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
->num_tickets
= ctx
->num_tickets
;
705 /* Shallow copy of the ciphersuites stack */
706 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
707 if (s
->tls13_ciphersuites
== NULL
)
711 * Earlier library versions used to copy the pointer to the CERT, not
712 * its contents; only when setting new parameters for the per-SSL
713 * copy, ssl_cert_new would be called (and the direct reference to
714 * the per-SSL_CTX settings would be lost, but those still were
715 * indirectly accessed for various purposes, and for that reason they
716 * used to be known as s->ctx->default_cert). Now we don't look at the
717 * SSL_CTX's CERT after having duplicated it once.
719 s
->cert
= ssl_cert_dup(ctx
->cert
);
723 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
724 s
->msg_callback
= ctx
->msg_callback
;
725 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
726 s
->verify_mode
= ctx
->verify_mode
;
727 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
728 s
->record_padding_cb
= ctx
->record_padding_cb
;
729 s
->record_padding_arg
= ctx
->record_padding_arg
;
730 s
->block_padding
= ctx
->block_padding
;
731 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
732 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
734 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
735 s
->verify_callback
= ctx
->default_verify_callback
;
736 s
->generate_session_id
= ctx
->generate_session_id
;
738 s
->param
= X509_VERIFY_PARAM_new();
739 if (s
->param
== NULL
)
741 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
742 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
744 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
745 s
->max_send_fragment
= ctx
->max_send_fragment
;
746 s
->split_send_fragment
= ctx
->split_send_fragment
;
747 s
->max_pipelines
= ctx
->max_pipelines
;
748 if (s
->max_pipelines
> 1)
749 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
750 if (ctx
->default_read_buf_len
> 0)
751 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
756 s
->ext
.debug_arg
= NULL
;
757 s
->ext
.ticket_expected
= 0;
758 s
->ext
.status_type
= ctx
->ext
.status_type
;
759 s
->ext
.status_expected
= 0;
760 s
->ext
.ocsp
.ids
= NULL
;
761 s
->ext
.ocsp
.exts
= NULL
;
762 s
->ext
.ocsp
.resp
= NULL
;
763 s
->ext
.ocsp
.resp_len
= 0;
765 s
->session_ctx
= ctx
;
766 #ifndef OPENSSL_NO_EC
767 if (ctx
->ext
.ecpointformats
) {
768 s
->ext
.ecpointformats
=
769 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
770 ctx
->ext
.ecpointformats_len
);
771 if (!s
->ext
.ecpointformats
)
773 s
->ext
.ecpointformats_len
=
774 ctx
->ext
.ecpointformats_len
;
776 if (ctx
->ext
.supportedgroups
) {
777 s
->ext
.supportedgroups
=
778 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
779 ctx
->ext
.supportedgroups_len
780 * sizeof(*ctx
->ext
.supportedgroups
));
781 if (!s
->ext
.supportedgroups
)
783 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
786 #ifndef OPENSSL_NO_NEXTPROTONEG
790 if (s
->ctx
->ext
.alpn
) {
791 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
792 if (s
->ext
.alpn
== NULL
)
794 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
795 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
798 s
->verified_chain
= NULL
;
799 s
->verify_result
= X509_V_OK
;
801 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
802 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
804 s
->method
= ctx
->method
;
806 s
->key_update
= SSL_KEY_UPDATE_NONE
;
808 if (!s
->method
->ssl_new(s
))
811 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
816 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
819 #ifndef OPENSSL_NO_PSK
820 s
->psk_client_callback
= ctx
->psk_client_callback
;
821 s
->psk_server_callback
= ctx
->psk_server_callback
;
823 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
824 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
828 #ifndef OPENSSL_NO_CT
829 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
830 ctx
->ct_validation_callback_arg
))
837 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
841 int SSL_is_dtls(const SSL
*s
)
843 return SSL_IS_DTLS(s
) ? 1 : 0;
846 int SSL_up_ref(SSL
*s
)
850 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
853 REF_PRINT_COUNT("SSL", s
);
854 REF_ASSERT_ISNT(i
< 2);
855 return ((i
> 1) ? 1 : 0);
858 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
859 unsigned int sid_ctx_len
)
861 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
862 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
863 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
866 ctx
->sid_ctx_length
= sid_ctx_len
;
867 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
872 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
873 unsigned int sid_ctx_len
)
875 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
876 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
877 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
880 ssl
->sid_ctx_length
= sid_ctx_len
;
881 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
886 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
888 CRYPTO_THREAD_write_lock(ctx
->lock
);
889 ctx
->generate_session_id
= cb
;
890 CRYPTO_THREAD_unlock(ctx
->lock
);
894 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
896 CRYPTO_THREAD_write_lock(ssl
->lock
);
897 ssl
->generate_session_id
= cb
;
898 CRYPTO_THREAD_unlock(ssl
->lock
);
902 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
906 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
907 * we can "construct" a session to give us the desired check - i.e. to
908 * find if there's a session in the hash table that would conflict with
909 * any new session built out of this id/id_len and the ssl_version in use
914 if (id_len
> sizeof(r
.session_id
))
917 r
.ssl_version
= ssl
->version
;
918 r
.session_id_length
= id_len
;
919 memcpy(r
.session_id
, id
, id_len
);
921 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
922 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
923 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
927 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
929 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
932 int SSL_set_purpose(SSL
*s
, int purpose
)
934 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
937 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
939 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
942 int SSL_set_trust(SSL
*s
, int trust
)
944 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
947 int SSL_set1_host(SSL
*s
, const char *hostname
)
949 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
952 int SSL_add1_host(SSL
*s
, const char *hostname
)
954 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
957 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
959 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
962 const char *SSL_get0_peername(SSL
*s
)
964 return X509_VERIFY_PARAM_get0_peername(s
->param
);
967 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
969 return dane_ctx_enable(&ctx
->dane
);
972 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
974 unsigned long orig
= ctx
->dane
.flags
;
976 ctx
->dane
.flags
|= flags
;
980 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
982 unsigned long orig
= ctx
->dane
.flags
;
984 ctx
->dane
.flags
&= ~flags
;
988 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
990 SSL_DANE
*dane
= &s
->dane
;
992 if (s
->ctx
->dane
.mdmax
== 0) {
993 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
996 if (dane
->trecs
!= NULL
) {
997 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1002 * Default SNI name. This rejects empty names, while set1_host below
1003 * accepts them and disables host name checks. To avoid side-effects with
1004 * invalid input, set the SNI name first.
1006 if (s
->ext
.hostname
== NULL
) {
1007 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1008 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1013 /* Primary RFC6125 reference identifier */
1014 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1015 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1021 dane
->dctx
= &s
->ctx
->dane
;
1022 dane
->trecs
= sk_danetls_record_new_null();
1024 if (dane
->trecs
== NULL
) {
1025 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1031 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1033 unsigned long orig
= ssl
->dane
.flags
;
1035 ssl
->dane
.flags
|= flags
;
1039 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1041 unsigned long orig
= ssl
->dane
.flags
;
1043 ssl
->dane
.flags
&= ~flags
;
1047 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1049 SSL_DANE
*dane
= &s
->dane
;
1051 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1055 *mcert
= dane
->mcert
;
1057 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1062 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1063 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1065 SSL_DANE
*dane
= &s
->dane
;
1067 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1071 *usage
= dane
->mtlsa
->usage
;
1073 *selector
= dane
->mtlsa
->selector
;
1075 *mtype
= dane
->mtlsa
->mtype
;
1077 *data
= dane
->mtlsa
->data
;
1079 *dlen
= dane
->mtlsa
->dlen
;
1084 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1089 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1090 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1092 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1095 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1098 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1101 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1103 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1106 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1108 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1111 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1116 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1121 void SSL_certs_clear(SSL
*s
)
1123 ssl_cert_clear_certs(s
->cert
);
1126 void SSL_free(SSL
*s
)
1132 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1133 REF_PRINT_COUNT("SSL", s
);
1136 REF_ASSERT_ISNT(i
< 0);
1138 X509_VERIFY_PARAM_free(s
->param
);
1139 dane_final(&s
->dane
);
1140 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1142 /* Ignore return value */
1143 ssl_free_wbio_buffer(s
);
1145 BIO_free_all(s
->wbio
);
1146 BIO_free_all(s
->rbio
);
1148 BUF_MEM_free(s
->init_buf
);
1150 /* add extra stuff */
1151 sk_SSL_CIPHER_free(s
->cipher_list
);
1152 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1153 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1155 /* Make the next call work :-) */
1156 if (s
->session
!= NULL
) {
1157 ssl_clear_bad_session(s
);
1158 SSL_SESSION_free(s
->session
);
1160 SSL_SESSION_free(s
->psksession
);
1161 OPENSSL_free(s
->psksession_id
);
1165 ssl_cert_free(s
->cert
);
1166 /* Free up if allocated */
1168 OPENSSL_free(s
->ext
.hostname
);
1169 SSL_CTX_free(s
->session_ctx
);
1170 #ifndef OPENSSL_NO_EC
1171 OPENSSL_free(s
->ext
.ecpointformats
);
1172 OPENSSL_free(s
->ext
.supportedgroups
);
1173 #endif /* OPENSSL_NO_EC */
1174 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1175 #ifndef OPENSSL_NO_OCSP
1176 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1178 #ifndef OPENSSL_NO_CT
1179 SCT_LIST_free(s
->scts
);
1180 OPENSSL_free(s
->ext
.scts
);
1182 OPENSSL_free(s
->ext
.ocsp
.resp
);
1183 OPENSSL_free(s
->ext
.alpn
);
1184 OPENSSL_free(s
->ext
.tls13_cookie
);
1185 OPENSSL_free(s
->clienthello
);
1186 OPENSSL_free(s
->pha_context
);
1187 EVP_MD_CTX_free(s
->pha_dgst
);
1189 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1191 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1193 if (s
->method
!= NULL
)
1194 s
->method
->ssl_free(s
);
1196 RECORD_LAYER_release(&s
->rlayer
);
1198 SSL_CTX_free(s
->ctx
);
1200 ASYNC_WAIT_CTX_free(s
->waitctx
);
1202 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1203 OPENSSL_free(s
->ext
.npn
);
1206 #ifndef OPENSSL_NO_SRTP
1207 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1210 CRYPTO_THREAD_lock_free(s
->lock
);
1215 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1217 BIO_free_all(s
->rbio
);
1221 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1224 * If the output buffering BIO is still in place, remove it
1226 if (s
->bbio
!= NULL
)
1227 s
->wbio
= BIO_pop(s
->wbio
);
1229 BIO_free_all(s
->wbio
);
1232 /* Re-attach |bbio| to the new |wbio|. */
1233 if (s
->bbio
!= NULL
)
1234 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1237 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1240 * For historical reasons, this function has many different cases in
1241 * ownership handling.
1244 /* If nothing has changed, do nothing */
1245 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1249 * If the two arguments are equal then one fewer reference is granted by the
1250 * caller than we want to take
1252 if (rbio
!= NULL
&& rbio
== wbio
)
1256 * If only the wbio is changed only adopt one reference.
1258 if (rbio
== SSL_get_rbio(s
)) {
1259 SSL_set0_wbio(s
, wbio
);
1263 * There is an asymmetry here for historical reasons. If only the rbio is
1264 * changed AND the rbio and wbio were originally different, then we only
1265 * adopt one reference.
1267 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1268 SSL_set0_rbio(s
, rbio
);
1272 /* Otherwise, adopt both references. */
1273 SSL_set0_rbio(s
, rbio
);
1274 SSL_set0_wbio(s
, wbio
);
1277 BIO
*SSL_get_rbio(const SSL
*s
)
1282 BIO
*SSL_get_wbio(const SSL
*s
)
1284 if (s
->bbio
!= NULL
) {
1286 * If |bbio| is active, the true caller-configured BIO is its
1289 return BIO_next(s
->bbio
);
1294 int SSL_get_fd(const SSL
*s
)
1296 return SSL_get_rfd(s
);
1299 int SSL_get_rfd(const SSL
*s
)
1304 b
= SSL_get_rbio(s
);
1305 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1307 BIO_get_fd(r
, &ret
);
1311 int SSL_get_wfd(const SSL
*s
)
1316 b
= SSL_get_wbio(s
);
1317 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1319 BIO_get_fd(r
, &ret
);
1323 #ifndef OPENSSL_NO_SOCK
1324 int SSL_set_fd(SSL
*s
, int fd
)
1329 bio
= BIO_new(BIO_s_socket());
1332 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1335 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1336 SSL_set_bio(s
, bio
, bio
);
1342 int SSL_set_wfd(SSL
*s
, int fd
)
1344 BIO
*rbio
= SSL_get_rbio(s
);
1346 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1347 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1348 BIO
*bio
= BIO_new(BIO_s_socket());
1351 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1354 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1355 SSL_set0_wbio(s
, bio
);
1358 SSL_set0_wbio(s
, rbio
);
1363 int SSL_set_rfd(SSL
*s
, int fd
)
1365 BIO
*wbio
= SSL_get_wbio(s
);
1367 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1368 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1369 BIO
*bio
= BIO_new(BIO_s_socket());
1372 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1375 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1376 SSL_set0_rbio(s
, bio
);
1379 SSL_set0_rbio(s
, wbio
);
1386 /* return length of latest Finished message we sent, copy to 'buf' */
1387 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1391 if (s
->s3
!= NULL
) {
1392 ret
= s
->s3
->tmp
.finish_md_len
;
1395 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1400 /* return length of latest Finished message we expected, copy to 'buf' */
1401 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1405 if (s
->s3
!= NULL
) {
1406 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1409 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1414 int SSL_get_verify_mode(const SSL
*s
)
1416 return s
->verify_mode
;
1419 int SSL_get_verify_depth(const SSL
*s
)
1421 return X509_VERIFY_PARAM_get_depth(s
->param
);
1424 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1425 return s
->verify_callback
;
1428 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1430 return ctx
->verify_mode
;
1433 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1435 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1438 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1439 return ctx
->default_verify_callback
;
1442 void SSL_set_verify(SSL
*s
, int mode
,
1443 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1445 s
->verify_mode
= mode
;
1446 if (callback
!= NULL
)
1447 s
->verify_callback
= callback
;
1450 void SSL_set_verify_depth(SSL
*s
, int depth
)
1452 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1455 void SSL_set_read_ahead(SSL
*s
, int yes
)
1457 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1460 int SSL_get_read_ahead(const SSL
*s
)
1462 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1465 int SSL_pending(const SSL
*s
)
1467 size_t pending
= s
->method
->ssl_pending(s
);
1470 * SSL_pending cannot work properly if read-ahead is enabled
1471 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1472 * impossible to fix since SSL_pending cannot report errors that may be
1473 * observed while scanning the new data. (Note that SSL_pending() is
1474 * often used as a boolean value, so we'd better not return -1.)
1476 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1477 * we just return INT_MAX.
1479 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1482 int SSL_has_pending(const SSL
*s
)
1485 * Similar to SSL_pending() but returns a 1 to indicate that we have
1486 * unprocessed data available or 0 otherwise (as opposed to the number of
1487 * bytes available). Unlike SSL_pending() this will take into account
1488 * read_ahead data. A 1 return simply indicates that we have unprocessed
1489 * data. That data may not result in any application data, or we may fail
1490 * to parse the records for some reason.
1492 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1495 return RECORD_LAYER_read_pending(&s
->rlayer
);
1498 X509
*SSL_get_peer_certificate(const SSL
*s
)
1502 if ((s
== NULL
) || (s
->session
== NULL
))
1505 r
= s
->session
->peer
;
1515 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1519 if ((s
== NULL
) || (s
->session
== NULL
))
1522 r
= s
->session
->peer_chain
;
1525 * If we are a client, cert_chain includes the peer's own certificate; if
1526 * we are a server, it does not.
1533 * Now in theory, since the calling process own 't' it should be safe to
1534 * modify. We need to be able to read f without being hassled
1536 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1539 /* Do we need to to SSL locking? */
1540 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1545 * what if we are setup for one protocol version but want to talk another
1547 if (t
->method
!= f
->method
) {
1548 t
->method
->ssl_free(t
);
1549 t
->method
= f
->method
;
1550 if (t
->method
->ssl_new(t
) == 0)
1554 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1555 ssl_cert_free(t
->cert
);
1557 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1564 /* Fix this so it checks all the valid key/cert options */
1565 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1567 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1568 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1571 if (ctx
->cert
->key
->privatekey
== NULL
) {
1572 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1575 return X509_check_private_key
1576 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1579 /* Fix this function so that it takes an optional type parameter */
1580 int SSL_check_private_key(const SSL
*ssl
)
1583 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1586 if (ssl
->cert
->key
->x509
== NULL
) {
1587 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1590 if (ssl
->cert
->key
->privatekey
== NULL
) {
1591 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1594 return X509_check_private_key(ssl
->cert
->key
->x509
,
1595 ssl
->cert
->key
->privatekey
);
1598 int SSL_waiting_for_async(SSL
*s
)
1606 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1608 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1612 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1615 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1616 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1618 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1622 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1626 int SSL_accept(SSL
*s
)
1628 if (s
->handshake_func
== NULL
) {
1629 /* Not properly initialized yet */
1630 SSL_set_accept_state(s
);
1633 return SSL_do_handshake(s
);
1636 int SSL_connect(SSL
*s
)
1638 if (s
->handshake_func
== NULL
) {
1639 /* Not properly initialized yet */
1640 SSL_set_connect_state(s
);
1643 return SSL_do_handshake(s
);
1646 long SSL_get_default_timeout(const SSL
*s
)
1648 return s
->method
->get_timeout();
1651 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1652 int (*func
) (void *))
1655 if (s
->waitctx
== NULL
) {
1656 s
->waitctx
= ASYNC_WAIT_CTX_new();
1657 if (s
->waitctx
== NULL
)
1660 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1661 sizeof(struct ssl_async_args
))) {
1663 s
->rwstate
= SSL_NOTHING
;
1664 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1667 s
->rwstate
= SSL_ASYNC_PAUSED
;
1670 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1676 s
->rwstate
= SSL_NOTHING
;
1677 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1678 /* Shouldn't happen */
1683 static int ssl_io_intern(void *vargs
)
1685 struct ssl_async_args
*args
;
1690 args
= (struct ssl_async_args
*)vargs
;
1694 switch (args
->type
) {
1696 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1698 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1700 return args
->f
.func_other(s
);
1705 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1707 if (s
->handshake_func
== NULL
) {
1708 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1712 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1713 s
->rwstate
= SSL_NOTHING
;
1717 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1718 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1719 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1723 * If we are a client and haven't received the ServerHello etc then we
1726 ossl_statem_check_finish_init(s
, 0);
1728 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1729 struct ssl_async_args args
;
1735 args
.type
= READFUNC
;
1736 args
.f
.func_read
= s
->method
->ssl_read
;
1738 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1739 *readbytes
= s
->asyncrw
;
1742 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1746 int SSL_read(SSL
*s
, void *buf
, int num
)
1752 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1756 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1759 * The cast is safe here because ret should be <= INT_MAX because num is
1763 ret
= (int)readbytes
;
1768 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1770 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1777 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1782 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1783 return SSL_READ_EARLY_DATA_ERROR
;
1786 switch (s
->early_data_state
) {
1787 case SSL_EARLY_DATA_NONE
:
1788 if (!SSL_in_before(s
)) {
1789 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1790 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1791 return SSL_READ_EARLY_DATA_ERROR
;
1795 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1796 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1797 ret
= SSL_accept(s
);
1800 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1801 return SSL_READ_EARLY_DATA_ERROR
;
1805 case SSL_EARLY_DATA_READ_RETRY
:
1806 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1807 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1808 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1810 * State machine will update early_data_state to
1811 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1814 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1815 != SSL_EARLY_DATA_FINISHED_READING
)) {
1816 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1817 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1818 : SSL_READ_EARLY_DATA_ERROR
;
1821 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1824 return SSL_READ_EARLY_DATA_FINISH
;
1827 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1828 return SSL_READ_EARLY_DATA_ERROR
;
1832 int SSL_get_early_data_status(const SSL
*s
)
1834 return s
->ext
.early_data
;
1837 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1839 if (s
->handshake_func
== NULL
) {
1840 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1844 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1847 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1848 struct ssl_async_args args
;
1854 args
.type
= READFUNC
;
1855 args
.f
.func_read
= s
->method
->ssl_peek
;
1857 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1858 *readbytes
= s
->asyncrw
;
1861 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1865 int SSL_peek(SSL
*s
, void *buf
, int num
)
1871 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1875 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1878 * The cast is safe here because ret should be <= INT_MAX because num is
1882 ret
= (int)readbytes
;
1888 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1890 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1897 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1899 if (s
->handshake_func
== NULL
) {
1900 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1904 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1905 s
->rwstate
= SSL_NOTHING
;
1906 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1910 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1911 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1912 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1913 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1916 /* If we are a client and haven't sent the Finished we better do that */
1917 ossl_statem_check_finish_init(s
, 1);
1919 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1921 struct ssl_async_args args
;
1924 args
.buf
= (void *)buf
;
1926 args
.type
= WRITEFUNC
;
1927 args
.f
.func_write
= s
->method
->ssl_write
;
1929 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1930 *written
= s
->asyncrw
;
1933 return s
->method
->ssl_write(s
, buf
, num
, written
);
1937 int SSL_write(SSL
*s
, const void *buf
, int num
)
1943 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1947 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1950 * The cast is safe here because ret should be <= INT_MAX because num is
1959 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1961 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1968 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1970 int ret
, early_data_state
;
1972 uint32_t partialwrite
;
1974 switch (s
->early_data_state
) {
1975 case SSL_EARLY_DATA_NONE
:
1977 || !SSL_in_before(s
)
1978 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1979 && (s
->psk_use_session_cb
== NULL
))) {
1980 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1981 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1986 case SSL_EARLY_DATA_CONNECT_RETRY
:
1987 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1988 ret
= SSL_connect(s
);
1991 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1996 case SSL_EARLY_DATA_WRITE_RETRY
:
1997 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1999 * We disable partial write for early data because we don't keep track
2000 * of how many bytes we've written between the SSL_write_ex() call and
2001 * the flush if the flush needs to be retried)
2003 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2004 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2005 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2006 s
->mode
|= partialwrite
;
2008 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2011 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2014 case SSL_EARLY_DATA_WRITE_FLUSH
:
2015 /* The buffering BIO is still in place so we need to flush it */
2016 if (statem_flush(s
) != 1)
2019 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2022 case SSL_EARLY_DATA_FINISHED_READING
:
2023 case SSL_EARLY_DATA_READ_RETRY
:
2024 early_data_state
= s
->early_data_state
;
2025 /* We are a server writing to an unauthenticated client */
2026 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2027 ret
= SSL_write_ex(s
, buf
, num
, written
);
2028 /* The buffering BIO is still in place */
2030 (void)BIO_flush(s
->wbio
);
2031 s
->early_data_state
= early_data_state
;
2035 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2040 int SSL_shutdown(SSL
*s
)
2043 * Note that this function behaves differently from what one might
2044 * expect. Return values are 0 for no success (yet), 1 for success; but
2045 * calling it once is usually not enough, even if blocking I/O is used
2046 * (see ssl3_shutdown).
2049 if (s
->handshake_func
== NULL
) {
2050 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2054 if (!SSL_in_init(s
)) {
2055 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2056 struct ssl_async_args args
;
2059 args
.type
= OTHERFUNC
;
2060 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2062 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2064 return s
->method
->ssl_shutdown(s
);
2067 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2072 int SSL_key_update(SSL
*s
, int updatetype
)
2075 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2076 * negotiated, and that it is appropriate to call SSL_key_update() instead
2077 * of SSL_renegotiate().
2079 if (!SSL_IS_TLS13(s
)) {
2080 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2084 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2085 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2086 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2090 if (!SSL_is_init_finished(s
)) {
2091 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2095 ossl_statem_set_in_init(s
, 1);
2096 s
->key_update
= updatetype
;
2100 int SSL_get_key_update_type(SSL
*s
)
2102 return s
->key_update
;
2105 int SSL_renegotiate(SSL
*s
)
2107 if (SSL_IS_TLS13(s
)) {
2108 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2112 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2113 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2120 return s
->method
->ssl_renegotiate(s
);
2123 int SSL_renegotiate_abbreviated(SSL
*s
)
2125 if (SSL_IS_TLS13(s
)) {
2126 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2130 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2131 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2138 return s
->method
->ssl_renegotiate(s
);
2141 int SSL_renegotiate_pending(SSL
*s
)
2144 * becomes true when negotiation is requested; false again once a
2145 * handshake has finished
2147 return (s
->renegotiate
!= 0);
2150 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2155 case SSL_CTRL_GET_READ_AHEAD
:
2156 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2157 case SSL_CTRL_SET_READ_AHEAD
:
2158 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2159 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2162 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2163 s
->msg_callback_arg
= parg
;
2167 return (s
->mode
|= larg
);
2168 case SSL_CTRL_CLEAR_MODE
:
2169 return (s
->mode
&= ~larg
);
2170 case SSL_CTRL_GET_MAX_CERT_LIST
:
2171 return (long)s
->max_cert_list
;
2172 case SSL_CTRL_SET_MAX_CERT_LIST
:
2175 l
= (long)s
->max_cert_list
;
2176 s
->max_cert_list
= (size_t)larg
;
2178 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2179 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2181 s
->max_send_fragment
= larg
;
2182 if (s
->max_send_fragment
< s
->split_send_fragment
)
2183 s
->split_send_fragment
= s
->max_send_fragment
;
2185 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2186 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2188 s
->split_send_fragment
= larg
;
2190 case SSL_CTRL_SET_MAX_PIPELINES
:
2191 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2193 s
->max_pipelines
= larg
;
2195 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2197 case SSL_CTRL_GET_RI_SUPPORT
:
2199 return s
->s3
->send_connection_binding
;
2202 case SSL_CTRL_CERT_FLAGS
:
2203 return (s
->cert
->cert_flags
|= larg
);
2204 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2205 return (s
->cert
->cert_flags
&= ~larg
);
2207 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2209 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2211 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2212 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2214 return TLS_CIPHER_LEN
;
2216 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2217 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2219 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2223 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2224 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2225 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2226 &s
->min_proto_version
);
2227 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2228 return s
->min_proto_version
;
2229 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2230 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2231 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2232 &s
->max_proto_version
);
2233 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2234 return s
->max_proto_version
;
2236 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2240 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2243 case SSL_CTRL_SET_MSG_CALLBACK
:
2244 s
->msg_callback
= (void (*)
2245 (int write_p
, int version
, int content_type
,
2246 const void *buf
, size_t len
, SSL
*ssl
,
2251 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2255 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2257 return ctx
->sessions
;
2260 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2264 /* For some cases with ctx == NULL perform syntax checks */
2267 #ifndef OPENSSL_NO_EC
2268 case SSL_CTRL_SET_GROUPS_LIST
:
2269 return tls1_set_groups_list(NULL
, NULL
, parg
);
2271 case SSL_CTRL_SET_SIGALGS_LIST
:
2272 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2273 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2280 case SSL_CTRL_GET_READ_AHEAD
:
2281 return ctx
->read_ahead
;
2282 case SSL_CTRL_SET_READ_AHEAD
:
2283 l
= ctx
->read_ahead
;
2284 ctx
->read_ahead
= larg
;
2287 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2288 ctx
->msg_callback_arg
= parg
;
2291 case SSL_CTRL_GET_MAX_CERT_LIST
:
2292 return (long)ctx
->max_cert_list
;
2293 case SSL_CTRL_SET_MAX_CERT_LIST
:
2296 l
= (long)ctx
->max_cert_list
;
2297 ctx
->max_cert_list
= (size_t)larg
;
2300 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2303 l
= (long)ctx
->session_cache_size
;
2304 ctx
->session_cache_size
= (size_t)larg
;
2306 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2307 return (long)ctx
->session_cache_size
;
2308 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2309 l
= ctx
->session_cache_mode
;
2310 ctx
->session_cache_mode
= larg
;
2312 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2313 return ctx
->session_cache_mode
;
2315 case SSL_CTRL_SESS_NUMBER
:
2316 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2317 case SSL_CTRL_SESS_CONNECT
:
2318 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect
, &i
, ctx
->lock
)
2320 case SSL_CTRL_SESS_CONNECT_GOOD
:
2321 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_good
, &i
, ctx
->lock
)
2323 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2324 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_renegotiate
, &i
,
2327 case SSL_CTRL_SESS_ACCEPT
:
2328 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept
, &i
, ctx
->lock
)
2330 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2331 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_good
, &i
, ctx
->lock
)
2333 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2334 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_renegotiate
, &i
,
2337 case SSL_CTRL_SESS_HIT
:
2338 return CRYPTO_atomic_read(&ctx
->stats
.sess_hit
, &i
, ctx
->lock
)
2340 case SSL_CTRL_SESS_CB_HIT
:
2341 return CRYPTO_atomic_read(&ctx
->stats
.sess_cb_hit
, &i
, ctx
->lock
)
2343 case SSL_CTRL_SESS_MISSES
:
2344 return CRYPTO_atomic_read(&ctx
->stats
.sess_miss
, &i
, ctx
->lock
)
2346 case SSL_CTRL_SESS_TIMEOUTS
:
2347 return CRYPTO_atomic_read(&ctx
->stats
.sess_timeout
, &i
, ctx
->lock
)
2349 case SSL_CTRL_SESS_CACHE_FULL
:
2350 return CRYPTO_atomic_read(&ctx
->stats
.sess_cache_full
, &i
, ctx
->lock
)
2353 return (ctx
->mode
|= larg
);
2354 case SSL_CTRL_CLEAR_MODE
:
2355 return (ctx
->mode
&= ~larg
);
2356 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2357 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2359 ctx
->max_send_fragment
= larg
;
2360 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2361 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2363 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2364 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2366 ctx
->split_send_fragment
= larg
;
2368 case SSL_CTRL_SET_MAX_PIPELINES
:
2369 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2371 ctx
->max_pipelines
= larg
;
2373 case SSL_CTRL_CERT_FLAGS
:
2374 return (ctx
->cert
->cert_flags
|= larg
);
2375 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2376 return (ctx
->cert
->cert_flags
&= ~larg
);
2377 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2378 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2379 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2380 &ctx
->min_proto_version
);
2381 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2382 return ctx
->min_proto_version
;
2383 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2384 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2385 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2386 &ctx
->max_proto_version
);
2387 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2388 return ctx
->max_proto_version
;
2390 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2394 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2397 case SSL_CTRL_SET_MSG_CALLBACK
:
2398 ctx
->msg_callback
= (void (*)
2399 (int write_p
, int version
, int content_type
,
2400 const void *buf
, size_t len
, SSL
*ssl
,
2405 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2409 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2418 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2419 const SSL_CIPHER
*const *bp
)
2421 if ((*ap
)->id
> (*bp
)->id
)
2423 if ((*ap
)->id
< (*bp
)->id
)
2428 /** return a STACK of the ciphers available for the SSL and in order of
2430 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2433 if (s
->cipher_list
!= NULL
) {
2434 return s
->cipher_list
;
2435 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2436 return s
->ctx
->cipher_list
;
2442 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2444 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2446 return s
->session
->ciphers
;
2449 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2451 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2454 ciphers
= SSL_get_ciphers(s
);
2457 if (!ssl_set_client_disabled(s
))
2459 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2460 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2461 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2463 sk
= sk_SSL_CIPHER_new_null();
2466 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2467 sk_SSL_CIPHER_free(sk
);
2475 /** return a STACK of the ciphers available for the SSL and in order of
2477 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2480 if (s
->cipher_list_by_id
!= NULL
) {
2481 return s
->cipher_list_by_id
;
2482 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2483 return s
->ctx
->cipher_list_by_id
;
2489 /** The old interface to get the same thing as SSL_get_ciphers() */
2490 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2492 const SSL_CIPHER
*c
;
2493 STACK_OF(SSL_CIPHER
) *sk
;
2497 sk
= SSL_get_ciphers(s
);
2498 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2500 c
= sk_SSL_CIPHER_value(sk
, n
);
2506 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2508 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2511 return ctx
->cipher_list
;
2515 /** specify the ciphers to be used by default by the SSL_CTX */
2516 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2518 STACK_OF(SSL_CIPHER
) *sk
;
2520 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2521 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2524 * ssl_create_cipher_list may return an empty stack if it was unable to
2525 * find a cipher matching the given rule string (for example if the rule
2526 * string specifies a cipher which has been disabled). This is not an
2527 * error as far as ssl_create_cipher_list is concerned, and hence
2528 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2532 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2533 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2539 /** specify the ciphers to be used by the SSL */
2540 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2542 STACK_OF(SSL_CIPHER
) *sk
;
2544 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2545 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2547 /* see comment in SSL_CTX_set_cipher_list */
2550 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2551 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2557 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2560 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2561 const SSL_CIPHER
*c
;
2565 || s
->session
== NULL
2566 || s
->session
->ciphers
== NULL
2571 clntsk
= s
->session
->ciphers
;
2572 srvrsk
= SSL_get_ciphers(s
);
2573 if (clntsk
== NULL
|| srvrsk
== NULL
)
2576 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2579 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2582 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2583 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2586 n
= strlen(c
->name
);
2602 /** return a servername extension value if provided in Client Hello, or NULL.
2603 * So far, only host_name types are defined (RFC 3546).
2606 const char *SSL_get_servername(const SSL
*s
, const int type
)
2608 if (type
!= TLSEXT_NAMETYPE_host_name
)
2611 return s
->session
&& !s
->ext
.hostname
?
2612 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2615 int SSL_get_servername_type(const SSL
*s
)
2618 && (!s
->ext
.hostname
? s
->session
->
2619 ext
.hostname
: s
->ext
.hostname
))
2620 return TLSEXT_NAMETYPE_host_name
;
2625 * SSL_select_next_proto implements the standard protocol selection. It is
2626 * expected that this function is called from the callback set by
2627 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2628 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2629 * not included in the length. A byte string of length 0 is invalid. No byte
2630 * string may be truncated. The current, but experimental algorithm for
2631 * selecting the protocol is: 1) If the server doesn't support NPN then this
2632 * is indicated to the callback. In this case, the client application has to
2633 * abort the connection or have a default application level protocol. 2) If
2634 * the server supports NPN, but advertises an empty list then the client
2635 * selects the first protocol in its list, but indicates via the API that this
2636 * fallback case was enacted. 3) Otherwise, the client finds the first
2637 * protocol in the server's list that it supports and selects this protocol.
2638 * This is because it's assumed that the server has better information about
2639 * which protocol a client should use. 4) If the client doesn't support any
2640 * of the server's advertised protocols, then this is treated the same as
2641 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2642 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2644 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2645 const unsigned char *server
,
2646 unsigned int server_len
,
2647 const unsigned char *client
, unsigned int client_len
)
2650 const unsigned char *result
;
2651 int status
= OPENSSL_NPN_UNSUPPORTED
;
2654 * For each protocol in server preference order, see if we support it.
2656 for (i
= 0; i
< server_len
;) {
2657 for (j
= 0; j
< client_len
;) {
2658 if (server
[i
] == client
[j
] &&
2659 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2660 /* We found a match */
2661 result
= &server
[i
];
2662 status
= OPENSSL_NPN_NEGOTIATED
;
2672 /* There's no overlap between our protocols and the server's list. */
2674 status
= OPENSSL_NPN_NO_OVERLAP
;
2677 *out
= (unsigned char *)result
+ 1;
2678 *outlen
= result
[0];
2682 #ifndef OPENSSL_NO_NEXTPROTONEG
2684 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2685 * client's requested protocol for this connection and returns 0. If the
2686 * client didn't request any protocol, then *data is set to NULL. Note that
2687 * the client can request any protocol it chooses. The value returned from
2688 * this function need not be a member of the list of supported protocols
2689 * provided by the callback.
2691 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2698 *len
= (unsigned int)s
->ext
.npn_len
;
2703 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2704 * a TLS server needs a list of supported protocols for Next Protocol
2705 * Negotiation. The returned list must be in wire format. The list is
2706 * returned by setting |out| to point to it and |outlen| to its length. This
2707 * memory will not be modified, but one should assume that the SSL* keeps a
2708 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2709 * wishes to advertise. Otherwise, no such extension will be included in the
2712 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2713 SSL_CTX_npn_advertised_cb_func cb
,
2716 ctx
->ext
.npn_advertised_cb
= cb
;
2717 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2721 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2722 * client needs to select a protocol from the server's provided list. |out|
2723 * must be set to point to the selected protocol (which may be within |in|).
2724 * The length of the protocol name must be written into |outlen|. The
2725 * server's advertised protocols are provided in |in| and |inlen|. The
2726 * callback can assume that |in| is syntactically valid. The client must
2727 * select a protocol. It is fatal to the connection if this callback returns
2728 * a value other than SSL_TLSEXT_ERR_OK.
2730 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2731 SSL_CTX_npn_select_cb_func cb
,
2734 ctx
->ext
.npn_select_cb
= cb
;
2735 ctx
->ext
.npn_select_cb_arg
= arg
;
2740 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2741 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2742 * length-prefixed strings). Returns 0 on success.
2744 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2745 unsigned int protos_len
)
2747 OPENSSL_free(ctx
->ext
.alpn
);
2748 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2749 if (ctx
->ext
.alpn
== NULL
) {
2750 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2753 ctx
->ext
.alpn_len
= protos_len
;
2759 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2760 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2761 * length-prefixed strings). Returns 0 on success.
2763 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2764 unsigned int protos_len
)
2766 OPENSSL_free(ssl
->ext
.alpn
);
2767 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2768 if (ssl
->ext
.alpn
== NULL
) {
2769 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2772 ssl
->ext
.alpn_len
= protos_len
;
2778 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2779 * called during ClientHello processing in order to select an ALPN protocol
2780 * from the client's list of offered protocols.
2782 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2783 SSL_CTX_alpn_select_cb_func cb
,
2786 ctx
->ext
.alpn_select_cb
= cb
;
2787 ctx
->ext
.alpn_select_cb_arg
= arg
;
2791 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2792 * On return it sets |*data| to point to |*len| bytes of protocol name
2793 * (not including the leading length-prefix byte). If the server didn't
2794 * respond with a negotiated protocol then |*len| will be zero.
2796 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2801 *data
= ssl
->s3
->alpn_selected
;
2805 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2808 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2809 const char *label
, size_t llen
,
2810 const unsigned char *context
, size_t contextlen
,
2813 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2816 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2818 contextlen
, use_context
);
2821 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2822 const char *label
, size_t llen
,
2823 const unsigned char *context
,
2826 if (s
->version
!= TLS1_3_VERSION
)
2829 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2830 context
, contextlen
);
2833 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2835 const unsigned char *session_id
= a
->session_id
;
2837 unsigned char tmp_storage
[4];
2839 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2840 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2841 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2842 session_id
= tmp_storage
;
2846 ((unsigned long)session_id
[0]) |
2847 ((unsigned long)session_id
[1] << 8L) |
2848 ((unsigned long)session_id
[2] << 16L) |
2849 ((unsigned long)session_id
[3] << 24L);
2854 * NB: If this function (or indeed the hash function which uses a sort of
2855 * coarser function than this one) is changed, ensure
2856 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2857 * being able to construct an SSL_SESSION that will collide with any existing
2858 * session with a matching session ID.
2860 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2862 if (a
->ssl_version
!= b
->ssl_version
)
2864 if (a
->session_id_length
!= b
->session_id_length
)
2866 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2870 * These wrapper functions should remain rather than redeclaring
2871 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2872 * variable. The reason is that the functions aren't static, they're exposed
2876 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2878 SSL_CTX
*ret
= NULL
;
2881 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2885 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2888 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2889 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2892 ret
= OPENSSL_zalloc(sizeof(*ret
));
2897 ret
->min_proto_version
= 0;
2898 ret
->max_proto_version
= 0;
2899 ret
->mode
= SSL_MODE_AUTO_RETRY
;
2900 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2901 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2902 /* We take the system default. */
2903 ret
->session_timeout
= meth
->get_timeout();
2904 ret
->references
= 1;
2905 ret
->lock
= CRYPTO_THREAD_lock_new();
2906 if (ret
->lock
== NULL
) {
2907 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2911 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2912 ret
->verify_mode
= SSL_VERIFY_NONE
;
2913 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2916 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2917 if (ret
->sessions
== NULL
)
2919 ret
->cert_store
= X509_STORE_new();
2920 if (ret
->cert_store
== NULL
)
2922 #ifndef OPENSSL_NO_CT
2923 ret
->ctlog_store
= CTLOG_STORE_new();
2924 if (ret
->ctlog_store
== NULL
)
2928 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
2931 if (!ssl_create_cipher_list(ret
->method
,
2932 ret
->tls13_ciphersuites
,
2933 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2934 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2935 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2936 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2940 ret
->param
= X509_VERIFY_PARAM_new();
2941 if (ret
->param
== NULL
)
2944 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2945 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2948 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2949 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2953 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2956 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2959 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
2962 /* No compression for DTLS */
2963 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2964 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2966 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2967 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2969 /* Setup RFC5077 ticket keys */
2970 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2971 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2972 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
2973 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
2974 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
2975 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
2976 ret
->options
|= SSL_OP_NO_TICKET
;
2978 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
2979 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
2982 #ifndef OPENSSL_NO_SRP
2983 if (!SSL_CTX_SRP_CTX_init(ret
))
2986 #ifndef OPENSSL_NO_ENGINE
2987 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2988 # define eng_strx(x) #x
2989 # define eng_str(x) eng_strx(x)
2990 /* Use specific client engine automatically... ignore errors */
2993 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2996 ENGINE_load_builtin_engines();
2997 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2999 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3005 * Default is to connect to non-RI servers. When RI is more widely
3006 * deployed might change this.
3008 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3010 * Disable compression by default to prevent CRIME. Applications can
3011 * re-enable compression by configuring
3012 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3013 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3014 * middlebox compatibility by default. This may be disabled by default in
3015 * a later OpenSSL version.
3017 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3019 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3022 * We cannot usefully set a default max_early_data here (which gets
3023 * propagated in SSL_new(), for the following reason: setting the
3024 * SSL field causes tls_construct_stoc_early_data() to tell the
3025 * client that early data will be accepted when constructing a TLS 1.3
3026 * session ticket, and the client will accordingly send us early data
3027 * when using that ticket (if the client has early data to send).
3028 * However, in order for the early data to actually be consumed by
3029 * the application, the application must also have calls to
3030 * SSL_read_early_data(); otherwise we'll just skip past the early data
3031 * and ignore it. So, since the application must add calls to
3032 * SSL_read_early_data(), we also require them to add
3033 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3034 * eliminating the bandwidth-wasting early data in the case described
3037 ret
->max_early_data
= 0;
3039 /* By default we send two session tickets automatically in TLSv1.3 */
3040 ret
->num_tickets
= 2;
3042 ssl_ctx_system_config(ret
);
3046 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3052 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3056 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3059 REF_PRINT_COUNT("SSL_CTX", ctx
);
3060 REF_ASSERT_ISNT(i
< 2);
3061 return ((i
> 1) ? 1 : 0);
3064 void SSL_CTX_free(SSL_CTX
*a
)
3071 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3072 REF_PRINT_COUNT("SSL_CTX", a
);
3075 REF_ASSERT_ISNT(i
< 0);
3077 X509_VERIFY_PARAM_free(a
->param
);
3078 dane_ctx_final(&a
->dane
);
3081 * Free internal session cache. However: the remove_cb() may reference
3082 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3083 * after the sessions were flushed.
3084 * As the ex_data handling routines might also touch the session cache,
3085 * the most secure solution seems to be: empty (flush) the cache, then
3086 * free ex_data, then finally free the cache.
3087 * (See ticket [openssl.org #212].)
3089 if (a
->sessions
!= NULL
)
3090 SSL_CTX_flush_sessions(a
, 0);
3092 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3093 lh_SSL_SESSION_free(a
->sessions
);
3094 X509_STORE_free(a
->cert_store
);
3095 #ifndef OPENSSL_NO_CT
3096 CTLOG_STORE_free(a
->ctlog_store
);
3098 sk_SSL_CIPHER_free(a
->cipher_list
);
3099 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3100 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3101 ssl_cert_free(a
->cert
);
3102 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3103 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3104 a
->comp_methods
= NULL
;
3105 #ifndef OPENSSL_NO_SRTP
3106 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3108 #ifndef OPENSSL_NO_SRP
3109 SSL_CTX_SRP_CTX_free(a
);
3111 #ifndef OPENSSL_NO_ENGINE
3112 ENGINE_finish(a
->client_cert_engine
);
3115 #ifndef OPENSSL_NO_EC
3116 OPENSSL_free(a
->ext
.ecpointformats
);
3117 OPENSSL_free(a
->ext
.supportedgroups
);
3119 OPENSSL_free(a
->ext
.alpn
);
3120 OPENSSL_secure_free(a
->ext
.secure
);
3122 CRYPTO_THREAD_lock_free(a
->lock
);
3127 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3129 ctx
->default_passwd_callback
= cb
;
3132 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3134 ctx
->default_passwd_callback_userdata
= u
;
3137 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3139 return ctx
->default_passwd_callback
;
3142 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3144 return ctx
->default_passwd_callback_userdata
;
3147 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3149 s
->default_passwd_callback
= cb
;
3152 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3154 s
->default_passwd_callback_userdata
= u
;
3157 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3159 return s
->default_passwd_callback
;
3162 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3164 return s
->default_passwd_callback_userdata
;
3167 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3168 int (*cb
) (X509_STORE_CTX
*, void *),
3171 ctx
->app_verify_callback
= cb
;
3172 ctx
->app_verify_arg
= arg
;
3175 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3176 int (*cb
) (int, X509_STORE_CTX
*))
3178 ctx
->verify_mode
= mode
;
3179 ctx
->default_verify_callback
= cb
;
3182 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3184 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3187 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3189 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3192 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3194 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3197 void ssl_set_masks(SSL
*s
)
3200 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3201 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3202 unsigned long mask_k
, mask_a
;
3203 #ifndef OPENSSL_NO_EC
3204 int have_ecc_cert
, ecdsa_ok
;
3209 #ifndef OPENSSL_NO_DH
3210 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3215 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3216 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3217 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3218 #ifndef OPENSSL_NO_EC
3219 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3225 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3226 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3229 #ifndef OPENSSL_NO_GOST
3230 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3231 mask_k
|= SSL_kGOST
;
3232 mask_a
|= SSL_aGOST12
;
3234 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3235 mask_k
|= SSL_kGOST
;
3236 mask_a
|= SSL_aGOST12
;
3238 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3239 mask_k
|= SSL_kGOST
;
3240 mask_a
|= SSL_aGOST01
;
3251 * If we only have an RSA-PSS certificate allow RSA authentication
3252 * if TLS 1.2 and peer supports it.
3255 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3256 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3257 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3264 mask_a
|= SSL_aNULL
;
3267 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3268 * depending on the key usage extension.
3270 #ifndef OPENSSL_NO_EC
3271 if (have_ecc_cert
) {
3273 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3274 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3275 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3278 mask_a
|= SSL_aECDSA
;
3280 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3281 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3282 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3283 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3284 mask_a
|= SSL_aECDSA
;
3286 /* Allow Ed448 for TLS 1.2 if peer supports it */
3287 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3288 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3289 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3290 mask_a
|= SSL_aECDSA
;
3293 #ifndef OPENSSL_NO_EC
3294 mask_k
|= SSL_kECDHE
;
3297 #ifndef OPENSSL_NO_PSK
3300 if (mask_k
& SSL_kRSA
)
3301 mask_k
|= SSL_kRSAPSK
;
3302 if (mask_k
& SSL_kDHE
)
3303 mask_k
|= SSL_kDHEPSK
;
3304 if (mask_k
& SSL_kECDHE
)
3305 mask_k
|= SSL_kECDHEPSK
;
3308 s
->s3
->tmp
.mask_k
= mask_k
;
3309 s
->s3
->tmp
.mask_a
= mask_a
;
3312 #ifndef OPENSSL_NO_EC
3314 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3316 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3317 /* key usage, if present, must allow signing */
3318 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3319 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3320 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3324 return 1; /* all checks are ok */
3329 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3330 size_t *serverinfo_length
)
3332 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3333 *serverinfo_length
= 0;
3335 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3338 *serverinfo
= cpk
->serverinfo
;
3339 *serverinfo_length
= cpk
->serverinfo_length
;
3343 void ssl_update_cache(SSL
*s
, int mode
)
3348 * If the session_id_length is 0, we are not supposed to cache it, and it
3349 * would be rather hard to do anyway :-)
3351 if (s
->session
->session_id_length
== 0)
3355 * If sid_ctx_length is 0 there is no specific application context
3356 * associated with this session, so when we try to resume it and
3357 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3358 * indication that this is actually a session for the proper application
3359 * context, and the *handshake* will fail, not just the resumption attempt.
3360 * Do not cache (on the server) these sessions that are not resumable
3361 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3363 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3364 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3367 i
= s
->session_ctx
->session_cache_mode
;
3369 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3371 * Add the session to the internal cache. In server side TLSv1.3 we
3372 * normally don't do this because by default it's a full stateless ticket
3373 * with only a dummy session id so there is no reason to cache it,
3375 * - we are doing early_data, in which case we cache so that we can
3377 * - the application has set a remove_session_cb so needs to know about
3378 * session timeout events
3379 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3381 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3382 && (!SSL_IS_TLS13(s
)
3384 || (s
->max_early_data
> 0
3385 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3386 || s
->session_ctx
->remove_session_cb
!= NULL
3387 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3388 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3391 * Add the session to the external cache. We do this even in server side
3392 * TLSv1.3 without early data because some applications just want to
3393 * know about the creation of a session and aren't doing a full cache.
3395 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3396 SSL_SESSION_up_ref(s
->session
);
3397 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3398 SSL_SESSION_free(s
->session
);
3402 /* auto flush every 255 connections */
3403 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3405 if (mode
& SSL_SESS_CACHE_CLIENT
)
3406 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3408 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3409 if (CRYPTO_atomic_read(stat
, &val
, s
->session_ctx
->lock
)
3410 && (val
& 0xff) == 0xff)
3411 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3415 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3420 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3425 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3429 if (s
->method
!= meth
) {
3430 const SSL_METHOD
*sm
= s
->method
;
3431 int (*hf
) (SSL
*) = s
->handshake_func
;
3433 if (sm
->version
== meth
->version
)
3438 ret
= s
->method
->ssl_new(s
);
3441 if (hf
== sm
->ssl_connect
)
3442 s
->handshake_func
= meth
->ssl_connect
;
3443 else if (hf
== sm
->ssl_accept
)
3444 s
->handshake_func
= meth
->ssl_accept
;
3449 int SSL_get_error(const SSL
*s
, int i
)
3456 return SSL_ERROR_NONE
;
3459 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3460 * where we do encode the error
3462 if ((l
= ERR_peek_error()) != 0) {
3463 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3464 return SSL_ERROR_SYSCALL
;
3466 return SSL_ERROR_SSL
;
3469 if (SSL_want_read(s
)) {
3470 bio
= SSL_get_rbio(s
);
3471 if (BIO_should_read(bio
))
3472 return SSL_ERROR_WANT_READ
;
3473 else if (BIO_should_write(bio
))
3475 * This one doesn't make too much sense ... We never try to write
3476 * to the rbio, and an application program where rbio and wbio
3477 * are separate couldn't even know what it should wait for.
3478 * However if we ever set s->rwstate incorrectly (so that we have
3479 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3480 * wbio *are* the same, this test works around that bug; so it
3481 * might be safer to keep it.
3483 return SSL_ERROR_WANT_WRITE
;
3484 else if (BIO_should_io_special(bio
)) {
3485 reason
= BIO_get_retry_reason(bio
);
3486 if (reason
== BIO_RR_CONNECT
)
3487 return SSL_ERROR_WANT_CONNECT
;
3488 else if (reason
== BIO_RR_ACCEPT
)
3489 return SSL_ERROR_WANT_ACCEPT
;
3491 return SSL_ERROR_SYSCALL
; /* unknown */
3495 if (SSL_want_write(s
)) {
3496 /* Access wbio directly - in order to use the buffered bio if present */
3498 if (BIO_should_write(bio
))
3499 return SSL_ERROR_WANT_WRITE
;
3500 else if (BIO_should_read(bio
))
3502 * See above (SSL_want_read(s) with BIO_should_write(bio))
3504 return SSL_ERROR_WANT_READ
;
3505 else if (BIO_should_io_special(bio
)) {
3506 reason
= BIO_get_retry_reason(bio
);
3507 if (reason
== BIO_RR_CONNECT
)
3508 return SSL_ERROR_WANT_CONNECT
;
3509 else if (reason
== BIO_RR_ACCEPT
)
3510 return SSL_ERROR_WANT_ACCEPT
;
3512 return SSL_ERROR_SYSCALL
;
3515 if (SSL_want_x509_lookup(s
))
3516 return SSL_ERROR_WANT_X509_LOOKUP
;
3517 if (SSL_want_async(s
))
3518 return SSL_ERROR_WANT_ASYNC
;
3519 if (SSL_want_async_job(s
))
3520 return SSL_ERROR_WANT_ASYNC_JOB
;
3521 if (SSL_want_client_hello_cb(s
))
3522 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3524 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3525 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3526 return SSL_ERROR_ZERO_RETURN
;
3528 return SSL_ERROR_SYSCALL
;
3531 static int ssl_do_handshake_intern(void *vargs
)
3533 struct ssl_async_args
*args
;
3536 args
= (struct ssl_async_args
*)vargs
;
3539 return s
->handshake_func(s
);
3542 int SSL_do_handshake(SSL
*s
)
3546 if (s
->handshake_func
== NULL
) {
3547 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3551 ossl_statem_check_finish_init(s
, -1);
3553 s
->method
->ssl_renegotiate_check(s
, 0);
3555 if (SSL_is_server(s
)) {
3556 /* clear SNI settings at server-side */
3557 OPENSSL_free(s
->ext
.hostname
);
3558 s
->ext
.hostname
= NULL
;
3561 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3562 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3563 struct ssl_async_args args
;
3567 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3569 ret
= s
->handshake_func(s
);
3575 void SSL_set_accept_state(SSL
*s
)
3579 ossl_statem_clear(s
);
3580 s
->handshake_func
= s
->method
->ssl_accept
;
3584 void SSL_set_connect_state(SSL
*s
)
3588 ossl_statem_clear(s
);
3589 s
->handshake_func
= s
->method
->ssl_connect
;
3593 int ssl_undefined_function(SSL
*s
)
3595 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3599 int ssl_undefined_void_function(void)
3601 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3602 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3606 int ssl_undefined_const_function(const SSL
*s
)
3611 const SSL_METHOD
*ssl_bad_method(int ver
)
3613 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3617 const char *ssl_protocol_to_string(int version
)
3621 case TLS1_3_VERSION
:
3624 case TLS1_2_VERSION
:
3627 case TLS1_1_VERSION
:
3642 case DTLS1_2_VERSION
:
3650 const char *SSL_get_version(const SSL
*s
)
3652 return ssl_protocol_to_string(s
->version
);
3655 SSL
*SSL_dup(SSL
*s
)
3657 STACK_OF(X509_NAME
) *sk
;
3662 /* If we're not quiescent, just up_ref! */
3663 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3664 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3669 * Otherwise, copy configuration state, and session if set.
3671 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3674 if (s
->session
!= NULL
) {
3676 * Arranges to share the same session via up_ref. This "copies"
3677 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3679 if (!SSL_copy_session_id(ret
, s
))
3683 * No session has been established yet, so we have to expect that
3684 * s->cert or ret->cert will be changed later -- they should not both
3685 * point to the same object, and thus we can't use
3686 * SSL_copy_session_id.
3688 if (!SSL_set_ssl_method(ret
, s
->method
))
3691 if (s
->cert
!= NULL
) {
3692 ssl_cert_free(ret
->cert
);
3693 ret
->cert
= ssl_cert_dup(s
->cert
);
3694 if (ret
->cert
== NULL
)
3698 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3699 (int)s
->sid_ctx_length
))
3703 if (!ssl_dane_dup(ret
, s
))
3705 ret
->version
= s
->version
;
3706 ret
->options
= s
->options
;
3707 ret
->mode
= s
->mode
;
3708 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3709 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3710 ret
->msg_callback
= s
->msg_callback
;
3711 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3712 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3713 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3714 ret
->generate_session_id
= s
->generate_session_id
;
3716 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3718 /* copy app data, a little dangerous perhaps */
3719 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3722 /* setup rbio, and wbio */
3723 if (s
->rbio
!= NULL
) {
3724 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3727 if (s
->wbio
!= NULL
) {
3728 if (s
->wbio
!= s
->rbio
) {
3729 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3732 BIO_up_ref(ret
->rbio
);
3733 ret
->wbio
= ret
->rbio
;
3737 ret
->server
= s
->server
;
3738 if (s
->handshake_func
) {
3740 SSL_set_accept_state(ret
);
3742 SSL_set_connect_state(ret
);
3744 ret
->shutdown
= s
->shutdown
;
3747 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3748 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3750 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3752 /* dup the cipher_list and cipher_list_by_id stacks */
3753 if (s
->cipher_list
!= NULL
) {
3754 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3757 if (s
->cipher_list_by_id
!= NULL
)
3758 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3762 /* Dup the client_CA list */
3763 if (s
->ca_names
!= NULL
) {
3764 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3767 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3768 xn
= sk_X509_NAME_value(sk
, i
);
3769 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3782 void ssl_clear_cipher_ctx(SSL
*s
)
3784 if (s
->enc_read_ctx
!= NULL
) {
3785 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3786 s
->enc_read_ctx
= NULL
;
3788 if (s
->enc_write_ctx
!= NULL
) {
3789 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3790 s
->enc_write_ctx
= NULL
;
3792 #ifndef OPENSSL_NO_COMP
3793 COMP_CTX_free(s
->expand
);
3795 COMP_CTX_free(s
->compress
);
3800 X509
*SSL_get_certificate(const SSL
*s
)
3802 if (s
->cert
!= NULL
)
3803 return s
->cert
->key
->x509
;
3808 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3810 if (s
->cert
!= NULL
)
3811 return s
->cert
->key
->privatekey
;
3816 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3818 if (ctx
->cert
!= NULL
)
3819 return ctx
->cert
->key
->x509
;
3824 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3826 if (ctx
->cert
!= NULL
)
3827 return ctx
->cert
->key
->privatekey
;
3832 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3834 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3835 return s
->session
->cipher
;
3839 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3841 return s
->s3
->tmp
.new_cipher
;
3844 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3846 #ifndef OPENSSL_NO_COMP
3847 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3853 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3855 #ifndef OPENSSL_NO_COMP
3856 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3862 int ssl_init_wbio_buffer(SSL
*s
)
3866 if (s
->bbio
!= NULL
) {
3867 /* Already buffered. */
3871 bbio
= BIO_new(BIO_f_buffer());
3872 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3874 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3878 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3883 int ssl_free_wbio_buffer(SSL
*s
)
3885 /* callers ensure s is never null */
3886 if (s
->bbio
== NULL
)
3889 s
->wbio
= BIO_pop(s
->wbio
);
3896 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3898 ctx
->quiet_shutdown
= mode
;
3901 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3903 return ctx
->quiet_shutdown
;
3906 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3908 s
->quiet_shutdown
= mode
;
3911 int SSL_get_quiet_shutdown(const SSL
*s
)
3913 return s
->quiet_shutdown
;
3916 void SSL_set_shutdown(SSL
*s
, int mode
)
3921 int SSL_get_shutdown(const SSL
*s
)
3926 int SSL_version(const SSL
*s
)
3931 int SSL_client_version(const SSL
*s
)
3933 return s
->client_version
;
3936 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3941 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3944 if (ssl
->ctx
== ctx
)
3947 ctx
= ssl
->session_ctx
;
3948 new_cert
= ssl_cert_dup(ctx
->cert
);
3949 if (new_cert
== NULL
) {
3953 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3954 ssl_cert_free(new_cert
);
3958 ssl_cert_free(ssl
->cert
);
3959 ssl
->cert
= new_cert
;
3962 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3963 * so setter APIs must prevent invalid lengths from entering the system.
3965 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3969 * If the session ID context matches that of the parent SSL_CTX,
3970 * inherit it from the new SSL_CTX as well. If however the context does
3971 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3972 * leave it unchanged.
3974 if ((ssl
->ctx
!= NULL
) &&
3975 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3976 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3977 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3978 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3981 SSL_CTX_up_ref(ctx
);
3982 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3988 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3990 return X509_STORE_set_default_paths(ctx
->cert_store
);
3993 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3995 X509_LOOKUP
*lookup
;
3997 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4000 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4002 /* Clear any errors if the default directory does not exist */
4008 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4010 X509_LOOKUP
*lookup
;
4012 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4016 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4018 /* Clear any errors if the default file does not exist */
4024 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4027 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4030 void SSL_set_info_callback(SSL
*ssl
,
4031 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4033 ssl
->info_callback
= cb
;
4037 * One compiler (Diab DCC) doesn't like argument names in returned function
4040 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4043 return ssl
->info_callback
;
4046 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4048 ssl
->verify_result
= arg
;
4051 long SSL_get_verify_result(const SSL
*ssl
)
4053 return ssl
->verify_result
;
4056 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4059 return sizeof(ssl
->s3
->client_random
);
4060 if (outlen
> sizeof(ssl
->s3
->client_random
))
4061 outlen
= sizeof(ssl
->s3
->client_random
);
4062 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4066 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4069 return sizeof(ssl
->s3
->server_random
);
4070 if (outlen
> sizeof(ssl
->s3
->server_random
))
4071 outlen
= sizeof(ssl
->s3
->server_random
);
4072 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4076 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4077 unsigned char *out
, size_t outlen
)
4080 return session
->master_key_length
;
4081 if (outlen
> session
->master_key_length
)
4082 outlen
= session
->master_key_length
;
4083 memcpy(out
, session
->master_key
, outlen
);
4087 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4090 if (len
> sizeof(sess
->master_key
))
4093 memcpy(sess
->master_key
, in
, len
);
4094 sess
->master_key_length
= len
;
4099 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4101 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4104 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4106 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4109 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4111 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4114 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4116 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4119 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4121 return ctx
->cert_store
;
4124 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4126 X509_STORE_free(ctx
->cert_store
);
4127 ctx
->cert_store
= store
;
4130 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4133 X509_STORE_up_ref(store
);
4134 SSL_CTX_set_cert_store(ctx
, store
);
4137 int SSL_want(const SSL
*s
)
4143 * \brief Set the callback for generating temporary DH keys.
4144 * \param ctx the SSL context.
4145 * \param dh the callback
4148 #ifndef OPENSSL_NO_DH
4149 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4150 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4153 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4156 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4159 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4163 #ifndef OPENSSL_NO_PSK
4164 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4166 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4167 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4170 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4171 if (identity_hint
!= NULL
) {
4172 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4173 if (ctx
->cert
->psk_identity_hint
== NULL
)
4176 ctx
->cert
->psk_identity_hint
= NULL
;
4180 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4185 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4186 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4189 OPENSSL_free(s
->cert
->psk_identity_hint
);
4190 if (identity_hint
!= NULL
) {
4191 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4192 if (s
->cert
->psk_identity_hint
== NULL
)
4195 s
->cert
->psk_identity_hint
= NULL
;
4199 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4201 if (s
== NULL
|| s
->session
== NULL
)
4203 return s
->session
->psk_identity_hint
;
4206 const char *SSL_get_psk_identity(const SSL
*s
)
4208 if (s
== NULL
|| s
->session
== NULL
)
4210 return s
->session
->psk_identity
;
4213 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4215 s
->psk_client_callback
= cb
;
4218 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4220 ctx
->psk_client_callback
= cb
;
4223 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4225 s
->psk_server_callback
= cb
;
4228 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4230 ctx
->psk_server_callback
= cb
;
4234 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4236 s
->psk_find_session_cb
= cb
;
4239 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4240 SSL_psk_find_session_cb_func cb
)
4242 ctx
->psk_find_session_cb
= cb
;
4245 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4247 s
->psk_use_session_cb
= cb
;
4250 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4251 SSL_psk_use_session_cb_func cb
)
4253 ctx
->psk_use_session_cb
= cb
;
4256 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4257 void (*cb
) (int write_p
, int version
,
4258 int content_type
, const void *buf
,
4259 size_t len
, SSL
*ssl
, void *arg
))
4261 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4264 void SSL_set_msg_callback(SSL
*ssl
,
4265 void (*cb
) (int write_p
, int version
,
4266 int content_type
, const void *buf
,
4267 size_t len
, SSL
*ssl
, void *arg
))
4269 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4272 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4273 int (*cb
) (SSL
*ssl
,
4277 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4278 (void (*)(void))cb
);
4281 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4282 int (*cb
) (SSL
*ssl
,
4283 int is_forward_secure
))
4285 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4286 (void (*)(void))cb
);
4289 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4290 size_t (*cb
) (SSL
*ssl
, int type
,
4291 size_t len
, void *arg
))
4293 ctx
->record_padding_cb
= cb
;
4296 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4298 ctx
->record_padding_arg
= arg
;
4301 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4303 return ctx
->record_padding_arg
;
4306 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4308 /* block size of 0 or 1 is basically no padding */
4309 if (block_size
== 1)
4310 ctx
->block_padding
= 0;
4311 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4312 ctx
->block_padding
= block_size
;
4318 void SSL_set_record_padding_callback(SSL
*ssl
,
4319 size_t (*cb
) (SSL
*ssl
, int type
,
4320 size_t len
, void *arg
))
4322 ssl
->record_padding_cb
= cb
;
4325 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4327 ssl
->record_padding_arg
= arg
;
4330 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4332 return ssl
->record_padding_arg
;
4335 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4337 /* block size of 0 or 1 is basically no padding */
4338 if (block_size
== 1)
4339 ssl
->block_padding
= 0;
4340 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4341 ssl
->block_padding
= block_size
;
4347 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4349 s
->num_tickets
= num_tickets
;
4354 size_t SSL_get_num_tickets(SSL
*s
)
4356 return s
->num_tickets
;
4359 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4361 ctx
->num_tickets
= num_tickets
;
4366 size_t SSL_CTX_get_num_tickets(SSL_CTX
*ctx
)
4368 return ctx
->num_tickets
;
4372 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4373 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4374 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4375 * Returns the newly allocated ctx;
4378 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4380 ssl_clear_hash_ctx(hash
);
4381 *hash
= EVP_MD_CTX_new();
4382 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4383 EVP_MD_CTX_free(*hash
);
4390 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4393 EVP_MD_CTX_free(*hash
);
4397 /* Retrieve handshake hashes */
4398 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4401 EVP_MD_CTX
*ctx
= NULL
;
4402 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4403 int hashleni
= EVP_MD_CTX_size(hdgst
);
4406 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4407 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4408 ERR_R_INTERNAL_ERROR
);
4412 ctx
= EVP_MD_CTX_new();
4416 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4417 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4418 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4419 ERR_R_INTERNAL_ERROR
);
4423 *hashlen
= hashleni
;
4427 EVP_MD_CTX_free(ctx
);
4431 int SSL_session_reused(SSL
*s
)
4436 int SSL_is_server(const SSL
*s
)
4441 #if OPENSSL_API_COMPAT < 0x10100000L
4442 void SSL_set_debug(SSL
*s
, int debug
)
4444 /* Old function was do-nothing anyway... */
4450 void SSL_set_security_level(SSL
*s
, int level
)
4452 s
->cert
->sec_level
= level
;
4455 int SSL_get_security_level(const SSL
*s
)
4457 return s
->cert
->sec_level
;
4460 void SSL_set_security_callback(SSL
*s
,
4461 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4462 int op
, int bits
, int nid
,
4463 void *other
, void *ex
))
4465 s
->cert
->sec_cb
= cb
;
4468 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4469 const SSL_CTX
*ctx
, int op
,
4470 int bits
, int nid
, void *other
,
4472 return s
->cert
->sec_cb
;
4475 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4477 s
->cert
->sec_ex
= ex
;
4480 void *SSL_get0_security_ex_data(const SSL
*s
)
4482 return s
->cert
->sec_ex
;
4485 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4487 ctx
->cert
->sec_level
= level
;
4490 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4492 return ctx
->cert
->sec_level
;
4495 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4496 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4497 int op
, int bits
, int nid
,
4498 void *other
, void *ex
))
4500 ctx
->cert
->sec_cb
= cb
;
4503 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4509 return ctx
->cert
->sec_cb
;
4512 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4514 ctx
->cert
->sec_ex
= ex
;
4517 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4519 return ctx
->cert
->sec_ex
;
4523 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4524 * can return unsigned long, instead of the generic long return value from the
4525 * control interface.
4527 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4529 return ctx
->options
;
4532 unsigned long SSL_get_options(const SSL
*s
)
4537 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4539 return ctx
->options
|= op
;
4542 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4544 return s
->options
|= op
;
4547 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4549 return ctx
->options
&= ~op
;
4552 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4554 return s
->options
&= ~op
;
4557 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4559 return s
->verified_chain
;
4562 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4564 #ifndef OPENSSL_NO_CT
4567 * Moves SCTs from the |src| stack to the |dst| stack.
4568 * The source of each SCT will be set to |origin|.
4569 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4571 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4573 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4574 sct_source_t origin
)
4580 *dst
= sk_SCT_new_null();
4582 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4587 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4588 if (SCT_set_source(sct
, origin
) != 1)
4591 if (sk_SCT_push(*dst
, sct
) <= 0)
4599 sk_SCT_push(src
, sct
); /* Put the SCT back */
4604 * Look for data collected during ServerHello and parse if found.
4605 * Returns the number of SCTs extracted.
4607 static int ct_extract_tls_extension_scts(SSL
*s
)
4609 int scts_extracted
= 0;
4611 if (s
->ext
.scts
!= NULL
) {
4612 const unsigned char *p
= s
->ext
.scts
;
4613 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4615 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4617 SCT_LIST_free(scts
);
4620 return scts_extracted
;
4624 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4625 * contains an SCT X509 extension. They will be stored in |s->scts|.
4627 * - The number of SCTs extracted, assuming an OCSP response exists.
4628 * - 0 if no OCSP response exists or it contains no SCTs.
4629 * - A negative integer if an error occurs.
4631 static int ct_extract_ocsp_response_scts(SSL
*s
)
4633 # ifndef OPENSSL_NO_OCSP
4634 int scts_extracted
= 0;
4635 const unsigned char *p
;
4636 OCSP_BASICRESP
*br
= NULL
;
4637 OCSP_RESPONSE
*rsp
= NULL
;
4638 STACK_OF(SCT
) *scts
= NULL
;
4641 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4644 p
= s
->ext
.ocsp
.resp
;
4645 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4649 br
= OCSP_response_get1_basic(rsp
);
4653 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4654 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4660 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4662 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4663 if (scts_extracted
< 0)
4667 SCT_LIST_free(scts
);
4668 OCSP_BASICRESP_free(br
);
4669 OCSP_RESPONSE_free(rsp
);
4670 return scts_extracted
;
4672 /* Behave as if no OCSP response exists */
4678 * Attempts to extract SCTs from the peer certificate.
4679 * Return the number of SCTs extracted, or a negative integer if an error
4682 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4684 int scts_extracted
= 0;
4685 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4688 STACK_OF(SCT
) *scts
=
4689 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4692 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4694 SCT_LIST_free(scts
);
4697 return scts_extracted
;
4701 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4702 * response (if it exists) and X509v3 extensions in the certificate.
4703 * Returns NULL if an error occurs.
4705 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4707 if (!s
->scts_parsed
) {
4708 if (ct_extract_tls_extension_scts(s
) < 0 ||
4709 ct_extract_ocsp_response_scts(s
) < 0 ||
4710 ct_extract_x509v3_extension_scts(s
) < 0)
4720 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4721 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4726 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4727 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4729 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4732 for (i
= 0; i
< count
; ++i
) {
4733 SCT
*sct
= sk_SCT_value(scts
, i
);
4734 int status
= SCT_get_validation_status(sct
);
4736 if (status
== SCT_VALIDATION_STATUS_VALID
)
4739 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4743 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4747 * Since code exists that uses the custom extension handler for CT, look
4748 * for this and throw an error if they have already registered to use CT.
4750 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4751 TLSEXT_TYPE_signed_certificate_timestamp
))
4753 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4754 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4758 if (callback
!= NULL
) {
4760 * If we are validating CT, then we MUST accept SCTs served via OCSP
4762 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4766 s
->ct_validation_callback
= callback
;
4767 s
->ct_validation_callback_arg
= arg
;
4772 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4773 ssl_ct_validation_cb callback
, void *arg
)
4776 * Since code exists that uses the custom extension handler for CT, look for
4777 * this and throw an error if they have already registered to use CT.
4779 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4780 TLSEXT_TYPE_signed_certificate_timestamp
))
4782 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4783 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4787 ctx
->ct_validation_callback
= callback
;
4788 ctx
->ct_validation_callback_arg
= arg
;
4792 int SSL_ct_is_enabled(const SSL
*s
)
4794 return s
->ct_validation_callback
!= NULL
;
4797 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4799 return ctx
->ct_validation_callback
!= NULL
;
4802 int ssl_validate_ct(SSL
*s
)
4805 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4807 SSL_DANE
*dane
= &s
->dane
;
4808 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4809 const STACK_OF(SCT
) *scts
;
4812 * If no callback is set, the peer is anonymous, or its chain is invalid,
4813 * skip SCT validation - just return success. Applications that continue
4814 * handshakes without certificates, with unverified chains, or pinned leaf
4815 * certificates are outside the scope of the WebPKI and CT.
4817 * The above exclusions notwithstanding the vast majority of peers will
4818 * have rather ordinary certificate chains validated by typical
4819 * applications that perform certificate verification and therefore will
4820 * process SCTs when enabled.
4822 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4823 s
->verify_result
!= X509_V_OK
||
4824 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4828 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4829 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4831 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4832 switch (dane
->mtlsa
->usage
) {
4833 case DANETLS_USAGE_DANE_TA
:
4834 case DANETLS_USAGE_DANE_EE
:
4839 ctx
= CT_POLICY_EVAL_CTX_new();
4841 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4842 ERR_R_MALLOC_FAILURE
);
4846 issuer
= sk_X509_value(s
->verified_chain
, 1);
4847 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4848 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4849 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4850 CT_POLICY_EVAL_CTX_set_time(
4851 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4853 scts
= SSL_get0_peer_scts(s
);
4856 * This function returns success (> 0) only when all the SCTs are valid, 0
4857 * when some are invalid, and < 0 on various internal errors (out of
4858 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4859 * reason to abort the handshake, that decision is up to the callback.
4860 * Therefore, we error out only in the unexpected case that the return
4861 * value is negative.
4863 * XXX: One might well argue that the return value of this function is an
4864 * unfortunate design choice. Its job is only to determine the validation
4865 * status of each of the provided SCTs. So long as it correctly separates
4866 * the wheat from the chaff it should return success. Failure in this case
4867 * ought to correspond to an inability to carry out its duties.
4869 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4870 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4871 SSL_R_SCT_VERIFICATION_FAILED
);
4875 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4877 ret
= 0; /* This function returns 0 on failure */
4879 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4880 SSL_R_CALLBACK_FAILED
);
4883 CT_POLICY_EVAL_CTX_free(ctx
);
4885 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4886 * failure return code here. Also the application may wish the complete
4887 * the handshake, and then disconnect cleanly at a higher layer, after
4888 * checking the verification status of the completed connection.
4890 * We therefore force a certificate verification failure which will be
4891 * visible via SSL_get_verify_result() and cached as part of any resumed
4894 * Note: the permissive callback is for information gathering only, always
4895 * returns success, and does not affect verification status. Only the
4896 * strict callback or a custom application-specified callback can trigger
4897 * connection failure or record a verification error.
4900 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4904 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4906 switch (validation_mode
) {
4908 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4910 case SSL_CT_VALIDATION_PERMISSIVE
:
4911 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4912 case SSL_CT_VALIDATION_STRICT
:
4913 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4917 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4919 switch (validation_mode
) {
4921 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4923 case SSL_CT_VALIDATION_PERMISSIVE
:
4924 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4925 case SSL_CT_VALIDATION_STRICT
:
4926 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4930 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4932 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4935 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4937 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4940 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4942 CTLOG_STORE_free(ctx
->ctlog_store
);
4943 ctx
->ctlog_store
= logs
;
4946 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4948 return ctx
->ctlog_store
;
4951 #endif /* OPENSSL_NO_CT */
4953 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4956 c
->client_hello_cb
= cb
;
4957 c
->client_hello_cb_arg
= arg
;
4960 int SSL_client_hello_isv2(SSL
*s
)
4962 if (s
->clienthello
== NULL
)
4964 return s
->clienthello
->isv2
;
4967 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4969 if (s
->clienthello
== NULL
)
4971 return s
->clienthello
->legacy_version
;
4974 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
4976 if (s
->clienthello
== NULL
)
4979 *out
= s
->clienthello
->random
;
4980 return SSL3_RANDOM_SIZE
;
4983 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
4985 if (s
->clienthello
== NULL
)
4988 *out
= s
->clienthello
->session_id
;
4989 return s
->clienthello
->session_id_len
;
4992 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
4994 if (s
->clienthello
== NULL
)
4997 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4998 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5001 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5003 if (s
->clienthello
== NULL
)
5006 *out
= s
->clienthello
->compressions
;
5007 return s
->clienthello
->compressions_len
;
5010 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5016 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5018 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5019 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5023 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5024 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5025 ERR_R_MALLOC_FAILURE
);
5028 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5029 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5031 if (ext
->received_order
>= num
)
5033 present
[ext
->received_order
] = ext
->type
;
5040 OPENSSL_free(present
);
5044 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5050 if (s
->clienthello
== NULL
)
5052 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5053 r
= s
->clienthello
->pre_proc_exts
+ i
;
5054 if (r
->present
&& r
->type
== type
) {
5056 *out
= PACKET_data(&r
->data
);
5058 *outlen
= PACKET_remaining(&r
->data
);
5065 int SSL_free_buffers(SSL
*ssl
)
5067 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5069 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5072 RECORD_LAYER_release(rl
);
5076 int SSL_alloc_buffers(SSL
*ssl
)
5078 return ssl3_setup_buffers(ssl
);
5081 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5083 ctx
->keylog_callback
= cb
;
5086 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5088 return ctx
->keylog_callback
;
5091 static int nss_keylog_int(const char *prefix
,
5093 const uint8_t *parameter_1
,
5094 size_t parameter_1_len
,
5095 const uint8_t *parameter_2
,
5096 size_t parameter_2_len
)
5099 char *cursor
= NULL
;
5104 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
5107 * Our output buffer will contain the following strings, rendered with
5108 * space characters in between, terminated by a NULL character: first the
5109 * prefix, then the first parameter, then the second parameter. The
5110 * meaning of each parameter depends on the specific key material being
5111 * logged. Note that the first and second parameters are encoded in
5112 * hexadecimal, so we need a buffer that is twice their lengths.
5114 prefix_len
= strlen(prefix
);
5115 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
5116 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5117 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5118 ERR_R_MALLOC_FAILURE
);
5122 strcpy(cursor
, prefix
);
5123 cursor
+= prefix_len
;
5126 for (i
= 0; i
< parameter_1_len
; i
++) {
5127 sprintf(cursor
, "%02x", parameter_1
[i
]);
5132 for (i
= 0; i
< parameter_2_len
; i
++) {
5133 sprintf(cursor
, "%02x", parameter_2
[i
]);
5138 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5144 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5145 const uint8_t *encrypted_premaster
,
5146 size_t encrypted_premaster_len
,
5147 const uint8_t *premaster
,
5148 size_t premaster_len
)
5150 if (encrypted_premaster_len
< 8) {
5151 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5152 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5156 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5157 return nss_keylog_int("RSA",
5159 encrypted_premaster
,
5165 int ssl_log_secret(SSL
*ssl
,
5167 const uint8_t *secret
,
5170 return nss_keylog_int(label
,
5172 ssl
->s3
->client_random
,
5178 #define SSLV2_CIPHER_LEN 3
5180 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5184 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5186 if (PACKET_remaining(cipher_suites
) == 0) {
5187 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5188 SSL_R_NO_CIPHERS_SPECIFIED
);
5192 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5193 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5194 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5198 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5199 s
->s3
->tmp
.ciphers_raw
= NULL
;
5200 s
->s3
->tmp
.ciphers_rawlen
= 0;
5203 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5204 PACKET sslv2ciphers
= *cipher_suites
;
5205 unsigned int leadbyte
;
5209 * We store the raw ciphers list in SSLv3+ format so we need to do some
5210 * preprocessing to convert the list first. If there are any SSLv2 only
5211 * ciphersuites with a non-zero leading byte then we are going to
5212 * slightly over allocate because we won't store those. But that isn't a
5215 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5216 s
->s3
->tmp
.ciphers_raw
= raw
;
5218 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5219 ERR_R_MALLOC_FAILURE
);
5222 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5223 PACKET_remaining(&sslv2ciphers
) > 0;
5224 raw
+= TLS_CIPHER_LEN
) {
5225 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5227 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5230 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5231 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5233 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5234 s
->s3
->tmp
.ciphers_raw
= NULL
;
5235 s
->s3
->tmp
.ciphers_rawlen
= 0;
5239 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5241 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5242 &s
->s3
->tmp
.ciphers_rawlen
)) {
5243 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5244 ERR_R_INTERNAL_ERROR
);
5250 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5251 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5252 STACK_OF(SSL_CIPHER
) **scsvs
)
5256 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5258 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5261 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5262 STACK_OF(SSL_CIPHER
) **skp
,
5263 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5264 int sslv2format
, int fatal
)
5266 const SSL_CIPHER
*c
;
5267 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5268 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5270 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5271 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5273 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5275 if (PACKET_remaining(cipher_suites
) == 0) {
5277 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5278 SSL_R_NO_CIPHERS_SPECIFIED
);
5280 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5284 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5286 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5287 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5289 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5290 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5294 sk
= sk_SSL_CIPHER_new_null();
5295 scsvs
= sk_SSL_CIPHER_new_null();
5296 if (sk
== NULL
|| scsvs
== NULL
) {
5298 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5299 ERR_R_MALLOC_FAILURE
);
5301 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5305 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5307 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5308 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5309 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5311 if (sslv2format
&& cipher
[0] != '\0')
5314 /* For SSLv2-compat, ignore leading 0-byte. */
5315 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5317 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5318 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5320 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5321 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5323 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5328 if (PACKET_remaining(cipher_suites
) > 0) {
5330 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5333 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5340 sk_SSL_CIPHER_free(sk
);
5341 if (scsvs_out
!= NULL
)
5344 sk_SSL_CIPHER_free(scsvs
);
5347 sk_SSL_CIPHER_free(sk
);
5348 sk_SSL_CIPHER_free(scsvs
);
5352 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5354 ctx
->max_early_data
= max_early_data
;
5359 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5361 return ctx
->max_early_data
;
5364 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5366 s
->max_early_data
= max_early_data
;
5371 uint32_t SSL_get_max_early_data(const SSL
*s
)
5373 return s
->max_early_data
;
5376 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5378 /* Return any active Max Fragment Len extension */
5379 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5380 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5382 /* return current SSL connection setting */
5383 return ssl
->max_send_fragment
;
5386 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5388 /* Return a value regarding an active Max Fragment Len extension */
5389 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5390 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5391 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5393 /* else limit |split_send_fragment| to current |max_send_fragment| */
5394 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5395 return ssl
->max_send_fragment
;
5397 /* return current SSL connection setting */
5398 return ssl
->split_send_fragment
;
5401 int SSL_stateless(SSL
*s
)
5405 /* Ensure there is no state left over from a previous invocation */
5411 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5412 ret
= SSL_accept(s
);
5413 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5415 if (ret
> 0 && s
->ext
.cookieok
)
5418 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5424 void SSL_force_post_handshake_auth(SSL
*ssl
)
5426 ssl
->pha_forced
= 1;
5429 int SSL_verify_client_post_handshake(SSL
*ssl
)
5431 if (!SSL_IS_TLS13(ssl
)) {
5432 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5436 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5440 if (!SSL_is_init_finished(ssl
)) {
5441 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5445 switch (ssl
->post_handshake_auth
) {
5447 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5450 case SSL_PHA_EXT_SENT
:
5451 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5453 case SSL_PHA_EXT_RECEIVED
:
5455 case SSL_PHA_REQUEST_PENDING
:
5456 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5458 case SSL_PHA_REQUESTED
:
5459 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5463 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5465 /* checks verify_mode and algorithm_auth */
5466 if (!send_certificate_request(ssl
)) {
5467 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5468 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5472 ossl_statem_set_in_init(ssl
, 1);
5476 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5477 SSL_CTX_generate_session_ticket_fn gen_cb
,
5478 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5481 ctx
->generate_ticket_cb
= gen_cb
;
5482 ctx
->decrypt_ticket_cb
= dec_cb
;
5483 ctx
->ticket_cb_data
= arg
;