRYPTO_THREAD_unlock(ssl
->lock
);
906 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
910 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
911 * we can "construct" a session to give us the desired check - i.e. to
912 * find if there's a session in the hash table that would conflict with
913 * any new session built out of this id/id_len and the ssl_version in use
918 if (id_len
> sizeof(r
.session_id
))
921 r
.ssl_version
= ssl
->version
;
922 r
.session_id_length
= id_len
;
923 memcpy(r
.session_id
, id
, id_len
);
925 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
926 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
927 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
931 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
933 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
936 int SSL_set_purpose(SSL
*s
, int purpose
)
938 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
941 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
943 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
946 int SSL_set_trust(SSL
*s
, int trust
)
948 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
951 int SSL_set1_host(SSL
*s
, const char *hostname
)
953 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
956 int SSL_add1_host(SSL
*s
, const char *hostname
)
958 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
961 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
963 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
966 const char *SSL_get0_peername(SSL
*s
)
968 return X509_VERIFY_PARAM_get0_peername(s
->param
);
971 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
973 return dane_ctx_enable(&ctx
->dane
);
976 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
978 unsigned long orig
= ctx
->dane
.flags
;
980 ctx
->dane
.flags
|= flags
;
984 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
986 unsigned long orig
= ctx
->dane
.flags
;
988 ctx
->dane
.flags
&= ~flags
;
992 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
994 SSL_DANE
*dane
= &s
->dane
;
996 if (s
->ctx
->dane
.mdmax
== 0) {
997 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1000 if (dane
->trecs
!= NULL
) {
1001 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1006 * Default SNI name. This rejects empty names, while set1_host below
1007 * accepts them and disables host name checks. To avoid side-effects with
1008 * invalid input, set the SNI name first.
1010 if (s
->ext
.hostname
== NULL
) {
1011 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1012 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1017 /* Primary RFC6125 reference identifier */
1018 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1019 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1025 dane
->dctx
= &s
->ctx
->dane
;
1026 dane
->trecs
= sk_danetls_record_new_null();
1028 if (dane
->trecs
== NULL
) {
1029 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1035 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1037 unsigned long orig
= ssl
->dane
.flags
;
1039 ssl
->dane
.flags
|= flags
;
1043 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1045 unsigned long orig
= ssl
->dane
.flags
;
1047 ssl
->dane
.flags
&= ~flags
;
1051 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1053 SSL_DANE
*dane
= &s
->dane
;
1055 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1059 *mcert
= dane
->mcert
;
1061 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1066 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1067 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1069 SSL_DANE
*dane
= &s
->dane
;
1071 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1075 *usage
= dane
->mtlsa
->usage
;
1077 *selector
= dane
->mtlsa
->selector
;
1079 *mtype
= dane
->mtlsa
->mtype
;
1081 *data
= dane
->mtlsa
->data
;
1083 *dlen
= dane
->mtlsa
->dlen
;
1088 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1093 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1094 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1096 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1099 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1102 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1105 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1107 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1110 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1112 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1115 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1120 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1125 void SSL_certs_clear(SSL
*s
)
1127 ssl_cert_clear_certs(s
->cert
);
1130 void SSL_free(SSL
*s
)
1136 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1137 REF_PRINT_COUNT("SSL", s
);
1140 REF_ASSERT_ISNT(i
< 0);
1142 X509_VERIFY_PARAM_free(s
->param
);
1143 dane_final(&s
->dane
);
1144 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1146 /* Ignore return value */
1147 ssl_free_wbio_buffer(s
);
1149 BIO_free_all(s
->wbio
);
1150 BIO_free_all(s
->rbio
);
1152 BUF_MEM_free(s
->init_buf
);
1154 /* add extra stuff */
1155 sk_SSL_CIPHER_free(s
->cipher_list
);
1156 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1157 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1159 /* Make the next call work :-) */
1160 if (s
->session
!= NULL
) {
1161 ssl_clear_bad_session(s
);
1162 SSL_SESSION_free(s
->session
);
1164 SSL_SESSION_free(s
->psksession
);
1165 OPENSSL_free(s
->psksession_id
);
1169 ssl_cert_free(s
->cert
);
1170 /* Free up if allocated */
1172 OPENSSL_free(s
->ext
.hostname
);
1173 SSL_CTX_free(s
->session_ctx
);
1174 #ifndef OPENSSL_NO_EC
1175 OPENSSL_free(s
->ext
.ecpointformats
);
1176 OPENSSL_free(s
->ext
.supportedgroups
);
1177 #endif /* OPENSSL_NO_EC */
1178 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1179 #ifndef OPENSSL_NO_OCSP
1180 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1182 #ifndef OPENSSL_NO_CT
1183 SCT_LIST_free(s
->scts
);
1184 OPENSSL_free(s
->ext
.scts
);
1186 OPENSSL_free(s
->ext
.ocsp
.resp
);
1187 OPENSSL_free(s
->ext
.alpn
);
1188 OPENSSL_free(s
->ext
.tls13_cookie
);
1189 OPENSSL_free(s
->clienthello
);
1190 OPENSSL_free(s
->pha_context
);
1191 EVP_MD_CTX_free(s
->pha_dgst
);
1193 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1195 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1197 if (s
->method
!= NULL
)
1198 s
->method
->ssl_free(s
);
1200 RECORD_LAYER_release(&s
->rlayer
);
1202 SSL_CTX_free(s
->ctx
);
1204 ASYNC_WAIT_CTX_free(s
->waitctx
);
1206 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1207 OPENSSL_free(s
->ext
.npn
);
1210 #ifndef OPENSSL_NO_SRTP
1211 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1214 CRYPTO_THREAD_lock_free(s
->lock
);
1219 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1221 BIO_free_all(s
->rbio
);
1225 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1228 * If the output buffering BIO is still in place, remove it
1230 if (s
->bbio
!= NULL
)
1231 s
->wbio
= BIO_pop(s
->wbio
);
1233 BIO_free_all(s
->wbio
);
1236 /* Re-attach |bbio| to the new |wbio|. */
1237 if (s
->bbio
!= NULL
)
1238 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1241 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1244 * For historical reasons, this function has many different cases in
1245 * ownership handling.
1248 /* If nothing has changed, do nothing */
1249 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1253 * If the two arguments are equal then one fewer reference is granted by the
1254 * caller than we want to take
1256 if (rbio
!= NULL
&& rbio
== wbio
)
1260 * If only the wbio is changed only adopt one reference.
1262 if (rbio
== SSL_get_rbio(s
)) {
1263 SSL_set0_wbio(s
, wbio
);
1267 * There is an asymmetry here for historical reasons. If only the rbio is
1268 * changed AND the rbio and wbio were originally different, then we only
1269 * adopt one reference.
1271 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1272 SSL_set0_rbio(s
, rbio
);
1276 /* Otherwise, adopt both references. */
1277 SSL_set0_rbio(s
, rbio
);
1278 SSL_set0_wbio(s
, wbio
);
1281 BIO
*SSL_get_rbio(const SSL
*s
)
1286 BIO
*SSL_get_wbio(const SSL
*s
)
1288 if (s
->bbio
!= NULL
) {
1290 * If |bbio| is active, the true caller-configured BIO is its
1293 return BIO_next(s
->bbio
);
1298 int SSL_get_fd(const SSL
*s
)
1300 return SSL_get_rfd(s
);
1303 int SSL_get_rfd(const SSL
*s
)
1308 b
= SSL_get_rbio(s
);
1309 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1311 BIO_get_fd(r
, &ret
);
1315 int SSL_get_wfd(const SSL
*s
)
1320 b
= SSL_get_wbio(s
);
1321 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1323 BIO_get_fd(r
, &ret
);
1327 #ifndef OPENSSL_NO_SOCK
1328 int SSL_set_fd(SSL
*s
, int fd
)
1333 bio
= BIO_new(BIO_s_socket());
1336 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1339 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1340 SSL_set_bio(s
, bio
, bio
);
1346 int SSL_set_wfd(SSL
*s
, int fd
)
1348 BIO
*rbio
= SSL_get_rbio(s
);
1350 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1351 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1352 BIO
*bio
= BIO_new(BIO_s_socket());
1355 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1358 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1359 SSL_set0_wbio(s
, bio
);
1362 SSL_set0_wbio(s
, rbio
);
1367 int SSL_set_rfd(SSL
*s
, int fd
)
1369 BIO
*wbio
= SSL_get_wbio(s
);
1371 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1372 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1373 BIO
*bio
= BIO_new(BIO_s_socket());
1376 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1379 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1380 SSL_set0_rbio(s
, bio
);
1383 SSL_set0_rbio(s
, wbio
);
1390 /* return length of latest Finished message we sent, copy to 'buf' */
1391 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1395 if (s
->s3
!= NULL
) {
1396 ret
= s
->s3
->tmp
.finish_md_len
;
1399 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1404 /* return length of latest Finished message we expected, copy to 'buf' */
1405 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1409 if (s
->s3
!= NULL
) {
1410 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1413 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1418 int SSL_get_verify_mode(const SSL
*s
)
1420 return s
->verify_mode
;
1423 int SSL_get_verify_depth(const SSL
*s
)
1425 return X509_VERIFY_PARAM_get_depth(s
->param
);
1428 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1429 return s
->verify_callback
;
1432 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1434 return ctx
->verify_mode
;
1437 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1439 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1442 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1443 return ctx
->default_verify_callback
;
1446 void SSL_set_verify(SSL
*s
, int mode
,
1447 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1449 s
->verify_mode
= mode
;
1450 if (callback
!= NULL
)
1451 s
->verify_callback
= callback
;
1454 void SSL_set_verify_depth(SSL
*s
, int depth
)
1456 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1459 void SSL_set_read_ahead(SSL
*s
, int yes
)
1461 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1464 int SSL_get_read_ahead(const SSL
*s
)
1466 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1469 int SSL_pending(const SSL
*s
)
1471 size_t pending
= s
->method
->ssl_pending(s
);
1474 * SSL_pending cannot work properly if read-ahead is enabled
1475 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1476 * impossible to fix since SSL_pending cannot report errors that may be
1477 * observed while scanning the new data. (Note that SSL_pending() is
1478 * often used as a boolean value, so we'd better not return -1.)
1480 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1481 * we just return INT_MAX.
1483 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1486 int SSL_has_pending(const SSL
*s
)
1489 * Similar to SSL_pending() but returns a 1 to indicate that we have
1490 * unprocessed data available or 0 otherwise (as opposed to the number of
1491 * bytes available). Unlike SSL_pending() this will take into account
1492 * read_ahead data. A 1 return simply indicates that we have unprocessed
1493 * data. That data may not result in any application data, or we may fail
1494 * to parse the records for some reason.
1496 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1499 return RECORD_LAYER_read_pending(&s
->rlayer
);
1502 X509
*SSL_get_peer_certificate(const SSL
*s
)
1506 if ((s
== NULL
) || (s
->session
== NULL
))
1509 r
= s
->session
->peer
;
1519 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1523 if ((s
== NULL
) || (s
->session
== NULL
))
1526 r
= s
->session
->peer_chain
;
1529 * If we are a client, cert_chain includes the peer's own certificate; if
1530 * we are a server, it does not.
1537 * Now in theory, since the calling process own 't' it should be safe to
1538 * modify. We need to be able to read f without being hassled
1540 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1543 /* Do we need to to SSL locking? */
1544 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1549 * what if we are setup for one protocol version but want to talk another
1551 if (t
->method
!= f
->method
) {
1552 t
->method
->ssl_free(t
);
1553 t
->method
= f
->method
;
1554 if (t
->method
->ssl_new(t
) == 0)
1558 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1559 ssl_cert_free(t
->cert
);
1561 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1568 /* Fix this so it checks all the valid key/cert options */
1569 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1571 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1572 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1575 if (ctx
->cert
->key
->privatekey
== NULL
) {
1576 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1579 return X509_check_private_key
1580 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1583 /* Fix this function so that it takes an optional type parameter */
1584 int SSL_check_private_key(const SSL
*ssl
)
1587 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1590 if (ssl
->cert
->key
->x509
== NULL
) {
1591 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1594 if (ssl
->cert
->key
->privatekey
== NULL
) {
1595 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1598 return X509_check_private_key(ssl
->cert
->key
->x509
,
1599 ssl
->cert
->key
->privatekey
);
1602 int SSL_waiting_for_async(SSL
*s
)
1610 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1612 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1616 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1619 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1620 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1622 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1626 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1630 int SSL_accept(SSL
*s
)
1632 if (s
->handshake_func
== NULL
) {
1633 /* Not properly initialized yet */
1634 SSL_set_accept_state(s
);
1637 return SSL_do_handshake(s
);
1640 int SSL_connect(SSL
*s
)
1642 if (s
->handshake_func
== NULL
) {
1643 /* Not properly initialized yet */
1644 SSL_set_connect_state(s
);
1647 return SSL_do_handshake(s
);
1650 long SSL_get_default_timeout(const SSL
*s
)
1652 return s
->method
->get_timeout();
1655 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1656 int (*func
) (void *))
1659 if (s
->waitctx
== NULL
) {
1660 s
->waitctx
= ASYNC_WAIT_CTX_new();
1661 if (s
->waitctx
== NULL
)
1664 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1665 sizeof(struct ssl_async_args
))) {
1667 s
->rwstate
= SSL_NOTHING
;
1668 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1671 s
->rwstate
= SSL_ASYNC_PAUSED
;
1674 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1680 s
->rwstate
= SSL_NOTHING
;
1681 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1682 /* Shouldn't happen */
1687 static int ssl_io_intern(void *vargs
)
1689 struct ssl_async_args
*args
;
1694 args
= (struct ssl_async_args
*)vargs
;
1698 switch (args
->type
) {
1700 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1702 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1704 return args
->f
.func_other(s
);
1709 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1711 if (s
->handshake_func
== NULL
) {
1712 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1716 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1717 s
->rwstate
= SSL_NOTHING
;
1721 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1722 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1723 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1727 * If we are a client and haven't received the ServerHello etc then we
1730 ossl_statem_check_finish_init(s
, 0);
1732 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1733 struct ssl_async_args args
;
1739 args
.type
= READFUNC
;
1740 args
.f
.func_read
= s
->method
->ssl_read
;
1742 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1743 *readbytes
= s
->asyncrw
;
1746 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1750 int SSL_read(SSL
*s
, void *buf
, int num
)
1756 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1760 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1763 * The cast is safe here because ret should be <= INT_MAX because num is
1767 ret
= (int)readbytes
;
1772 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1774 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1781 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1786 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1787 return SSL_READ_EARLY_DATA_ERROR
;
1790 switch (s
->early_data_state
) {
1791 case SSL_EARLY_DATA_NONE
:
1792 if (!SSL_in_before(s
)) {
1793 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1794 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1795 return SSL_READ_EARLY_DATA_ERROR
;
1799 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1800 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1801 ret
= SSL_accept(s
);
1804 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1805 return SSL_READ_EARLY_DATA_ERROR
;
1809 case SSL_EARLY_DATA_READ_RETRY
:
1810 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1811 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1812 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1814 * State machine will update early_data_state to
1815 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1818 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1819 != SSL_EARLY_DATA_FINISHED_READING
)) {
1820 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1821 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1822 : SSL_READ_EARLY_DATA_ERROR
;
1825 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1828 return SSL_READ_EARLY_DATA_FINISH
;
1831 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1832 return SSL_READ_EARLY_DATA_ERROR
;
1836 int SSL_get_early_data_status(const SSL
*s
)
1838 return s
->ext
.early_data
;
1841 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1843 if (s
->handshake_func
== NULL
) {
1844 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1848 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1851 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1852 struct ssl_async_args args
;
1858 args
.type
= READFUNC
;
1859 args
.f
.func_read
= s
->method
->ssl_peek
;
1861 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1862 *readbytes
= s
->asyncrw
;
1865 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1869 int SSL_peek(SSL
*s
, void *buf
, int num
)
1875 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1879 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1882 * The cast is safe here because ret should be <= INT_MAX because num is
1886 ret
= (int)readbytes
;
1892 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1894 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1901 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1903 if (s
->handshake_func
== NULL
) {
1904 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1908 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1909 s
->rwstate
= SSL_NOTHING
;
1910 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1914 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1915 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1916 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1917 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1920 /* If we are a client and haven't sent the Finished we better do that */
1921 ossl_statem_check_finish_init(s
, 1);
1923 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1925 struct ssl_async_args args
;
1928 args
.buf
= (void *)buf
;
1930 args
.type
= WRITEFUNC
;
1931 args
.f
.func_write
= s
->method
->ssl_write
;
1933 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1934 *written
= s
->asyncrw
;
1937 return s
->method
->ssl_write(s
, buf
, num
, written
);
1941 int SSL_write(SSL
*s
, const void *buf
, int num
)
1947 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1951 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1954 * The cast is safe here because ret should be <= INT_MAX because num is
1963 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1965 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1972 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1974 int ret
, early_data_state
;
1976 uint32_t partialwrite
;
1978 switch (s
->early_data_state
) {
1979 case SSL_EARLY_DATA_NONE
:
1981 || !SSL_in_before(s
)
1982 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1983 && (s
->psk_use_session_cb
== NULL
))) {
1984 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1985 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1990 case SSL_EARLY_DATA_CONNECT_RETRY
:
1991 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1992 ret
= SSL_connect(s
);
1995 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2000 case SSL_EARLY_DATA_WRITE_RETRY
:
2001 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2003 * We disable partial write for early data because we don't keep track
2004 * of how many bytes we've written between the SSL_write_ex() call and
2005 * the flush if the flush needs to be retried)
2007 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2008 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2009 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2010 s
->mode
|= partialwrite
;
2012 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2015 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2018 case SSL_EARLY_DATA_WRITE_FLUSH
:
2019 /* The buffering BIO is still in place so we need to flush it */
2020 if (statem_flush(s
) != 1)
2023 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2026 case SSL_EARLY_DATA_FINISHED_READING
:
2027 case SSL_EARLY_DATA_READ_RETRY
:
2028 early_data_state
= s
->early_data_state
;
2029 /* We are a server writing to an unauthenticated client */
2030 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2031 ret
= SSL_write_ex(s
, buf
, num
, written
);
2032 /* The buffering BIO is still in place */
2034 (void)BIO_flush(s
->wbio
);
2035 s
->early_data_state
= early_data_state
;
2039 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2044 int SSL_shutdown(SSL
*s
)
2047 * Note that this function behaves differently from what one might
2048 * expect. Return values are 0 for no success (yet), 1 for success; but
2049 * calling it once is usually not enough, even if blocking I/O is used
2050 * (see ssl3_shutdown).
2053 if (s
->handshake_func
== NULL
) {
2054 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2058 if (!SSL_in_init(s
)) {
2059 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2060 struct ssl_async_args args
;
2063 args
.type
= OTHERFUNC
;
2064 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2066 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2068 return s
->method
->ssl_shutdown(s
);
2071 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2076 int SSL_key_update(SSL
*s
, int updatetype
)
2079 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2080 * negotiated, and that it is appropriate to call SSL_key_update() instead
2081 * of SSL_renegotiate().
2083 if (!SSL_IS_TLS13(s
)) {
2084 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2088 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2089 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2090 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2094 if (!SSL_is_init_finished(s
)) {
2095 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2099 ossl_statem_set_in_init(s
, 1);
2100 s
->key_update
= updatetype
;
2104 int SSL_get_key_update_type(SSL
*s
)
2106 return s
->key_update
;
2109 int SSL_renegotiate(SSL
*s
)
2111 if (SSL_IS_TLS13(s
)) {
2112 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2116 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2117 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2124 return s
->method
->ssl_renegotiate(s
);
2127 int SSL_renegotiate_abbreviated(SSL
*s
)
2129 if (SSL_IS_TLS13(s
)) {
2130 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2134 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2135 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2142 return s
->method
->ssl_renegotiate(s
);
2145 int SSL_renegotiate_pending(SSL
*s
)
2148 * becomes true when negotiation is requested; false again once a
2149 * handshake has finished
2151 return (s
->renegotiate
!= 0);
2154 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2159 case SSL_CTRL_GET_READ_AHEAD
:
2160 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2161 case SSL_CTRL_SET_READ_AHEAD
:
2162 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2163 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2166 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2167 s
->msg_callback_arg
= parg
;
2171 return (s
->mode
|= larg
);
2172 case SSL_CTRL_CLEAR_MODE
:
2173 return (s
->mode
&= ~larg
);
2174 case SSL_CTRL_GET_MAX_CERT_LIST
:
2175 return (long)s
->max_cert_list
;
2176 case SSL_CTRL_SET_MAX_CERT_LIST
:
2179 l
= (long)s
->max_cert_list
;
2180 s
->max_cert_list
= (size_t)larg
;
2182 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2183 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2185 s
->max_send_fragment
= larg
;
2186 if (s
->max_send_fragment
< s
->split_send_fragment
)
2187 s
->split_send_fragment
= s
->max_send_fragment
;
2189 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2190 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2192 s
->split_send_fragment
= larg
;
2194 case SSL_CTRL_SET_MAX_PIPELINES
:
2195 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2197 s
->max_pipelines
= larg
;
2199 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2201 case SSL_CTRL_GET_RI_SUPPORT
:
2203 return s
->s3
->send_connection_binding
;
2206 case SSL_CTRL_CERT_FLAGS
:
2207 return (s
->cert
->cert_flags
|= larg
);
2208 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2209 return (s
->cert
->cert_flags
&= ~larg
);
2211 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2213 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2215 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2216 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2218 return TLS_CIPHER_LEN
;
2220 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2221 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2223 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2227 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2228 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2229 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2230 &s
->min_proto_version
);
2231 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2232 return s
->min_proto_version
;
2233 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2234 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2235 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2236 &s
->max_proto_version
);
2237 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2238 return s
->max_proto_version
;
2240 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2244 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2247 case SSL_CTRL_SET_MSG_CALLBACK
:
2248 s
->msg_callback
= (void (*)
2249 (int write_p
, int version
, int content_type
,
2250 const void *buf
, size_t len
, SSL
*ssl
,
2255 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2259 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2261 return ctx
->sessions
;
2264 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2268 /* For some cases with ctx == NULL perform syntax checks */
2271 #ifndef OPENSSL_NO_EC
2272 case SSL_CTRL_SET_GROUPS_LIST
:
2273 return tls1_set_groups_list(NULL
, NULL
, parg
);
2275 case SSL_CTRL_SET_SIGALGS_LIST
:
2276 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2277 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2284 case SSL_CTRL_GET_READ_AHEAD
:
2285 return ctx
->read_ahead
;
2286 case SSL_CTRL_SET_READ_AHEAD
:
2287 l
= ctx
->read_ahead
;
2288 ctx
->read_ahead
= larg
;
2291 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2292 ctx
->msg_callback_arg
= parg
;
2295 case SSL_CTRL_GET_MAX_CERT_LIST
:
2296 return (long)ctx
->max_cert_list
;
2297 case SSL_CTRL_SET_MAX_CERT_LIST
:
2300 l
= (long)ctx
->max_cert_list
;
2301 ctx
->max_cert_list
= (size_t)larg
;
2304 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2307 l
= (long)ctx
->session_cache_size
;
2308 ctx
->session_cache_size
= (size_t)larg
;
2310 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2311 return (long)ctx
->session_cache_size
;
2312 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2313 l
= ctx
->session_cache_mode
;
2314 ctx
->session_cache_mode
= larg
;
2316 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2317 return ctx
->session_cache_mode
;
2319 case SSL_CTRL_SESS_NUMBER
:
2320 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2321 case SSL_CTRL_SESS_CONNECT
:
2322 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect
, &i
, ctx
->lock
)
2324 case SSL_CTRL_SESS_CONNECT_GOOD
:
2325 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_good
, &i
, ctx
->lock
)
2327 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2328 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_renegotiate
, &i
,
2331 case SSL_CTRL_SESS_ACCEPT
:
2332 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept
, &i
, ctx
->lock
)
2334 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2335 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_good
, &i
, ctx
->lock
)
2337 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2338 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_renegotiate
, &i
,
2341 case SSL_CTRL_SESS_HIT
:
2342 return CRYPTO_atomic_read(&ctx
->stats
.sess_hit
, &i
, ctx
->lock
)
2344 case SSL_CTRL_SESS_CB_HIT
:
2345 return CRYPTO_atomic_read(&ctx
->stats
.sess_cb_hit
, &i
, ctx
->lock
)
2347 case SSL_CTRL_SESS_MISSES
:
2348 return CRYPTO_atomic_read(&ctx
->stats
.sess_miss
, &i
, ctx
->lock
)
2350 case SSL_CTRL_SESS_TIMEOUTS
:
2351 return CRYPTO_atomic_read(&ctx
->stats
.sess_timeout
, &i
, ctx
->lock
)
2353 case SSL_CTRL_SESS_CACHE_FULL
:
2354 return CRYPTO_atomic_read(&ctx
->stats
.sess_cache_full
, &i
, ctx
->lock
)
2357 return (ctx
->mode
|= larg
);
2358 case SSL_CTRL_CLEAR_MODE
:
2359 return (ctx
->mode
&= ~larg
);
2360 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2361 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2363 ctx
->max_send_fragment
= larg
;
2364 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2365 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2367 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2368 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2370 ctx
->split_send_fragment
= larg
;
2372 case SSL_CTRL_SET_MAX_PIPELINES
:
2373 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2375 ctx
->max_pipelines
= larg
;
2377 case SSL_CTRL_CERT_FLAGS
:
2378 return (ctx
->cert
->cert_flags
|= larg
);
2379 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2380 return (ctx
->cert
->cert_flags
&= ~larg
);
2381 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2382 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2383 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2384 &ctx
->min_proto_version
);
2385 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2386 return ctx
->min_proto_version
;
2387 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2388 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2389 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2390 &ctx
->max_proto_version
);
2391 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2392 return ctx
->max_proto_version
;
2394 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2398 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2401 case SSL_CTRL_SET_MSG_CALLBACK
:
2402 ctx
->msg_callback
= (void (*)
2403 (int write_p
, int version
, int content_type
,
2404 const void *buf
, size_t len
, SSL
*ssl
,
2409 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2413 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2422 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2423 const SSL_CIPHER
*const *bp
)
2425 if ((*ap
)->id
> (*bp
)->id
)
2427 if ((*ap
)->id
< (*bp
)->id
)
2432 /** return a STACK of the ciphers available for the SSL and in order of
2434 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2437 if (s
->cipher_list
!= NULL
) {
2438 return s
->cipher_list
;
2439 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2440 return s
->ctx
->cipher_list
;
2446 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2448 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2450 return s
->session
->ciphers
;
2453 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2455 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2458 ciphers
= SSL_get_ciphers(s
);
2461 if (!ssl_set_client_disabled(s
))
2463 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2464 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2465 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2467 sk
= sk_SSL_CIPHER_new_null();
2470 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2471 sk_SSL_CIPHER_free(sk
);
2479 /** return a STACK of the ciphers available for the SSL and in order of
2481 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2484 if (s
->cipher_list_by_id
!= NULL
) {
2485 return s
->cipher_list_by_id
;
2486 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2487 return s
->ctx
->cipher_list_by_id
;
2493 /** The old interface to get the same thing as SSL_get_ciphers() */
2494 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2496 const SSL_CIPHER
*c
;
2497 STACK_OF(SSL_CIPHER
) *sk
;
2501 sk
= SSL_get_ciphers(s
);
2502 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2504 c
= sk_SSL_CIPHER_value(sk
, n
);
2510 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2512 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2515 return ctx
->cipher_list
;
2519 /** specify the ciphers to be used by default by the SSL_CTX */
2520 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2522 STACK_OF(SSL_CIPHER
) *sk
;
2524 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2525 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2528 * ssl_create_cipher_list may return an empty stack if it was unable to
2529 * find a cipher matching the given rule string (for example if the rule
2530 * string specifies a cipher which has been disabled). This is not an
2531 * error as far as ssl_create_cipher_list is concerned, and hence
2532 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2536 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2537 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2543 /** specify the ciphers to be used by the SSL */
2544 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2546 STACK_OF(SSL_CIPHER
) *sk
;
2548 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2549 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2551 /* see comment in SSL_CTX_set_cipher_list */
2554 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2555 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2561 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2564 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2565 const SSL_CIPHER
*c
;
2569 || s
->session
== NULL
2570 || s
->session
->ciphers
== NULL
2575 clntsk
= s
->session
->ciphers
;
2576 srvrsk
= SSL_get_ciphers(s
);
2577 if (clntsk
== NULL
|| srvrsk
== NULL
)
2580 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2583 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2586 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2587 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2590 n
= strlen(c
->name
);
2606 /** return a servername extension value if provided in Client Hello, or NULL.
2607 * So far, only host_name types are defined (RFC 3546).
2610 const char *SSL_get_servername(const SSL
*s
, const int type
)
2612 if (type
!= TLSEXT_NAMETYPE_host_name
)
2616 * TODO(OpenSSL1.2) clean up this compat mess. This API is
2617 * currently a mix of "what did I configure" and "what did the
2618 * peer send" and "what was actually negotiated"; we should have
2619 * a clear distinction amongst those three.
2621 if (SSL_in_init(s
)) {
2623 return s
->session
->ext
.hostname
;
2624 return s
->ext
.hostname
;
2626 return (s
->session
!= NULL
&& s
->ext
.hostname
== NULL
) ?
2627 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2630 int SSL_get_servername_type(const SSL
*s
)
2633 && (!s
->ext
.hostname
? s
->session
->
2634 ext
.hostname
: s
->ext
.hostname
))
2635 return TLSEXT_NAMETYPE_host_name
;
2640 * SSL_select_next_proto implements the standard protocol selection. It is
2641 * expected that this function is called from the callback set by
2642 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2643 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2644 * not included in the length. A byte string of length 0 is invalid. No byte
2645 * string may be truncated. The current, but experimental algorithm for
2646 * selecting the protocol is: 1) If the server doesn't support NPN then this
2647 * is indicated to the callback. In this case, the client application has to
2648 * abort the connection or have a default application level protocol. 2) If
2649 * the server supports NPN, but advertises an empty list then the client
2650 * selects the first protocol in its list, but indicates via the API that this
2651 * fallback case was enacted. 3) Otherwise, the client finds the first
2652 * protocol in the server's list that it supports and selects this protocol.
2653 * This is because it's assumed that the server has better information about
2654 * which protocol a client should use. 4) If the client doesn't support any
2655 * of the server's advertised protocols, then this is treated the same as
2656 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2657 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2659 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2660 const unsigned char *server
,
2661 unsigned int server_len
,
2662 const unsigned char *client
, unsigned int client_len
)
2665 const unsigned char *result
;
2666 int status
= OPENSSL_NPN_UNSUPPORTED
;
2669 * For each protocol in server preference order, see if we support it.
2671 for (i
= 0; i
< server_len
;) {
2672 for (j
= 0; j
< client_len
;) {
2673 if (server
[i
] == client
[j
] &&
2674 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2675 /* We found a match */
2676 result
= &server
[i
];
2677 status
= OPENSSL_NPN_NEGOTIATED
;
2687 /* There's no overlap between our protocols and the server's list. */
2689 status
= OPENSSL_NPN_NO_OVERLAP
;
2692 *out
= (unsigned char *)result
+ 1;
2693 *outlen
= result
[0];
2697 #ifndef OPENSSL_NO_NEXTPROTONEG
2699 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2700 * client's requested protocol for this connection and returns 0. If the
2701 * client didn't request any protocol, then *data is set to NULL. Note that
2702 * the client can request any protocol it chooses. The value returned from
2703 * this function need not be a member of the list of supported protocols
2704 * provided by the callback.
2706 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2713 *len
= (unsigned int)s
->ext
.npn_len
;
2718 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2719 * a TLS server needs a list of supported protocols for Next Protocol
2720 * Negotiation. The returned list must be in wire format. The list is
2721 * returned by setting |out| to point to it and |outlen| to its length. This
2722 * memory will not be modified, but one should assume that the SSL* keeps a
2723 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2724 * wishes to advertise. Otherwise, no such extension will be included in the
2727 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2728 SSL_CTX_npn_advertised_cb_func cb
,
2731 ctx
->ext
.npn_advertised_cb
= cb
;
2732 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2736 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2737 * client needs to select a protocol from the server's provided list. |out|
2738 * must be set to point to the selected protocol (which may be within |in|).
2739 * The length of the protocol name must be written into |outlen|. The
2740 * server's advertised protocols are provided in |in| and |inlen|. The
2741 * callback can assume that |in| is syntactically valid. The client must
2742 * select a protocol. It is fatal to the connection if this callback returns
2743 * a value other than SSL_TLSEXT_ERR_OK.
2745 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2746 SSL_CTX_npn_select_cb_func cb
,
2749 ctx
->ext
.npn_select_cb
= cb
;
2750 ctx
->ext
.npn_select_cb_arg
= arg
;
2755 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2756 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2757 * length-prefixed strings). Returns 0 on success.
2759 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2760 unsigned int protos_len
)
2762 OPENSSL_free(ctx
->ext
.alpn
);
2763 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2764 if (ctx
->ext
.alpn
== NULL
) {
2765 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2768 ctx
->ext
.alpn_len
= protos_len
;
2774 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2775 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2776 * length-prefixed strings). Returns 0 on success.
2778 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2779 unsigned int protos_len
)
2781 OPENSSL_free(ssl
->ext
.alpn
);
2782 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2783 if (ssl
->ext
.alpn
== NULL
) {
2784 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2787 ssl
->ext
.alpn_len
= protos_len
;
2793 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2794 * called during ClientHello processing in order to select an ALPN protocol
2795 * from the client's list of offered protocols.
2797 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2798 SSL_CTX_alpn_select_cb_func cb
,
2801 ctx
->ext
.alpn_select_cb
= cb
;
2802 ctx
->ext
.alpn_select_cb_arg
= arg
;
2806 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2807 * On return it sets |*data| to point to |*len| bytes of protocol name
2808 * (not including the leading length-prefix byte). If the server didn't
2809 * respond with a negotiated protocol then |*len| will be zero.
2811 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2816 *data
= ssl
->s3
->alpn_selected
;
2820 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2823 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2824 const char *label
, size_t llen
,
2825 const unsigned char *context
, size_t contextlen
,
2828 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2831 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2833 contextlen
, use_context
);
2836 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2837 const char *label
, size_t llen
,
2838 const unsigned char *context
,
2841 if (s
->version
!= TLS1_3_VERSION
)
2844 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2845 context
, contextlen
);
2848 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2850 const unsigned char *session_id
= a
->session_id
;
2852 unsigned char tmp_storage
[4];
2854 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2855 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2856 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2857 session_id
= tmp_storage
;
2861 ((unsigned long)session_id
[0]) |
2862 ((unsigned long)session_id
[1] << 8L) |
2863 ((unsigned long)session_id
[2] << 16L) |
2864 ((unsigned long)session_id
[3] << 24L);
2869 * NB: If this function (or indeed the hash function which uses a sort of
2870 * coarser function than this one) is changed, ensure
2871 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2872 * being able to construct an SSL_SESSION that will collide with any existing
2873 * session with a matching session ID.
2875 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2877 if (a
->ssl_version
!= b
->ssl_version
)
2879 if (a
->session_id_length
!= b
->session_id_length
)
2881 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2885 * These wrapper functions should remain rather than redeclaring
2886 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2887 * variable. The reason is that the functions aren't static, they're exposed
2891 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2893 SSL_CTX
*ret
= NULL
;
2896 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2900 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2903 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2904 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2907 ret
= OPENSSL_zalloc(sizeof(*ret
));
2912 ret
->min_proto_version
= 0;
2913 ret
->max_proto_version
= 0;
2914 ret
->mode
= SSL_MODE_AUTO_RETRY
;
2915 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2916 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2917 /* We take the system default. */
2918 ret
->session_timeout
= meth
->get_timeout();
2919 ret
->references
= 1;
2920 ret
->lock
= CRYPTO_THREAD_lock_new();
2921 if (ret
->lock
== NULL
) {
2922 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2926 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2927 ret
->verify_mode
= SSL_VERIFY_NONE
;
2928 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2931 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2932 if (ret
->sessions
== NULL
)
2934 ret
->cert_store
= X509_STORE_new();
2935 if (ret
->cert_store
== NULL
)
2937 #ifndef OPENSSL_NO_CT
2938 ret
->ctlog_store
= CTLOG_STORE_new();
2939 if (ret
->ctlog_store
== NULL
)
2943 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
2946 if (!ssl_create_cipher_list(ret
->method
,
2947 ret
->tls13_ciphersuites
,
2948 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2949 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2950 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2951 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2955 ret
->param
= X509_VERIFY_PARAM_new();
2956 if (ret
->param
== NULL
)
2959 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2960 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2963 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2964 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2968 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2971 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2974 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
2977 /* No compression for DTLS */
2978 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2979 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2981 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2982 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2984 /* Setup RFC5077 ticket keys */
2985 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2986 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2987 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
2988 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
2989 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
2990 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
2991 ret
->options
|= SSL_OP_NO_TICKET
;
2993 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
2994 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
2997 #ifndef OPENSSL_NO_SRP
2998 if (!SSL_CTX_SRP_CTX_init(ret
))
3001 #ifndef OPENSSL_NO_ENGINE
3002 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3003 # define eng_strx(x) #x
3004 # define eng_str(x) eng_strx(x)
3005 /* Use specific client engine automatically... ignore errors */
3008 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3011 ENGINE_load_builtin_engines();
3012 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3014 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3020 * Default is to connect to non-RI servers. When RI is more widely
3021 * deployed might change this.
3023 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3025 * Disable compression by default to prevent CRIME. Applications can
3026 * re-enable compression by configuring
3027 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3028 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3029 * middlebox compatibility by default. This may be disabled by default in
3030 * a later OpenSSL version.
3032 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3034 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3037 * We cannot usefully set a default max_early_data here (which gets
3038 * propagated in SSL_new(), for the following reason: setting the
3039 * SSL field causes tls_construct_stoc_early_data() to tell the
3040 * client that early data will be accepted when constructing a TLS 1.3
3041 * session ticket, and the client will accordingly send us early data
3042 * when using that ticket (if the client has early data to send).
3043 * However, in order for the early data to actually be consumed by
3044 * the application, the application must also have calls to
3045 * SSL_read_early_data(); otherwise we'll just skip past the early data
3046 * and ignore it. So, since the application must add calls to
3047 * SSL_read_early_data(), we also require them to add
3048 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3049 * eliminating the bandwidth-wasting early data in the case described
3052 ret
->max_early_data
= 0;
3055 * Default recv_max_early_data is a fully loaded single record. Could be
3056 * split across multiple records in practice. We set this differently to
3057 * max_early_data so that, in the default case, we do not advertise any
3058 * support for early_data, but if a client were to send us some (e.g.
3059 * because of an old, stale ticket) then we will tolerate it and skip over
3062 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3064 /* By default we send two session tickets automatically in TLSv1.3 */
3065 ret
->num_tickets
= 2;
3067 ssl_ctx_system_config(ret
);
3071 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3077 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3081 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3084 REF_PRINT_COUNT("SSL_CTX", ctx
);
3085 REF_ASSERT_ISNT(i
< 2);
3086 return ((i
> 1) ? 1 : 0);
3089 void SSL_CTX_free(SSL_CTX
*a
)
3096 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3097 REF_PRINT_COUNT("SSL_CTX", a
);
3100 REF_ASSERT_ISNT(i
< 0);
3102 X509_VERIFY_PARAM_free(a
->param
);
3103 dane_ctx_final(&a
->dane
);
3106 * Free internal session cache. However: the remove_cb() may reference
3107 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3108 * after the sessions were flushed.
3109 * As the ex_data handling routines might also touch the session cache,
3110 * the most secure solution seems to be: empty (flush) the cache, then
3111 * free ex_data, then finally free the cache.
3112 * (See ticket [openssl.org #212].)
3114 if (a
->sessions
!= NULL
)
3115 SSL_CTX_flush_sessions(a
, 0);
3117 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3118 lh_SSL_SESSION_free(a
->sessions
);
3119 X509_STORE_free(a
->cert_store
);
3120 #ifndef OPENSSL_NO_CT
3121 CTLOG_STORE_free(a
->ctlog_store
);
3123 sk_SSL_CIPHER_free(a
->cipher_list
);
3124 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3125 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3126 ssl_cert_free(a
->cert
);
3127 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3128 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3129 a
->comp_methods
= NULL
;
3130 #ifndef OPENSSL_NO_SRTP
3131 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3133 #ifndef OPENSSL_NO_SRP
3134 SSL_CTX_SRP_CTX_free(a
);
3136 #ifndef OPENSSL_NO_ENGINE
3137 ENGINE_finish(a
->client_cert_engine
);
3140 #ifndef OPENSSL_NO_EC
3141 OPENSSL_free(a
->ext
.ecpointformats
);
3142 OPENSSL_free(a
->ext
.supportedgroups
);
3144 OPENSSL_free(a
->ext
.alpn
);
3145 OPENSSL_secure_free(a
->ext
.secure
);
3147 CRYPTO_THREAD_lock_free(a
->lock
);
3152 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3154 ctx
->default_passwd_callback
= cb
;
3157 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3159 ctx
->default_passwd_callback_userdata
= u
;
3162 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3164 return ctx
->default_passwd_callback
;
3167 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3169 return ctx
->default_passwd_callback_userdata
;
3172 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3174 s
->default_passwd_callback
= cb
;
3177 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3179 s
->default_passwd_callback_userdata
= u
;
3182 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3184 return s
->default_passwd_callback
;
3187 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3189 return s
->default_passwd_callback_userdata
;
3192 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3193 int (*cb
) (X509_STORE_CTX
*, void *),
3196 ctx
->app_verify_callback
= cb
;
3197 ctx
->app_verify_arg
= arg
;
3200 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3201 int (*cb
) (int, X509_STORE_CTX
*))
3203 ctx
->verify_mode
= mode
;
3204 ctx
->default_verify_callback
= cb
;
3207 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3209 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3212 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3214 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3217 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3219 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3222 void ssl_set_masks(SSL
*s
)
3225 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3226 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3227 unsigned long mask_k
, mask_a
;
3228 #ifndef OPENSSL_NO_EC
3229 int have_ecc_cert
, ecdsa_ok
;
3234 #ifndef OPENSSL_NO_DH
3235 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3240 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3241 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3242 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3243 #ifndef OPENSSL_NO_EC
3244 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3250 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3251 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3254 #ifndef OPENSSL_NO_GOST
3255 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3256 mask_k
|= SSL_kGOST
;
3257 mask_a
|= SSL_aGOST12
;
3259 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3260 mask_k
|= SSL_kGOST
;
3261 mask_a
|= SSL_aGOST12
;
3263 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3264 mask_k
|= SSL_kGOST
;
3265 mask_a
|= SSL_aGOST01
;
3276 * If we only have an RSA-PSS certificate allow RSA authentication
3277 * if TLS 1.2 and peer supports it.
3280 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3281 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3282 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3289 mask_a
|= SSL_aNULL
;
3292 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3293 * depending on the key usage extension.
3295 #ifndef OPENSSL_NO_EC
3296 if (have_ecc_cert
) {
3298 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3299 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3300 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3303 mask_a
|= SSL_aECDSA
;
3305 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3306 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3307 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3308 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3309 mask_a
|= SSL_aECDSA
;
3311 /* Allow Ed448 for TLS 1.2 if peer supports it */
3312 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3313 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3314 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3315 mask_a
|= SSL_aECDSA
;
3318 #ifndef OPENSSL_NO_EC
3319 mask_k
|= SSL_kECDHE
;
3322 #ifndef OPENSSL_NO_PSK
3325 if (mask_k
& SSL_kRSA
)
3326 mask_k
|= SSL_kRSAPSK
;
3327 if (mask_k
& SSL_kDHE
)
3328 mask_k
|= SSL_kDHEPSK
;
3329 if (mask_k
& SSL_kECDHE
)
3330 mask_k
|= SSL_kECDHEPSK
;
3333 s
->s3
->tmp
.mask_k
= mask_k
;
3334 s
->s3
->tmp
.mask_a
= mask_a
;
3337 #ifndef OPENSSL_NO_EC
3339 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3341 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3342 /* key usage, if present, must allow signing */
3343 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3344 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3345 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3349 return 1; /* all checks are ok */
3354 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3355 size_t *serverinfo_length
)
3357 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3358 *serverinfo_length
= 0;
3360 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3363 *serverinfo
= cpk
->serverinfo
;
3364 *serverinfo_length
= cpk
->serverinfo_length
;
3368 void ssl_update_cache(SSL
*s
, int mode
)
3373 * If the session_id_length is 0, we are not supposed to cache it, and it
3374 * would be rather hard to do anyway :-)
3376 if (s
->session
->session_id_length
== 0)
3380 * If sid_ctx_length is 0 there is no specific application context
3381 * associated with this session, so when we try to resume it and
3382 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3383 * indication that this is actually a session for the proper application
3384 * context, and the *handshake* will fail, not just the resumption attempt.
3385 * Do not cache (on the server) these sessions that are not resumable
3386 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3388 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3389 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3392 i
= s
->session_ctx
->session_cache_mode
;
3394 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3396 * Add the session to the internal cache. In server side TLSv1.3 we
3397 * normally don't do this because by default it's a full stateless ticket
3398 * with only a dummy session id so there is no reason to cache it,
3400 * - we are doing early_data, in which case we cache so that we can
3402 * - the application has set a remove_session_cb so needs to know about
3403 * session timeout events
3404 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3406 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3407 && (!SSL_IS_TLS13(s
)
3409 || (s
->max_early_data
> 0
3410 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3411 || s
->session_ctx
->remove_session_cb
!= NULL
3412 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3413 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3416 * Add the session to the external cache. We do this even in server side
3417 * TLSv1.3 without early data because some applications just want to
3418 * know about the creation of a session and aren't doing a full cache.
3420 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3421 SSL_SESSION_up_ref(s
->session
);
3422 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3423 SSL_SESSION_free(s
->session
);
3427 /* auto flush every 255 connections */
3428 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3430 if (mode
& SSL_SESS_CACHE_CLIENT
)
3431 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3433 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3434 if (CRYPTO_atomic_read(stat
, &val
, s
->session_ctx
->lock
)
3435 && (val
& 0xff) == 0xff)
3436 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3440 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3445 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3450 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3454 if (s
->method
!= meth
) {
3455 const SSL_METHOD
*sm
= s
->method
;
3456 int (*hf
) (SSL
*) = s
->handshake_func
;
3458 if (sm
->version
== meth
->version
)
3463 ret
= s
->method
->ssl_new(s
);
3466 if (hf
== sm
->ssl_connect
)
3467 s
->handshake_func
= meth
->ssl_connect
;
3468 else if (hf
== sm
->ssl_accept
)
3469 s
->handshake_func
= meth
->ssl_accept
;
3474 int SSL_get_error(const SSL
*s
, int i
)
3481 return SSL_ERROR_NONE
;
3484 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3485 * where we do encode the error
3487 if ((l
= ERR_peek_error()) != 0) {
3488 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3489 return SSL_ERROR_SYSCALL
;
3491 return SSL_ERROR_SSL
;
3494 if (SSL_want_read(s
)) {
3495 bio
= SSL_get_rbio(s
);
3496 if (BIO_should_read(bio
))
3497 return SSL_ERROR_WANT_READ
;
3498 else if (BIO_should_write(bio
))
3500 * This one doesn't make too much sense ... We never try to write
3501 * to the rbio, and an application program where rbio and wbio
3502 * are separate couldn't even know what it should wait for.
3503 * However if we ever set s->rwstate incorrectly (so that we have
3504 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3505 * wbio *are* the same, this test works around that bug; so it
3506 * might be safer to keep it.
3508 return SSL_ERROR_WANT_WRITE
;
3509 else if (BIO_should_io_special(bio
)) {
3510 reason
= BIO_get_retry_reason(bio
);
3511 if (reason
== BIO_RR_CONNECT
)
3512 return SSL_ERROR_WANT_CONNECT
;
3513 else if (reason
== BIO_RR_ACCEPT
)
3514 return SSL_ERROR_WANT_ACCEPT
;
3516 return SSL_ERROR_SYSCALL
; /* unknown */
3520 if (SSL_want_write(s
)) {
3521 /* Access wbio directly - in order to use the buffered bio if present */
3523 if (BIO_should_write(bio
))
3524 return SSL_ERROR_WANT_WRITE
;
3525 else if (BIO_should_read(bio
))
3527 * See above (SSL_want_read(s) with BIO_should_write(bio))
3529 return SSL_ERROR_WANT_READ
;
3530 else if (BIO_should_io_special(bio
)) {
3531 reason
= BIO_get_retry_reason(bio
);
3532 if (reason
== BIO_RR_CONNECT
)
3533 return SSL_ERROR_WANT_CONNECT
;
3534 else if (reason
== BIO_RR_ACCEPT
)
3535 return SSL_ERROR_WANT_ACCEPT
;
3537 return SSL_ERROR_SYSCALL
;
3540 if (SSL_want_x509_lookup(s
))
3541 return SSL_ERROR_WANT_X509_LOOKUP
;
3542 if (SSL_want_async(s
))
3543 return SSL_ERROR_WANT_ASYNC
;
3544 if (SSL_want_async_job(s
))
3545 return SSL_ERROR_WANT_ASYNC_JOB
;
3546 if (SSL_want_client_hello_cb(s
))
3547 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3549 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3550 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3551 return SSL_ERROR_ZERO_RETURN
;
3553 return SSL_ERROR_SYSCALL
;
3556 static int ssl_do_handshake_intern(void *vargs
)
3558 struct ssl_async_args
*args
;
3561 args
= (struct ssl_async_args
*)vargs
;
3564 return s
->handshake_func(s
);
3567 int SSL_do_handshake(SSL
*s
)
3571 if (s
->handshake_func
== NULL
) {
3572 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3576 ossl_statem_check_finish_init(s
, -1);
3578 s
->method
->ssl_renegotiate_check(s
, 0);
3580 if (SSL_is_server(s
)) {
3581 /* clear SNI settings at server-side */
3582 OPENSSL_free(s
->ext
.hostname
);
3583 s
->ext
.hostname
= NULL
;
3586 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3587 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3588 struct ssl_async_args args
;
3592 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3594 ret
= s
->handshake_func(s
);
3600 void SSL_set_accept_state(SSL
*s
)
3604 ossl_statem_clear(s
);
3605 s
->handshake_func
= s
->method
->ssl_accept
;
3609 void SSL_set_connect_state(SSL
*s
)
3613 ossl_statem_clear(s
);
3614 s
->handshake_func
= s
->method
->ssl_connect
;
3618 int ssl_undefined_function(SSL
*s
)
3620 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3624 int ssl_undefined_void_function(void)
3626 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3627 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3631 int ssl_undefined_const_function(const SSL
*s
)
3636 const SSL_METHOD
*ssl_bad_method(int ver
)
3638 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3642 const char *ssl_protocol_to_string(int version
)
3646 case TLS1_3_VERSION
:
3649 case TLS1_2_VERSION
:
3652 case TLS1_1_VERSION
:
3667 case DTLS1_2_VERSION
:
3675 const char *SSL_get_version(const SSL
*s
)
3677 return ssl_protocol_to_string(s
->version
);
3680 SSL
*SSL_dup(SSL
*s
)
3682 STACK_OF(X509_NAME
) *sk
;
3687 /* If we're not quiescent, just up_ref! */
3688 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3689 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3694 * Otherwise, copy configuration state, and session if set.
3696 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3699 if (s
->session
!= NULL
) {
3701 * Arranges to share the same session via up_ref. This "copies"
3702 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3704 if (!SSL_copy_session_id(ret
, s
))
3708 * No session has been established yet, so we have to expect that
3709 * s->cert or ret->cert will be changed later -- they should not both
3710 * point to the same object, and thus we can't use
3711 * SSL_copy_session_id.
3713 if (!SSL_set_ssl_method(ret
, s
->method
))
3716 if (s
->cert
!= NULL
) {
3717 ssl_cert_free(ret
->cert
);
3718 ret
->cert
= ssl_cert_dup(s
->cert
);
3719 if (ret
->cert
== NULL
)
3723 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3724 (int)s
->sid_ctx_length
))
3728 if (!ssl_dane_dup(ret
, s
))
3730 ret
->version
= s
->version
;
3731 ret
->options
= s
->options
;
3732 ret
->mode
= s
->mode
;
3733 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3734 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3735 ret
->msg_callback
= s
->msg_callback
;
3736 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3737 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3738 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3739 ret
->generate_session_id
= s
->generate_session_id
;
3741 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3743 /* copy app data, a little dangerous perhaps */
3744 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3747 /* setup rbio, and wbio */
3748 if (s
->rbio
!= NULL
) {
3749 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3752 if (s
->wbio
!= NULL
) {
3753 if (s
->wbio
!= s
->rbio
) {
3754 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3757 BIO_up_ref(ret
->rbio
);
3758 ret
->wbio
= ret
->rbio
;
3762 ret
->server
= s
->server
;
3763 if (s
->handshake_func
) {
3765 SSL_set_accept_state(ret
);
3767 SSL_set_connect_state(ret
);
3769 ret
->shutdown
= s
->shutdown
;
3772 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3773 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3775 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3777 /* dup the cipher_list and cipher_list_by_id stacks */
3778 if (s
->cipher_list
!= NULL
) {
3779 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3782 if (s
->cipher_list_by_id
!= NULL
)
3783 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3787 /* Dup the client_CA list */
3788 if (s
->ca_names
!= NULL
) {
3789 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3792 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3793 xn
= sk_X509_NAME_value(sk
, i
);
3794 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3807 void ssl_clear_cipher_ctx(SSL
*s
)
3809 if (s
->enc_read_ctx
!= NULL
) {
3810 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3811 s
->enc_read_ctx
= NULL
;
3813 if (s
->enc_write_ctx
!= NULL
) {
3814 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3815 s
->enc_write_ctx
= NULL
;
3817 #ifndef OPENSSL_NO_COMP
3818 COMP_CTX_free(s
->expand
);
3820 COMP_CTX_free(s
->compress
);
3825 X509
*SSL_get_certificate(const SSL
*s
)
3827 if (s
->cert
!= NULL
)
3828 return s
->cert
->key
->x509
;
3833 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3835 if (s
->cert
!= NULL
)
3836 return s
->cert
->key
->privatekey
;
3841 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3843 if (ctx
->cert
!= NULL
)
3844 return ctx
->cert
->key
->x509
;
3849 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3851 if (ctx
->cert
!= NULL
)
3852 return ctx
->cert
->key
->privatekey
;
3857 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3859 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3860 return s
->session
->cipher
;
3864 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3866 return s
->s3
->tmp
.new_cipher
;
3869 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3871 #ifndef OPENSSL_NO_COMP
3872 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3878 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3880 #ifndef OPENSSL_NO_COMP
3881 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3887 int ssl_init_wbio_buffer(SSL
*s
)
3891 if (s
->bbio
!= NULL
) {
3892 /* Already buffered. */
3896 bbio
= BIO_new(BIO_f_buffer());
3897 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3899 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3903 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3908 int ssl_free_wbio_buffer(SSL
*s
)
3910 /* callers ensure s is never null */
3911 if (s
->bbio
== NULL
)
3914 s
->wbio
= BIO_pop(s
->wbio
);
3921 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3923 ctx
->quiet_shutdown
= mode
;
3926 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3928 return ctx
->quiet_shutdown
;
3931 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3933 s
->quiet_shutdown
= mode
;
3936 int SSL_get_quiet_shutdown(const SSL
*s
)
3938 return s
->quiet_shutdown
;
3941 void SSL_set_shutdown(SSL
*s
, int mode
)
3946 int SSL_get_shutdown(const SSL
*s
)
3951 int SSL_version(const SSL
*s
)
3956 int SSL_client_version(const SSL
*s
)
3958 return s
->client_version
;
3961 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3966 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3969 if (ssl
->ctx
== ctx
)
3972 ctx
= ssl
->session_ctx
;
3973 new_cert
= ssl_cert_dup(ctx
->cert
);
3974 if (new_cert
== NULL
) {
3978 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3979 ssl_cert_free(new_cert
);
3983 ssl_cert_free(ssl
->cert
);
3984 ssl
->cert
= new_cert
;
3987 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3988 * so setter APIs must prevent invalid lengths from entering the system.
3990 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3994 * If the session ID context matches that of the parent SSL_CTX,
3995 * inherit it from the new SSL_CTX as well. If however the context does
3996 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3997 * leave it unchanged.
3999 if ((ssl
->ctx
!= NULL
) &&
4000 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4001 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4002 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4003 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4006 SSL_CTX_up_ref(ctx
);
4007 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4013 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4015 return X509_STORE_set_default_paths(ctx
->cert_store
);
4018 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4020 X509_LOOKUP
*lookup
;
4022 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4025 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4027 /* Clear any errors if the default directory does not exist */
4033 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4035 X509_LOOKUP
*lookup
;
4037 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4041 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4043 /* Clear any errors if the default file does not exist */
4049 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4052 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4055 void SSL_set_info_callback(SSL
*ssl
,
4056 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4058 ssl
->info_callback
= cb
;
4062 * One compiler (Diab DCC) doesn't like argument names in returned function
4065 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4068 return ssl
->info_callback
;
4071 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4073 ssl
->verify_result
= arg
;
4076 long SSL_get_verify_result(const SSL
*ssl
)
4078 return ssl
->verify_result
;
4081 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4084 return sizeof(ssl
->s3
->client_random
);
4085 if (outlen
> sizeof(ssl
->s3
->client_random
))
4086 outlen
= sizeof(ssl
->s3
->client_random
);
4087 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4091 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4094 return sizeof(ssl
->s3
->server_random
);
4095 if (outlen
> sizeof(ssl
->s3
->server_random
))
4096 outlen
= sizeof(ssl
->s3
->server_random
);
4097 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4101 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4102 unsigned char *out
, size_t outlen
)
4105 return session
->master_key_length
;
4106 if (outlen
> session
->master_key_length
)
4107 outlen
= session
->master_key_length
;
4108 memcpy(out
, session
->master_key
, outlen
);
4112 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4115 if (len
> sizeof(sess
->master_key
))
4118 memcpy(sess
->master_key
, in
, len
);
4119 sess
->master_key_length
= len
;
4124 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4126 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4129 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4131 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4134 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4136 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4139 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4141 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4144 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4146 return ctx
->cert_store
;
4149 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4151 X509_STORE_free(ctx
->cert_store
);
4152 ctx
->cert_store
= store
;
4155 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4158 X509_STORE_up_ref(store
);
4159 SSL_CTX_set_cert_store(ctx
, store
);
4162 int SSL_want(const SSL
*s
)
4168 * \brief Set the callback for generating temporary DH keys.
4169 * \param ctx the SSL context.
4170 * \param dh the callback
4173 #ifndef OPENSSL_NO_DH
4174 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4175 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4178 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4181 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4184 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4188 #ifndef OPENSSL_NO_PSK
4189 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4191 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4192 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4195 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4196 if (identity_hint
!= NULL
) {
4197 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4198 if (ctx
->cert
->psk_identity_hint
== NULL
)
4201 ctx
->cert
->psk_identity_hint
= NULL
;
4205 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4210 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4211 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4214 OPENSSL_free(s
->cert
->psk_identity_hint
);
4215 if (identity_hint
!= NULL
) {
4216 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4217 if (s
->cert
->psk_identity_hint
== NULL
)
4220 s
->cert
->psk_identity_hint
= NULL
;
4224 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4226 if (s
== NULL
|| s
->session
== NULL
)
4228 return s
->session
->psk_identity_hint
;
4231 const char *SSL_get_psk_identity(const SSL
*s
)
4233 if (s
== NULL
|| s
->session
== NULL
)
4235 return s
->session
->psk_identity
;
4238 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4240 s
->psk_client_callback
= cb
;
4243 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4245 ctx
->psk_client_callback
= cb
;
4248 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4250 s
->psk_server_callback
= cb
;
4253 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4255 ctx
->psk_server_callback
= cb
;
4259 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4261 s
->psk_find_session_cb
= cb
;
4264 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4265 SSL_psk_find_session_cb_func cb
)
4267 ctx
->psk_find_session_cb
= cb
;
4270 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4272 s
->psk_use_session_cb
= cb
;
4275 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4276 SSL_psk_use_session_cb_func cb
)
4278 ctx
->psk_use_session_cb
= cb
;
4281 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4282 void (*cb
) (int write_p
, int version
,
4283 int content_type
, const void *buf
,
4284 size_t len
, SSL
*ssl
, void *arg
))
4286 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4289 void SSL_set_msg_callback(SSL
*ssl
,
4290 void (*cb
) (int write_p
, int version
,
4291 int content_type
, const void *buf
,
4292 size_t len
, SSL
*ssl
, void *arg
))
4294 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4297 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4298 int (*cb
) (SSL
*ssl
,
4302 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4303 (void (*)(void))cb
);
4306 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4307 int (*cb
) (SSL
*ssl
,
4308 int is_forward_secure
))
4310 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4311 (void (*)(void))cb
);
4314 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4315 size_t (*cb
) (SSL
*ssl
, int type
,
4316 size_t len
, void *arg
))
4318 ctx
->record_padding_cb
= cb
;
4321 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4323 ctx
->record_padding_arg
= arg
;
4326 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4328 return ctx
->record_padding_arg
;
4331 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4333 /* block size of 0 or 1 is basically no padding */
4334 if (block_size
== 1)
4335 ctx
->block_padding
= 0;
4336 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4337 ctx
->block_padding
= block_size
;
4343 void SSL_set_record_padding_callback(SSL
*ssl
,
4344 size_t (*cb
) (SSL
*ssl
, int type
,
4345 size_t len
, void *arg
))
4347 ssl
->record_padding_cb
= cb
;
4350 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4352 ssl
->record_padding_arg
= arg
;
4355 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4357 return ssl
->record_padding_arg
;
4360 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4362 /* block size of 0 or 1 is basically no padding */
4363 if (block_size
== 1)
4364 ssl
->block_padding
= 0;
4365 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4366 ssl
->block_padding
= block_size
;
4372 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4374 s
->num_tickets
= num_tickets
;
4379 size_t SSL_get_num_tickets(SSL
*s
)
4381 return s
->num_tickets
;
4384 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4386 ctx
->num_tickets
= num_tickets
;
4391 size_t SSL_CTX_get_num_tickets(SSL_CTX
*ctx
)
4393 return ctx
->num_tickets
;
4397 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4398 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4399 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4400 * Returns the newly allocated ctx;
4403 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4405 ssl_clear_hash_ctx(hash
);
4406 *hash
= EVP_MD_CTX_new();
4407 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4408 EVP_MD_CTX_free(*hash
);
4415 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4418 EVP_MD_CTX_free(*hash
);
4422 /* Retrieve handshake hashes */
4423 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4426 EVP_MD_CTX
*ctx
= NULL
;
4427 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4428 int hashleni
= EVP_MD_CTX_size(hdgst
);
4431 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4432 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4433 ERR_R_INTERNAL_ERROR
);
4437 ctx
= EVP_MD_CTX_new();
4441 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4442 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4443 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4444 ERR_R_INTERNAL_ERROR
);
4448 *hashlen
= hashleni
;
4452 EVP_MD_CTX_free(ctx
);
4456 int SSL_session_reused(SSL
*s
)
4461 int SSL_is_server(const SSL
*s
)
4466 #if OPENSSL_API_COMPAT < 0x10100000L
4467 void SSL_set_debug(SSL
*s
, int debug
)
4469 /* Old function was do-nothing anyway... */
4475 void SSL_set_security_level(SSL
*s
, int level
)
4477 s
->cert
->sec_level
= level
;
4480 int SSL_get_security_level(const SSL
*s
)
4482 return s
->cert
->sec_level
;
4485 void SSL_set_security_callback(SSL
*s
,
4486 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4487 int op
, int bits
, int nid
,
4488 void *other
, void *ex
))
4490 s
->cert
->sec_cb
= cb
;
4493 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4494 const SSL_CTX
*ctx
, int op
,
4495 int bits
, int nid
, void *other
,
4497 return s
->cert
->sec_cb
;
4500 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4502 s
->cert
->sec_ex
= ex
;
4505 void *SSL_get0_security_ex_data(const SSL
*s
)
4507 return s
->cert
->sec_ex
;
4510 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4512 ctx
->cert
->sec_level
= level
;
4515 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4517 return ctx
->cert
->sec_level
;
4520 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4521 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4522 int op
, int bits
, int nid
,
4523 void *other
, void *ex
))
4525 ctx
->cert
->sec_cb
= cb
;
4528 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4534 return ctx
->cert
->sec_cb
;
4537 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4539 ctx
->cert
->sec_ex
= ex
;
4542 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4544 return ctx
->cert
->sec_ex
;
4548 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4549 * can return unsigned long, instead of the generic long return value from the
4550 * control interface.
4552 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4554 return ctx
->options
;
4557 unsigned long SSL_get_options(const SSL
*s
)
4562 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4564 return ctx
->options
|= op
;
4567 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4569 return s
->options
|= op
;
4572 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4574 return ctx
->options
&= ~op
;
4577 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4579 return s
->options
&= ~op
;
4582 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4584 return s
->verified_chain
;
4587 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4589 #ifndef OPENSSL_NO_CT
4592 * Moves SCTs from the |src| stack to the |dst| stack.
4593 * The source of each SCT will be set to |origin|.
4594 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4596 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4598 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4599 sct_source_t origin
)
4605 *dst
= sk_SCT_new_null();
4607 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4612 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4613 if (SCT_set_source(sct
, origin
) != 1)
4616 if (sk_SCT_push(*dst
, sct
) <= 0)
4624 sk_SCT_push(src
, sct
); /* Put the SCT back */
4629 * Look for data collected during ServerHello and parse if found.
4630 * Returns the number of SCTs extracted.
4632 static int ct_extract_tls_extension_scts(SSL
*s
)
4634 int scts_extracted
= 0;
4636 if (s
->ext
.scts
!= NULL
) {
4637 const unsigned char *p
= s
->ext
.scts
;
4638 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4640 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4642 SCT_LIST_free(scts
);
4645 return scts_extracted
;
4649 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4650 * contains an SCT X509 extension. They will be stored in |s->scts|.
4652 * - The number of SCTs extracted, assuming an OCSP response exists.
4653 * - 0 if no OCSP response exists or it contains no SCTs.
4654 * - A negative integer if an error occurs.
4656 static int ct_extract_ocsp_response_scts(SSL
*s
)
4658 # ifndef OPENSSL_NO_OCSP
4659 int scts_extracted
= 0;
4660 const unsigned char *p
;
4661 OCSP_BASICRESP
*br
= NULL
;
4662 OCSP_RESPONSE
*rsp
= NULL
;
4663 STACK_OF(SCT
) *scts
= NULL
;
4666 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4669 p
= s
->ext
.ocsp
.resp
;
4670 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4674 br
= OCSP_response_get1_basic(rsp
);
4678 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4679 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4685 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4687 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4688 if (scts_extracted
< 0)
4692 SCT_LIST_free(scts
);
4693 OCSP_BASICRESP_free(br
);
4694 OCSP_RESPONSE_free(rsp
);
4695 return scts_extracted
;
4697 /* Behave as if no OCSP response exists */
4703 * Attempts to extract SCTs from the peer certificate.
4704 * Return the number of SCTs extracted, or a negative integer if an error
4707 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4709 int scts_extracted
= 0;
4710 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4713 STACK_OF(SCT
) *scts
=
4714 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4717 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4719 SCT_LIST_free(scts
);
4722 return scts_extracted
;
4726 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4727 * response (if it exists) and X509v3 extensions in the certificate.
4728 * Returns NULL if an error occurs.
4730 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4732 if (!s
->scts_parsed
) {
4733 if (ct_extract_tls_extension_scts(s
) < 0 ||
4734 ct_extract_ocsp_response_scts(s
) < 0 ||
4735 ct_extract_x509v3_extension_scts(s
) < 0)
4745 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4746 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4751 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4752 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4754 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4757 for (i
= 0; i
< count
; ++i
) {
4758 SCT
*sct
= sk_SCT_value(scts
, i
);
4759 int status
= SCT_get_validation_status(sct
);
4761 if (status
== SCT_VALIDATION_STATUS_VALID
)
4764 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4768 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4772 * Since code exists that uses the custom extension handler for CT, look
4773 * for this and throw an error if they have already registered to use CT.
4775 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4776 TLSEXT_TYPE_signed_certificate_timestamp
))
4778 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4779 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4783 if (callback
!= NULL
) {
4785 * If we are validating CT, then we MUST accept SCTs served via OCSP
4787 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4791 s
->ct_validation_callback
= callback
;
4792 s
->ct_validation_callback_arg
= arg
;
4797 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4798 ssl_ct_validation_cb callback
, void *arg
)
4801 * Since code exists that uses the custom extension handler for CT, look for
4802 * this and throw an error if they have already registered to use CT.
4804 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4805 TLSEXT_TYPE_signed_certificate_timestamp
))
4807 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4808 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4812 ctx
->ct_validation_callback
= callback
;
4813 ctx
->ct_validation_callback_arg
= arg
;
4817 int SSL_ct_is_enabled(const SSL
*s
)
4819 return s
->ct_validation_callback
!= NULL
;
4822 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4824 return ctx
->ct_validation_callback
!= NULL
;
4827 int ssl_validate_ct(SSL
*s
)
4830 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4832 SSL_DANE
*dane
= &s
->dane
;
4833 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4834 const STACK_OF(SCT
) *scts
;
4837 * If no callback is set, the peer is anonymous, or its chain is invalid,
4838 * skip SCT validation - just return success. Applications that continue
4839 * handshakes without certificates, with unverified chains, or pinned leaf
4840 * certificates are outside the scope of the WebPKI and CT.
4842 * The above exclusions notwithstanding the vast majority of peers will
4843 * have rather ordinary certificate chains validated by typical
4844 * applications that perform certificate verification and therefore will
4845 * process SCTs when enabled.
4847 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4848 s
->verify_result
!= X509_V_OK
||
4849 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4853 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4854 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4856 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4857 switch (dane
->mtlsa
->usage
) {
4858 case DANETLS_USAGE_DANE_TA
:
4859 case DANETLS_USAGE_DANE_EE
:
4864 ctx
= CT_POLICY_EVAL_CTX_new();
4866 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4867 ERR_R_MALLOC_FAILURE
);
4871 issuer
= sk_X509_value(s
->verified_chain
, 1);
4872 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4873 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4874 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4875 CT_POLICY_EVAL_CTX_set_time(
4876 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4878 scts
= SSL_get0_peer_scts(s
);
4881 * This function returns success (> 0) only when all the SCTs are valid, 0
4882 * when some are invalid, and < 0 on various internal errors (out of
4883 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4884 * reason to abort the handshake, that decision is up to the callback.
4885 * Therefore, we error out only in the unexpected case that the return
4886 * value is negative.
4888 * XXX: One might well argue that the return value of this function is an
4889 * unfortunate design choice. Its job is only to determine the validation
4890 * status of each of the provided SCTs. So long as it correctly separates
4891 * the wheat from the chaff it should return success. Failure in this case
4892 * ought to correspond to an inability to carry out its duties.
4894 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4895 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4896 SSL_R_SCT_VERIFICATION_FAILED
);
4900 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4902 ret
= 0; /* This function returns 0 on failure */
4904 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4905 SSL_R_CALLBACK_FAILED
);
4908 CT_POLICY_EVAL_CTX_free(ctx
);
4910 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4911 * failure return code here. Also the application may wish the complete
4912 * the handshake, and then disconnect cleanly at a higher layer, after
4913 * checking the verification status of the completed connection.
4915 * We therefore force a certificate verification failure which will be
4916 * visible via SSL_get_verify_result() and cached as part of any resumed
4919 * Note: the permissive callback is for information gathering only, always
4920 * returns success, and does not affect verification status. Only the
4921 * strict callback or a custom application-specified callback can trigger
4922 * connection failure or record a verification error.
4925 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4929 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4931 switch (validation_mode
) {
4933 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4935 case SSL_CT_VALIDATION_PERMISSIVE
:
4936 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4937 case SSL_CT_VALIDATION_STRICT
:
4938 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4942 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4944 switch (validation_mode
) {
4946 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4948 case SSL_CT_VALIDATION_PERMISSIVE
:
4949 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4950 case SSL_CT_VALIDATION_STRICT
:
4951 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4955 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4957 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4960 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4962 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4965 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4967 CTLOG_STORE_free(ctx
->ctlog_store
);
4968 ctx
->ctlog_store
= logs
;
4971 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4973 return ctx
->ctlog_store
;
4976 #endif /* OPENSSL_NO_CT */
4978 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4981 c
->client_hello_cb
= cb
;
4982 c
->client_hello_cb_arg
= arg
;
4985 int SSL_client_hello_isv2(SSL
*s
)
4987 if (s
->clienthello
== NULL
)
4989 return s
->clienthello
->isv2
;
4992 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4994 if (s
->clienthello
== NULL
)
4996 return s
->clienthello
->legacy_version
;
4999 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5001 if (s
->clienthello
== NULL
)
5004 *out
= s
->clienthello
->random
;
5005 return SSL3_RANDOM_SIZE
;
5008 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5010 if (s
->clienthello
== NULL
)
5013 *out
= s
->clienthello
->session_id
;
5014 return s
->clienthello
->session_id_len
;
5017 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5019 if (s
->clienthello
== NULL
)
5022 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5023 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5026 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5028 if (s
->clienthello
== NULL
)
5031 *out
= s
->clienthello
->compressions
;
5032 return s
->clienthello
->compressions_len
;
5035 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5041 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5043 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5044 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5048 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5049 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5050 ERR_R_MALLOC_FAILURE
);
5053 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5054 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5056 if (ext
->received_order
>= num
)
5058 present
[ext
->received_order
] = ext
->type
;
5065 OPENSSL_free(present
);
5069 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5075 if (s
->clienthello
== NULL
)
5077 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5078 r
= s
->clienthello
->pre_proc_exts
+ i
;
5079 if (r
->present
&& r
->type
== type
) {
5081 *out
= PACKET_data(&r
->data
);
5083 *outlen
= PACKET_remaining(&r
->data
);
5090 int SSL_free_buffers(SSL
*ssl
)
5092 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5094 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5097 RECORD_LAYER_release(rl
);
5101 int SSL_alloc_buffers(SSL
*ssl
)
5103 return ssl3_setup_buffers(ssl
);
5106 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5108 ctx
->keylog_callback
= cb
;
5111 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5113 return ctx
->keylog_callback
;
5116 static int nss_keylog_int(const char *prefix
,
5118 const uint8_t *parameter_1
,
5119 size_t parameter_1_len
,
5120 const uint8_t *parameter_2
,
5121 size_t parameter_2_len
)
5124 char *cursor
= NULL
;
5129 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
5132 * Our output buffer will contain the following strings, rendered with
5133 * space characters in between, terminated by a NULL character: first the
5134 * prefix, then the first parameter, then the second parameter. The
5135 * meaning of each parameter depends on the specific key material being
5136 * logged. Note that the first and second parameters are encoded in
5137 * hexadecimal, so we need a buffer that is twice their lengths.
5139 prefix_len
= strlen(prefix
);
5140 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
5141 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5142 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5143 ERR_R_MALLOC_FAILURE
);
5147 strcpy(cursor
, prefix
);
5148 cursor
+= prefix_len
;
5151 for (i
= 0; i
< parameter_1_len
; i
++) {
5152 sprintf(cursor
, "%02x", parameter_1
[i
]);
5157 for (i
= 0; i
< parameter_2_len
; i
++) {
5158 sprintf(cursor
, "%02x", parameter_2
[i
]);
5163 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5169 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5170 const uint8_t *encrypted_premaster
,
5171 size_t encrypted_premaster_len
,
5172 const uint8_t *premaster
,
5173 size_t premaster_len
)
5175 if (encrypted_premaster_len
< 8) {
5176 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5177 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5181 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5182 return nss_keylog_int("RSA",
5184 encrypted_premaster
,
5190 int ssl_log_secret(SSL
*ssl
,
5192 const uint8_t *secret
,
5195 return nss_keylog_int(label
,
5197 ssl
->s3
->client_random
,
5203 #define SSLV2_CIPHER_LEN 3
5205 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5209 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5211 if (PACKET_remaining(cipher_suites
) == 0) {
5212 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5213 SSL_R_NO_CIPHERS_SPECIFIED
);
5217 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5218 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5219 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5223 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5224 s
->s3
->tmp
.ciphers_raw
= NULL
;
5225 s
->s3
->tmp
.ciphers_rawlen
= 0;
5228 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5229 PACKET sslv2ciphers
= *cipher_suites
;
5230 unsigned int leadbyte
;
5234 * We store the raw ciphers list in SSLv3+ format so we need to do some
5235 * preprocessing to convert the list first. If there are any SSLv2 only
5236 * ciphersuites with a non-zero leading byte then we are going to
5237 * slightly over allocate because we won't store those. But that isn't a
5240 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5241 s
->s3
->tmp
.ciphers_raw
= raw
;
5243 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5244 ERR_R_MALLOC_FAILURE
);
5247 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5248 PACKET_remaining(&sslv2ciphers
) > 0;
5249 raw
+= TLS_CIPHER_LEN
) {
5250 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5252 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5255 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5256 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5258 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5259 s
->s3
->tmp
.ciphers_raw
= NULL
;
5260 s
->s3
->tmp
.ciphers_rawlen
= 0;
5264 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5266 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5267 &s
->s3
->tmp
.ciphers_rawlen
)) {
5268 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5269 ERR_R_INTERNAL_ERROR
);
5275 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5276 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5277 STACK_OF(SSL_CIPHER
) **scsvs
)
5281 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5283 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5286 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5287 STACK_OF(SSL_CIPHER
) **skp
,
5288 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5289 int sslv2format
, int fatal
)
5291 const SSL_CIPHER
*c
;
5292 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5293 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5295 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5296 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5298 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5300 if (PACKET_remaining(cipher_suites
) == 0) {
5302 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5303 SSL_R_NO_CIPHERS_SPECIFIED
);
5305 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5309 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5311 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5312 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5314 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5315 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5319 sk
= sk_SSL_CIPHER_new_null();
5320 scsvs
= sk_SSL_CIPHER_new_null();
5321 if (sk
== NULL
|| scsvs
== NULL
) {
5323 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5324 ERR_R_MALLOC_FAILURE
);
5326 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5330 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5332 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5333 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5334 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5336 if (sslv2format
&& cipher
[0] != '\0')
5339 /* For SSLv2-compat, ignore leading 0-byte. */
5340 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5342 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5343 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5345 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5346 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5348 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5353 if (PACKET_remaining(cipher_suites
) > 0) {
5355 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5358 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5365 sk_SSL_CIPHER_free(sk
);
5366 if (scsvs_out
!= NULL
)
5369 sk_SSL_CIPHER_free(scsvs
);
5372 sk_SSL_CIPHER_free(sk
);
5373 sk_SSL_CIPHER_free(scsvs
);
5377 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5379 ctx
->max_early_data
= max_early_data
;
5384 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5386 return ctx
->max_early_data
;
5389 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5391 s
->max_early_data
= max_early_data
;
5396 uint32_t SSL_get_max_early_data(const SSL
*s
)
5398 return s
->max_early_data
;
5401 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5403 ctx
->recv_max_early_data
= recv_max_early_data
;
5408 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5410 return ctx
->recv_max_early_data
;
5413 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5415 s
->recv_max_early_data
= recv_max_early_data
;
5420 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5422 return s
->recv_max_early_data
;
5425 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5427 /* Return any active Max Fragment Len extension */
5428 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5429 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5431 /* return current SSL connection setting */
5432 return ssl
->max_send_fragment
;
5435 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5437 /* Return a value regarding an active Max Fragment Len extension */
5438 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5439 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5440 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5442 /* else limit |split_send_fragment| to current |max_send_fragment| */
5443 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5444 return ssl
->max_send_fragment
;
5446 /* return current SSL connection setting */
5447 return ssl
->split_send_fragment
;
5450 int SSL_stateless(SSL
*s
)
5454 /* Ensure there is no state left over from a previous invocation */
5460 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5461 ret
= SSL_accept(s
);
5462 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5464 if (ret
> 0 && s
->ext
.cookieok
)
5467 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5473 void SSL_force_post_handshake_auth(SSL
*ssl
)
5475 ssl
->pha_forced
= 1;
5478 int SSL_verify_client_post_handshake(SSL
*ssl
)
5480 if (!SSL_IS_TLS13(ssl
)) {
5481 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5485 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5489 if (!SSL_is_init_finished(ssl
)) {
5490 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5494 switch (ssl
->post_handshake_auth
) {
5496 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5499 case SSL_PHA_EXT_SENT
:
5500 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5502 case SSL_PHA_EXT_RECEIVED
:
5504 case SSL_PHA_REQUEST_PENDING
:
5505 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5507 case SSL_PHA_REQUESTED
:
5508 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5512 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5514 /* checks verify_mode and algorithm_auth */
5515 if (!send_certificate_request(ssl
)) {
5516 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5517 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5521 ossl_statem_set_in_init(ssl
, 1);
5525 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5526 SSL_CTX_generate_session_ticket_fn gen_cb
,
5527 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5530 ctx
->generate_ticket_cb
= gen_cb
;
5531 ctx
->decrypt_ticket_cb
= dec_cb
;
5532 ctx
->ticket_cb_data
= arg
;
5536 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5537 SSL_allow_early_data_cb_fn cb
,
5540 ctx
->allow_early_data_cb
= cb
;
5541 ctx
->allow_early_data_cb_data
= arg
;
5544 void SSL_set_allow_early_data_cb(SSL
*s
,
5545 SSL_allow_early_data_cb_fn cb
,
5548 s
->allow_early_data_cb
= cb
;
5549 s
->allow_early_data_cb_data
= arg
;