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 Apache License 2.0 (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 <openssl/trace.h>
24 #include "internal/cryptlib.h"
25 #include "internal/refcount.h"
26 #include "internal/ktls.h"
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 if (!SSL_CTX_set_ciphersuites(ctx
, TLS_DEFAULT_CIPHERSUITES
)) {
658 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
661 sk
= ssl_create_cipher_list(ctx
->method
,
662 ctx
->tls13_ciphersuites
,
664 &(ctx
->cipher_list_by_id
),
665 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
666 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
667 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
673 SSL
*SSL_new(SSL_CTX
*ctx
)
678 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
681 if (ctx
->method
== NULL
) {
682 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
686 s
= OPENSSL_zalloc(sizeof(*s
));
691 s
->lock
= CRYPTO_THREAD_lock_new();
692 if (s
->lock
== NULL
) {
698 RECORD_LAYER_init(&s
->rlayer
, s
);
700 s
->options
= ctx
->options
;
701 s
->dane
.flags
= ctx
->dane
.flags
;
702 s
->min_proto_version
= ctx
->min_proto_version
;
703 s
->max_proto_version
= ctx
->max_proto_version
;
705 s
->max_cert_list
= ctx
->max_cert_list
;
706 s
->max_early_data
= ctx
->max_early_data
;
707 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
708 s
->num_tickets
= ctx
->num_tickets
;
709 s
->pha_enabled
= ctx
->pha_enabled
;
711 /* Shallow copy of the ciphersuites stack */
712 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
713 if (s
->tls13_ciphersuites
== NULL
)
717 * Earlier library versions used to copy the pointer to the CERT, not
718 * its contents; only when setting new parameters for the per-SSL
719 * copy, ssl_cert_new would be called (and the direct reference to
720 * the per-SSL_CTX settings would be lost, but those still were
721 * indirectly accessed for various purposes, and for that reason they
722 * used to be known as s->ctx->default_cert). Now we don't look at the
723 * SSL_CTX's CERT after having duplicated it once.
725 s
->cert
= ssl_cert_dup(ctx
->cert
);
729 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
730 s
->msg_callback
= ctx
->msg_callback
;
731 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
732 s
->verify_mode
= ctx
->verify_mode
;
733 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
734 s
->record_padding_cb
= ctx
->record_padding_cb
;
735 s
->record_padding_arg
= ctx
->record_padding_arg
;
736 s
->block_padding
= ctx
->block_padding
;
737 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
738 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
740 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
741 s
->verify_callback
= ctx
->default_verify_callback
;
742 s
->generate_session_id
= ctx
->generate_session_id
;
744 s
->param
= X509_VERIFY_PARAM_new();
745 if (s
->param
== NULL
)
747 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
748 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
750 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
751 s
->max_send_fragment
= ctx
->max_send_fragment
;
752 s
->split_send_fragment
= ctx
->split_send_fragment
;
753 s
->max_pipelines
= ctx
->max_pipelines
;
754 if (s
->max_pipelines
> 1)
755 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
756 if (ctx
->default_read_buf_len
> 0)
757 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
762 s
->ext
.debug_arg
= NULL
;
763 s
->ext
.ticket_expected
= 0;
764 s
->ext
.status_type
= ctx
->ext
.status_type
;
765 s
->ext
.status_expected
= 0;
766 s
->ext
.ocsp
.ids
= NULL
;
767 s
->ext
.ocsp
.exts
= NULL
;
768 s
->ext
.ocsp
.resp
= NULL
;
769 s
->ext
.ocsp
.resp_len
= 0;
771 s
->session_ctx
= ctx
;
772 #ifndef OPENSSL_NO_EC
773 if (ctx
->ext
.ecpointformats
) {
774 s
->ext
.ecpointformats
=
775 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
776 ctx
->ext
.ecpointformats_len
);
777 if (!s
->ext
.ecpointformats
)
779 s
->ext
.ecpointformats_len
=
780 ctx
->ext
.ecpointformats_len
;
782 if (ctx
->ext
.supportedgroups
) {
783 s
->ext
.supportedgroups
=
784 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
785 ctx
->ext
.supportedgroups_len
786 * sizeof(*ctx
->ext
.supportedgroups
));
787 if (!s
->ext
.supportedgroups
)
789 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
792 #ifndef OPENSSL_NO_NEXTPROTONEG
796 if (s
->ctx
->ext
.alpn
) {
797 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
798 if (s
->ext
.alpn
== NULL
)
800 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
801 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
804 s
->verified_chain
= NULL
;
805 s
->verify_result
= X509_V_OK
;
807 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
808 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
810 s
->method
= ctx
->method
;
812 s
->key_update
= SSL_KEY_UPDATE_NONE
;
814 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
815 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
817 if (!s
->method
->ssl_new(s
))
820 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
825 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
828 #ifndef OPENSSL_NO_PSK
829 s
->psk_client_callback
= ctx
->psk_client_callback
;
830 s
->psk_server_callback
= ctx
->psk_server_callback
;
832 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
833 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
835 s
->async_cb
= ctx
->async_cb
;
836 s
->async_cb_arg
= ctx
->async_cb_arg
;
840 #ifndef OPENSSL_NO_CT
841 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
842 ctx
->ct_validation_callback_arg
))
849 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
853 int SSL_is_dtls(const SSL
*s
)
855 return SSL_IS_DTLS(s
) ? 1 : 0;
858 int SSL_up_ref(SSL
*s
)
862 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
865 REF_PRINT_COUNT("SSL", s
);
866 REF_ASSERT_ISNT(i
< 2);
867 return ((i
> 1) ? 1 : 0);
870 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
871 unsigned int sid_ctx_len
)
873 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
874 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
875 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
878 ctx
->sid_ctx_length
= sid_ctx_len
;
879 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
884 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
885 unsigned int sid_ctx_len
)
887 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
888 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
889 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
892 ssl
->sid_ctx_length
= sid_ctx_len
;
893 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
898 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
900 CRYPTO_THREAD_write_lock(ctx
->lock
);
901 ctx
->generate_session_id
= cb
;
902 CRYPTO_THREAD_unlock(ctx
->lock
);
906 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
908 CRYPTO_THREAD_write_lock(ssl
->lock
);
909 ssl
->generate_session_id
= cb
;
910 CRYPTO_THREAD_unlock(ssl
->lock
);
914 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
918 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
919 * we can "construct" a session to give us the desired check - i.e. to
920 * find if there's a session in the hash table that would conflict with
921 * any new session built out of this id/id_len and the ssl_version in use
926 if (id_len
> sizeof(r
.session_id
))
929 r
.ssl_version
= ssl
->version
;
930 r
.session_id_length
= id_len
;
931 memcpy(r
.session_id
, id
, id_len
);
933 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
934 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
935 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
939 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
941 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
944 int SSL_set_purpose(SSL
*s
, int purpose
)
946 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
949 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
951 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
954 int SSL_set_trust(SSL
*s
, int trust
)
956 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
959 int SSL_set1_host(SSL
*s
, const char *hostname
)
961 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
964 int SSL_add1_host(SSL
*s
, const char *hostname
)
966 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
969 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
971 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
974 const char *SSL_get0_peername(SSL
*s
)
976 return X509_VERIFY_PARAM_get0_peername(s
->param
);
979 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
981 return dane_ctx_enable(&ctx
->dane
);
984 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
986 unsigned long orig
= ctx
->dane
.flags
;
988 ctx
->dane
.flags
|= flags
;
992 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
994 unsigned long orig
= ctx
->dane
.flags
;
996 ctx
->dane
.flags
&= ~flags
;
1000 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1002 SSL_DANE
*dane
= &s
->dane
;
1004 if (s
->ctx
->dane
.mdmax
== 0) {
1005 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1008 if (dane
->trecs
!= NULL
) {
1009 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1014 * Default SNI name. This rejects empty names, while set1_host below
1015 * accepts them and disables host name checks. To avoid side-effects with
1016 * invalid input, set the SNI name first.
1018 if (s
->ext
.hostname
== NULL
) {
1019 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1020 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1025 /* Primary RFC6125 reference identifier */
1026 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1027 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1033 dane
->dctx
= &s
->ctx
->dane
;
1034 dane
->trecs
= sk_danetls_record_new_null();
1036 if (dane
->trecs
== NULL
) {
1037 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1043 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1045 unsigned long orig
= ssl
->dane
.flags
;
1047 ssl
->dane
.flags
|= flags
;
1051 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1053 unsigned long orig
= ssl
->dane
.flags
;
1055 ssl
->dane
.flags
&= ~flags
;
1059 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1061 SSL_DANE
*dane
= &s
->dane
;
1063 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1067 *mcert
= dane
->mcert
;
1069 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1074 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1075 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1077 SSL_DANE
*dane
= &s
->dane
;
1079 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1083 *usage
= dane
->mtlsa
->usage
;
1085 *selector
= dane
->mtlsa
->selector
;
1087 *mtype
= dane
->mtlsa
->mtype
;
1089 *data
= dane
->mtlsa
->data
;
1091 *dlen
= dane
->mtlsa
->dlen
;
1096 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1101 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1102 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1104 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1107 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1110 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1113 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1115 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1118 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1120 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1123 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1128 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1133 void SSL_certs_clear(SSL
*s
)
1135 ssl_cert_clear_certs(s
->cert
);
1138 void SSL_free(SSL
*s
)
1144 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1145 REF_PRINT_COUNT("SSL", s
);
1148 REF_ASSERT_ISNT(i
< 0);
1150 X509_VERIFY_PARAM_free(s
->param
);
1151 dane_final(&s
->dane
);
1152 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1154 RECORD_LAYER_release(&s
->rlayer
);
1156 /* Ignore return value */
1157 ssl_free_wbio_buffer(s
);
1159 BIO_free_all(s
->wbio
);
1161 BIO_free_all(s
->rbio
);
1164 BUF_MEM_free(s
->init_buf
);
1166 /* add extra stuff */
1167 sk_SSL_CIPHER_free(s
->cipher_list
);
1168 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1169 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1171 /* Make the next call work :-) */
1172 if (s
->session
!= NULL
) {
1173 ssl_clear_bad_session(s
);
1174 SSL_SESSION_free(s
->session
);
1176 SSL_SESSION_free(s
->psksession
);
1177 OPENSSL_free(s
->psksession_id
);
1181 ssl_cert_free(s
->cert
);
1182 /* Free up if allocated */
1184 OPENSSL_free(s
->ext
.hostname
);
1185 SSL_CTX_free(s
->session_ctx
);
1186 #ifndef OPENSSL_NO_EC
1187 OPENSSL_free(s
->ext
.ecpointformats
);
1188 OPENSSL_free(s
->ext
.supportedgroups
);
1189 #endif /* OPENSSL_NO_EC */
1190 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1191 #ifndef OPENSSL_NO_OCSP
1192 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1194 #ifndef OPENSSL_NO_CT
1195 SCT_LIST_free(s
->scts
);
1196 OPENSSL_free(s
->ext
.scts
);
1198 OPENSSL_free(s
->ext
.ocsp
.resp
);
1199 OPENSSL_free(s
->ext
.alpn
);
1200 OPENSSL_free(s
->ext
.tls13_cookie
);
1201 OPENSSL_free(s
->clienthello
);
1202 OPENSSL_free(s
->pha_context
);
1203 EVP_MD_CTX_free(s
->pha_dgst
);
1205 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1206 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1208 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1210 if (s
->method
!= NULL
)
1211 s
->method
->ssl_free(s
);
1213 SSL_CTX_free(s
->ctx
);
1215 ASYNC_WAIT_CTX_free(s
->waitctx
);
1217 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1218 OPENSSL_free(s
->ext
.npn
);
1221 #ifndef OPENSSL_NO_SRTP
1222 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1225 CRYPTO_THREAD_lock_free(s
->lock
);
1230 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1232 BIO_free_all(s
->rbio
);
1236 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1239 * If the output buffering BIO is still in place, remove it
1241 if (s
->bbio
!= NULL
)
1242 s
->wbio
= BIO_pop(s
->wbio
);
1244 BIO_free_all(s
->wbio
);
1247 /* Re-attach |bbio| to the new |wbio|. */
1248 if (s
->bbio
!= NULL
)
1249 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1252 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1255 * For historical reasons, this function has many different cases in
1256 * ownership handling.
1259 /* If nothing has changed, do nothing */
1260 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1264 * If the two arguments are equal then one fewer reference is granted by the
1265 * caller than we want to take
1267 if (rbio
!= NULL
&& rbio
== wbio
)
1271 * If only the wbio is changed only adopt one reference.
1273 if (rbio
== SSL_get_rbio(s
)) {
1274 SSL_set0_wbio(s
, wbio
);
1278 * There is an asymmetry here for historical reasons. If only the rbio is
1279 * changed AND the rbio and wbio were originally different, then we only
1280 * adopt one reference.
1282 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1283 SSL_set0_rbio(s
, rbio
);
1287 /* Otherwise, adopt both references. */
1288 SSL_set0_rbio(s
, rbio
);
1289 SSL_set0_wbio(s
, wbio
);
1292 BIO
*SSL_get_rbio(const SSL
*s
)
1297 BIO
*SSL_get_wbio(const SSL
*s
)
1299 if (s
->bbio
!= NULL
) {
1301 * If |bbio| is active, the true caller-configured BIO is its
1304 return BIO_next(s
->bbio
);
1309 int SSL_get_fd(const SSL
*s
)
1311 return SSL_get_rfd(s
);
1314 int SSL_get_rfd(const SSL
*s
)
1319 b
= SSL_get_rbio(s
);
1320 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1322 BIO_get_fd(r
, &ret
);
1326 int SSL_get_wfd(const SSL
*s
)
1331 b
= SSL_get_wbio(s
);
1332 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1334 BIO_get_fd(r
, &ret
);
1338 #ifndef OPENSSL_NO_SOCK
1339 int SSL_set_fd(SSL
*s
, int fd
)
1344 bio
= BIO_new(BIO_s_socket());
1347 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1350 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1351 SSL_set_bio(s
, bio
, bio
);
1352 #ifndef OPENSSL_NO_KTLS
1354 * The new socket is created successfully regardless of ktls_enable.
1355 * ktls_enable doesn't change any functionality of the socket, except
1356 * changing the setsockopt to enable the processing of ktls_start.
1357 * Thus, it is not a problem to call it for non-TLS sockets.
1360 #endif /* OPENSSL_NO_KTLS */
1366 int SSL_set_wfd(SSL
*s
, int fd
)
1368 BIO
*rbio
= SSL_get_rbio(s
);
1370 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1371 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1372 BIO
*bio
= BIO_new(BIO_s_socket());
1375 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1378 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1379 SSL_set0_wbio(s
, bio
);
1380 #ifndef OPENSSL_NO_KTLS
1382 * The new socket is created successfully regardless of ktls_enable.
1383 * ktls_enable doesn't change any functionality of the socket, except
1384 * changing the setsockopt to enable the processing of ktls_start.
1385 * Thus, it is not a problem to call it for non-TLS sockets.
1388 #endif /* OPENSSL_NO_KTLS */
1391 SSL_set0_wbio(s
, rbio
);
1396 int SSL_set_rfd(SSL
*s
, int fd
)
1398 BIO
*wbio
= SSL_get_wbio(s
);
1400 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1401 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1402 BIO
*bio
= BIO_new(BIO_s_socket());
1405 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1408 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1409 SSL_set0_rbio(s
, bio
);
1412 SSL_set0_rbio(s
, wbio
);
1419 /* return length of latest Finished message we sent, copy to 'buf' */
1420 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1424 if (s
->s3
!= NULL
) {
1425 ret
= s
->s3
->tmp
.finish_md_len
;
1428 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1433 /* return length of latest Finished message we expected, copy to 'buf' */
1434 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1438 if (s
->s3
!= NULL
) {
1439 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1442 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1447 int SSL_get_verify_mode(const SSL
*s
)
1449 return s
->verify_mode
;
1452 int SSL_get_verify_depth(const SSL
*s
)
1454 return X509_VERIFY_PARAM_get_depth(s
->param
);
1457 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1458 return s
->verify_callback
;
1461 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1463 return ctx
->verify_mode
;
1466 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1468 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1471 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1472 return ctx
->default_verify_callback
;
1475 void SSL_set_verify(SSL
*s
, int mode
,
1476 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1478 s
->verify_mode
= mode
;
1479 if (callback
!= NULL
)
1480 s
->verify_callback
= callback
;
1483 void SSL_set_verify_depth(SSL
*s
, int depth
)
1485 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1488 void SSL_set_read_ahead(SSL
*s
, int yes
)
1490 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1493 int SSL_get_read_ahead(const SSL
*s
)
1495 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1498 int SSL_pending(const SSL
*s
)
1500 size_t pending
= s
->method
->ssl_pending(s
);
1503 * SSL_pending cannot work properly if read-ahead is enabled
1504 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1505 * impossible to fix since SSL_pending cannot report errors that may be
1506 * observed while scanning the new data. (Note that SSL_pending() is
1507 * often used as a boolean value, so we'd better not return -1.)
1509 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1510 * we just return INT_MAX.
1512 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1515 int SSL_has_pending(const SSL
*s
)
1518 * Similar to SSL_pending() but returns a 1 to indicate that we have
1519 * unprocessed data available or 0 otherwise (as opposed to the number of
1520 * bytes available). Unlike SSL_pending() this will take into account
1521 * read_ahead data. A 1 return simply indicates that we have unprocessed
1522 * data. That data may not result in any application data, or we may fail
1523 * to parse the records for some reason.
1525 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1528 return RECORD_LAYER_read_pending(&s
->rlayer
);
1531 X509
*SSL_get_peer_certificate(const SSL
*s
)
1535 if ((s
== NULL
) || (s
->session
== NULL
))
1538 r
= s
->session
->peer
;
1548 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1552 if ((s
== NULL
) || (s
->session
== NULL
))
1555 r
= s
->session
->peer_chain
;
1558 * If we are a client, cert_chain includes the peer's own certificate; if
1559 * we are a server, it does not.
1566 * Now in theory, since the calling process own 't' it should be safe to
1567 * modify. We need to be able to read f without being hassled
1569 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1572 /* Do we need to to SSL locking? */
1573 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1578 * what if we are setup for one protocol version but want to talk another
1580 if (t
->method
!= f
->method
) {
1581 t
->method
->ssl_free(t
);
1582 t
->method
= f
->method
;
1583 if (t
->method
->ssl_new(t
) == 0)
1587 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1588 ssl_cert_free(t
->cert
);
1590 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1597 /* Fix this so it checks all the valid key/cert options */
1598 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1600 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1601 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1604 if (ctx
->cert
->key
->privatekey
== NULL
) {
1605 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1608 return X509_check_private_key
1609 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1612 /* Fix this function so that it takes an optional type parameter */
1613 int SSL_check_private_key(const SSL
*ssl
)
1616 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1619 if (ssl
->cert
->key
->x509
== NULL
) {
1620 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1623 if (ssl
->cert
->key
->privatekey
== NULL
) {
1624 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1627 return X509_check_private_key(ssl
->cert
->key
->x509
,
1628 ssl
->cert
->key
->privatekey
);
1631 int SSL_waiting_for_async(SSL
*s
)
1639 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1641 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1645 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1648 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1649 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1651 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1655 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1659 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1661 ctx
->async_cb
= callback
;
1665 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1667 ctx
->async_cb_arg
= arg
;
1671 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1673 s
->async_cb
= callback
;
1677 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1679 s
->async_cb_arg
= arg
;
1683 int SSL_get_async_status(SSL
*s
, int *status
)
1685 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1689 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
1693 int SSL_accept(SSL
*s
)
1695 if (s
->handshake_func
== NULL
) {
1696 /* Not properly initialized yet */
1697 SSL_set_accept_state(s
);
1700 return SSL_do_handshake(s
);
1703 int SSL_connect(SSL
*s
)
1705 if (s
->handshake_func
== NULL
) {
1706 /* Not properly initialized yet */
1707 SSL_set_connect_state(s
);
1710 return SSL_do_handshake(s
);
1713 long SSL_get_default_timeout(const SSL
*s
)
1715 return s
->method
->get_timeout();
1718 static int ssl_async_wait_ctx_cb(void *arg
)
1720 SSL
*s
= (SSL
*)arg
;
1722 return s
->async_cb(s
, s
->async_cb_arg
);
1725 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1726 int (*func
) (void *))
1729 if (s
->waitctx
== NULL
) {
1730 s
->waitctx
= ASYNC_WAIT_CTX_new();
1731 if (s
->waitctx
== NULL
)
1733 if (s
->async_cb
!= NULL
1734 && !ASYNC_WAIT_CTX_set_callback
1735 (s
->waitctx
, ssl_async_wait_ctx_cb
, s
))
1738 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1739 sizeof(struct ssl_async_args
))) {
1741 s
->rwstate
= SSL_NOTHING
;
1742 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1745 s
->rwstate
= SSL_ASYNC_PAUSED
;
1748 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1754 s
->rwstate
= SSL_NOTHING
;
1755 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1756 /* Shouldn't happen */
1761 static int ssl_io_intern(void *vargs
)
1763 struct ssl_async_args
*args
;
1768 args
= (struct ssl_async_args
*)vargs
;
1772 switch (args
->type
) {
1774 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1776 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1778 return args
->f
.func_other(s
);
1783 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1785 if (s
->handshake_func
== NULL
) {
1786 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1790 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1791 s
->rwstate
= SSL_NOTHING
;
1795 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1796 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1797 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1801 * If we are a client and haven't received the ServerHello etc then we
1804 ossl_statem_check_finish_init(s
, 0);
1806 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1807 struct ssl_async_args args
;
1813 args
.type
= READFUNC
;
1814 args
.f
.func_read
= s
->method
->ssl_read
;
1816 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1817 *readbytes
= s
->asyncrw
;
1820 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1824 int SSL_read(SSL
*s
, void *buf
, int num
)
1830 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1834 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1837 * The cast is safe here because ret should be <= INT_MAX because num is
1841 ret
= (int)readbytes
;
1846 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1848 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1855 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1860 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1861 return SSL_READ_EARLY_DATA_ERROR
;
1864 switch (s
->early_data_state
) {
1865 case SSL_EARLY_DATA_NONE
:
1866 if (!SSL_in_before(s
)) {
1867 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1868 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1869 return SSL_READ_EARLY_DATA_ERROR
;
1873 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1874 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1875 ret
= SSL_accept(s
);
1878 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1879 return SSL_READ_EARLY_DATA_ERROR
;
1883 case SSL_EARLY_DATA_READ_RETRY
:
1884 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1885 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1886 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1888 * State machine will update early_data_state to
1889 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1892 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1893 != SSL_EARLY_DATA_FINISHED_READING
)) {
1894 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1895 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1896 : SSL_READ_EARLY_DATA_ERROR
;
1899 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1902 return SSL_READ_EARLY_DATA_FINISH
;
1905 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1906 return SSL_READ_EARLY_DATA_ERROR
;
1910 int SSL_get_early_data_status(const SSL
*s
)
1912 return s
->ext
.early_data
;
1915 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1917 if (s
->handshake_func
== NULL
) {
1918 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1922 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1925 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1926 struct ssl_async_args args
;
1932 args
.type
= READFUNC
;
1933 args
.f
.func_read
= s
->method
->ssl_peek
;
1935 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1936 *readbytes
= s
->asyncrw
;
1939 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1943 int SSL_peek(SSL
*s
, void *buf
, int num
)
1949 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1953 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1956 * The cast is safe here because ret should be <= INT_MAX because num is
1960 ret
= (int)readbytes
;
1966 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1968 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1975 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1977 if (s
->handshake_func
== NULL
) {
1978 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1982 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1983 s
->rwstate
= SSL_NOTHING
;
1984 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1988 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1989 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1990 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1991 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1994 /* If we are a client and haven't sent the Finished we better do that */
1995 ossl_statem_check_finish_init(s
, 1);
1997 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1999 struct ssl_async_args args
;
2002 args
.buf
= (void *)buf
;
2004 args
.type
= WRITEFUNC
;
2005 args
.f
.func_write
= s
->method
->ssl_write
;
2007 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2008 *written
= s
->asyncrw
;
2011 return s
->method
->ssl_write(s
, buf
, num
, written
);
2015 int SSL_write(SSL
*s
, const void *buf
, int num
)
2021 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
2025 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2028 * The cast is safe here because ret should be <= INT_MAX because num is
2037 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2039 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2046 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2048 int ret
, early_data_state
;
2050 uint32_t partialwrite
;
2052 switch (s
->early_data_state
) {
2053 case SSL_EARLY_DATA_NONE
:
2055 || !SSL_in_before(s
)
2056 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
2057 && (s
->psk_use_session_cb
== NULL
))) {
2058 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
2059 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2064 case SSL_EARLY_DATA_CONNECT_RETRY
:
2065 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2066 ret
= SSL_connect(s
);
2069 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2074 case SSL_EARLY_DATA_WRITE_RETRY
:
2075 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2077 * We disable partial write for early data because we don't keep track
2078 * of how many bytes we've written between the SSL_write_ex() call and
2079 * the flush if the flush needs to be retried)
2081 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2082 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2083 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2084 s
->mode
|= partialwrite
;
2086 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2089 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2092 case SSL_EARLY_DATA_WRITE_FLUSH
:
2093 /* The buffering BIO is still in place so we need to flush it */
2094 if (statem_flush(s
) != 1)
2097 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2100 case SSL_EARLY_DATA_FINISHED_READING
:
2101 case SSL_EARLY_DATA_READ_RETRY
:
2102 early_data_state
= s
->early_data_state
;
2103 /* We are a server writing to an unauthenticated client */
2104 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2105 ret
= SSL_write_ex(s
, buf
, num
, written
);
2106 /* The buffering BIO is still in place */
2108 (void)BIO_flush(s
->wbio
);
2109 s
->early_data_state
= early_data_state
;
2113 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2118 int SSL_shutdown(SSL
*s
)
2121 * Note that this function behaves differently from what one might
2122 * expect. Return values are 0 for no success (yet), 1 for success; but
2123 * calling it once is usually not enough, even if blocking I/O is used
2124 * (see ssl3_shutdown).
2127 if (s
->handshake_func
== NULL
) {
2128 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2132 if (!SSL_in_init(s
)) {
2133 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2134 struct ssl_async_args args
;
2137 args
.type
= OTHERFUNC
;
2138 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2140 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2142 return s
->method
->ssl_shutdown(s
);
2145 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2150 int SSL_key_update(SSL
*s
, int updatetype
)
2153 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2154 * negotiated, and that it is appropriate to call SSL_key_update() instead
2155 * of SSL_renegotiate().
2157 if (!SSL_IS_TLS13(s
)) {
2158 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2162 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2163 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2164 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2168 if (!SSL_is_init_finished(s
)) {
2169 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2173 ossl_statem_set_in_init(s
, 1);
2174 s
->key_update
= updatetype
;
2178 int SSL_get_key_update_type(const SSL
*s
)
2180 return s
->key_update
;
2183 int SSL_renegotiate(SSL
*s
)
2185 if (SSL_IS_TLS13(s
)) {
2186 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2190 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2191 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2198 return s
->method
->ssl_renegotiate(s
);
2201 int SSL_renegotiate_abbreviated(SSL
*s
)
2203 if (SSL_IS_TLS13(s
)) {
2204 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2208 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2209 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2216 return s
->method
->ssl_renegotiate(s
);
2219 int SSL_renegotiate_pending(const SSL
*s
)
2222 * becomes true when negotiation is requested; false again once a
2223 * handshake has finished
2225 return (s
->renegotiate
!= 0);
2228 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2233 case SSL_CTRL_GET_READ_AHEAD
:
2234 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2235 case SSL_CTRL_SET_READ_AHEAD
:
2236 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2237 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2240 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2241 s
->msg_callback_arg
= parg
;
2245 return (s
->mode
|= larg
);
2246 case SSL_CTRL_CLEAR_MODE
:
2247 return (s
->mode
&= ~larg
);
2248 case SSL_CTRL_GET_MAX_CERT_LIST
:
2249 return (long)s
->max_cert_list
;
2250 case SSL_CTRL_SET_MAX_CERT_LIST
:
2253 l
= (long)s
->max_cert_list
;
2254 s
->max_cert_list
= (size_t)larg
;
2256 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2257 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2259 #ifndef OPENSSL_NO_KTLS
2260 if (s
->wbio
!= NULL
&& BIO_get_ktls_send(s
->wbio
))
2262 #endif /* OPENSSL_NO_KTLS */
2263 s
->max_send_fragment
= larg
;
2264 if (s
->max_send_fragment
< s
->split_send_fragment
)
2265 s
->split_send_fragment
= s
->max_send_fragment
;
2267 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2268 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2270 s
->split_send_fragment
= larg
;
2272 case SSL_CTRL_SET_MAX_PIPELINES
:
2273 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2275 s
->max_pipelines
= larg
;
2277 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2279 case SSL_CTRL_GET_RI_SUPPORT
:
2281 return s
->s3
->send_connection_binding
;
2284 case SSL_CTRL_CERT_FLAGS
:
2285 return (s
->cert
->cert_flags
|= larg
);
2286 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2287 return (s
->cert
->cert_flags
&= ~larg
);
2289 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2291 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2293 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2294 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2296 return TLS_CIPHER_LEN
;
2298 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2299 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2301 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2305 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2306 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2307 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2308 &s
->min_proto_version
);
2309 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2310 return s
->min_proto_version
;
2311 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2312 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2313 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2314 &s
->max_proto_version
);
2315 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2316 return s
->max_proto_version
;
2318 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2322 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2325 case SSL_CTRL_SET_MSG_CALLBACK
:
2326 s
->msg_callback
= (void (*)
2327 (int write_p
, int version
, int content_type
,
2328 const void *buf
, size_t len
, SSL
*ssl
,
2333 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2337 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2339 return ctx
->sessions
;
2342 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2345 /* For some cases with ctx == NULL perform syntax checks */
2348 #ifndef OPENSSL_NO_EC
2349 case SSL_CTRL_SET_GROUPS_LIST
:
2350 return tls1_set_groups_list(NULL
, NULL
, parg
);
2352 case SSL_CTRL_SET_SIGALGS_LIST
:
2353 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2354 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2361 case SSL_CTRL_GET_READ_AHEAD
:
2362 return ctx
->read_ahead
;
2363 case SSL_CTRL_SET_READ_AHEAD
:
2364 l
= ctx
->read_ahead
;
2365 ctx
->read_ahead
= larg
;
2368 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2369 ctx
->msg_callback_arg
= parg
;
2372 case SSL_CTRL_GET_MAX_CERT_LIST
:
2373 return (long)ctx
->max_cert_list
;
2374 case SSL_CTRL_SET_MAX_CERT_LIST
:
2377 l
= (long)ctx
->max_cert_list
;
2378 ctx
->max_cert_list
= (size_t)larg
;
2381 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2384 l
= (long)ctx
->session_cache_size
;
2385 ctx
->session_cache_size
= (size_t)larg
;
2387 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2388 return (long)ctx
->session_cache_size
;
2389 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2390 l
= ctx
->session_cache_mode
;
2391 ctx
->session_cache_mode
= larg
;
2393 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2394 return ctx
->session_cache_mode
;
2396 case SSL_CTRL_SESS_NUMBER
:
2397 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2398 case SSL_CTRL_SESS_CONNECT
:
2399 return tsan_load(&ctx
->stats
.sess_connect
);
2400 case SSL_CTRL_SESS_CONNECT_GOOD
:
2401 return tsan_load(&ctx
->stats
.sess_connect_good
);
2402 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2403 return tsan_load(&ctx
->stats
.sess_connect_renegotiate
);
2404 case SSL_CTRL_SESS_ACCEPT
:
2405 return tsan_load(&ctx
->stats
.sess_accept
);
2406 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2407 return tsan_load(&ctx
->stats
.sess_accept_good
);
2408 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2409 return tsan_load(&ctx
->stats
.sess_accept_renegotiate
);
2410 case SSL_CTRL_SESS_HIT
:
2411 return tsan_load(&ctx
->stats
.sess_hit
);
2412 case SSL_CTRL_SESS_CB_HIT
:
2413 return tsan_load(&ctx
->stats
.sess_cb_hit
);
2414 case SSL_CTRL_SESS_MISSES
:
2415 return tsan_load(&ctx
->stats
.sess_miss
);
2416 case SSL_CTRL_SESS_TIMEOUTS
:
2417 return tsan_load(&ctx
->stats
.sess_timeout
);
2418 case SSL_CTRL_SESS_CACHE_FULL
:
2419 return tsan_load(&ctx
->stats
.sess_cache_full
);
2421 return (ctx
->mode
|= larg
);
2422 case SSL_CTRL_CLEAR_MODE
:
2423 return (ctx
->mode
&= ~larg
);
2424 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2425 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2427 ctx
->max_send_fragment
= larg
;
2428 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2429 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2431 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2432 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2434 ctx
->split_send_fragment
= larg
;
2436 case SSL_CTRL_SET_MAX_PIPELINES
:
2437 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2439 ctx
->max_pipelines
= larg
;
2441 case SSL_CTRL_CERT_FLAGS
:
2442 return (ctx
->cert
->cert_flags
|= larg
);
2443 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2444 return (ctx
->cert
->cert_flags
&= ~larg
);
2445 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2446 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2447 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2448 &ctx
->min_proto_version
);
2449 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2450 return ctx
->min_proto_version
;
2451 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2452 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2453 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2454 &ctx
->max_proto_version
);
2455 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2456 return ctx
->max_proto_version
;
2458 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2462 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2465 case SSL_CTRL_SET_MSG_CALLBACK
:
2466 ctx
->msg_callback
= (void (*)
2467 (int write_p
, int version
, int content_type
,
2468 const void *buf
, size_t len
, SSL
*ssl
,
2473 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2477 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2486 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2487 const SSL_CIPHER
*const *bp
)
2489 if ((*ap
)->id
> (*bp
)->id
)
2491 if ((*ap
)->id
< (*bp
)->id
)
2496 /** return a STACK of the ciphers available for the SSL and in order of
2498 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2501 if (s
->cipher_list
!= NULL
) {
2502 return s
->cipher_list
;
2503 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2504 return s
->ctx
->cipher_list
;
2510 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2512 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2514 return s
->session
->ciphers
;
2517 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2519 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2522 ciphers
= SSL_get_ciphers(s
);
2525 if (!ssl_set_client_disabled(s
))
2527 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2528 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2529 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2531 sk
= sk_SSL_CIPHER_new_null();
2534 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2535 sk_SSL_CIPHER_free(sk
);
2543 /** return a STACK of the ciphers available for the SSL and in order of
2545 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2548 if (s
->cipher_list_by_id
!= NULL
) {
2549 return s
->cipher_list_by_id
;
2550 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2551 return s
->ctx
->cipher_list_by_id
;
2557 /** The old interface to get the same thing as SSL_get_ciphers() */
2558 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2560 const SSL_CIPHER
*c
;
2561 STACK_OF(SSL_CIPHER
) *sk
;
2565 sk
= SSL_get_ciphers(s
);
2566 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2568 c
= sk_SSL_CIPHER_value(sk
, n
);
2574 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2576 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2579 return ctx
->cipher_list
;
2584 * Distinguish between ciphers controlled by set_ciphersuite() and
2585 * set_cipher_list() when counting.
2587 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
2590 const SSL_CIPHER
*c
;
2594 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
2595 c
= sk_SSL_CIPHER_value(sk
, i
);
2596 if (c
->min_tls
>= TLS1_3_VERSION
)
2603 /** specify the ciphers to be used by default by the SSL_CTX */
2604 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2606 STACK_OF(SSL_CIPHER
) *sk
;
2608 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2609 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2612 * ssl_create_cipher_list may return an empty stack if it was unable to
2613 * find a cipher matching the given rule string (for example if the rule
2614 * string specifies a cipher which has been disabled). This is not an
2615 * error as far as ssl_create_cipher_list is concerned, and hence
2616 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2620 else if (cipher_list_tls12_num(sk
) == 0) {
2621 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2627 /** specify the ciphers to be used by the SSL */
2628 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2630 STACK_OF(SSL_CIPHER
) *sk
;
2632 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2633 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2635 /* see comment in SSL_CTX_set_cipher_list */
2638 else if (cipher_list_tls12_num(sk
) == 0) {
2639 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2645 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2648 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2649 const SSL_CIPHER
*c
;
2653 || s
->session
== NULL
2654 || s
->session
->ciphers
== NULL
2659 clntsk
= s
->session
->ciphers
;
2660 srvrsk
= SSL_get_ciphers(s
);
2661 if (clntsk
== NULL
|| srvrsk
== NULL
)
2664 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2667 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2670 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2671 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2674 n
= strlen(c
->name
);
2690 /** return a servername extension value if provided in Client Hello, or NULL.
2691 * So far, only host_name types are defined (RFC 3546).
2694 const char *SSL_get_servername(const SSL
*s
, const int type
)
2696 if (type
!= TLSEXT_NAMETYPE_host_name
)
2700 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2701 * SNI value to return if we are resuming/resumed. N.B. that we still
2702 * call the relevant callbacks for such resumption flows, and callbacks
2703 * might error out if there is not a SNI value available.
2706 return s
->session
->ext
.hostname
;
2707 return s
->ext
.hostname
;
2710 int SSL_get_servername_type(const SSL
*s
)
2713 && (!s
->ext
.hostname
? s
->session
->
2714 ext
.hostname
: s
->ext
.hostname
))
2715 return TLSEXT_NAMETYPE_host_name
;
2720 * SSL_select_next_proto implements the standard protocol selection. It is
2721 * expected that this function is called from the callback set by
2722 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2723 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2724 * not included in the length. A byte string of length 0 is invalid. No byte
2725 * string may be truncated. The current, but experimental algorithm for
2726 * selecting the protocol is: 1) If the server doesn't support NPN then this
2727 * is indicated to the callback. In this case, the client application has to
2728 * abort the connection or have a default application level protocol. 2) If
2729 * the server supports NPN, but advertises an empty list then the client
2730 * selects the first protocol in its list, but indicates via the API that this
2731 * fallback case was enacted. 3) Otherwise, the client finds the first
2732 * protocol in the server's list that it supports and selects this protocol.
2733 * This is because it's assumed that the server has better information about
2734 * which protocol a client should use. 4) If the client doesn't support any
2735 * of the server's advertised protocols, then this is treated the same as
2736 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2737 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2739 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2740 const unsigned char *server
,
2741 unsigned int server_len
,
2742 const unsigned char *client
, unsigned int client_len
)
2745 const unsigned char *result
;
2746 int status
= OPENSSL_NPN_UNSUPPORTED
;
2749 * For each protocol in server preference order, see if we support it.
2751 for (i
= 0; i
< server_len
;) {
2752 for (j
= 0; j
< client_len
;) {
2753 if (server
[i
] == client
[j
] &&
2754 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2755 /* We found a match */
2756 result
= &server
[i
];
2757 status
= OPENSSL_NPN_NEGOTIATED
;
2767 /* There's no overlap between our protocols and the server's list. */
2769 status
= OPENSSL_NPN_NO_OVERLAP
;
2772 *out
= (unsigned char *)result
+ 1;
2773 *outlen
= result
[0];
2777 #ifndef OPENSSL_NO_NEXTPROTONEG
2779 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2780 * client's requested protocol for this connection and returns 0. If the
2781 * client didn't request any protocol, then *data is set to NULL. Note that
2782 * the client can request any protocol it chooses. The value returned from
2783 * this function need not be a member of the list of supported protocols
2784 * provided by the callback.
2786 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2793 *len
= (unsigned int)s
->ext
.npn_len
;
2798 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2799 * a TLS server needs a list of supported protocols for Next Protocol
2800 * Negotiation. The returned list must be in wire format. The list is
2801 * returned by setting |out| to point to it and |outlen| to its length. This
2802 * memory will not be modified, but one should assume that the SSL* keeps a
2803 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2804 * wishes to advertise. Otherwise, no such extension will be included in the
2807 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2808 SSL_CTX_npn_advertised_cb_func cb
,
2811 ctx
->ext
.npn_advertised_cb
= cb
;
2812 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2816 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2817 * client needs to select a protocol from the server's provided list. |out|
2818 * must be set to point to the selected protocol (which may be within |in|).
2819 * The length of the protocol name must be written into |outlen|. The
2820 * server's advertised protocols are provided in |in| and |inlen|. The
2821 * callback can assume that |in| is syntactically valid. The client must
2822 * select a protocol. It is fatal to the connection if this callback returns
2823 * a value other than SSL_TLSEXT_ERR_OK.
2825 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2826 SSL_CTX_npn_select_cb_func cb
,
2829 ctx
->ext
.npn_select_cb
= cb
;
2830 ctx
->ext
.npn_select_cb_arg
= arg
;
2835 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2836 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2837 * length-prefixed strings). Returns 0 on success.
2839 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2840 unsigned int protos_len
)
2842 OPENSSL_free(ctx
->ext
.alpn
);
2843 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2844 if (ctx
->ext
.alpn
== NULL
) {
2845 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2848 ctx
->ext
.alpn_len
= protos_len
;
2854 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2855 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2856 * length-prefixed strings). Returns 0 on success.
2858 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2859 unsigned int protos_len
)
2861 OPENSSL_free(ssl
->ext
.alpn
);
2862 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2863 if (ssl
->ext
.alpn
== NULL
) {
2864 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2867 ssl
->ext
.alpn_len
= protos_len
;
2873 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2874 * called during ClientHello processing in order to select an ALPN protocol
2875 * from the client's list of offered protocols.
2877 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2878 SSL_CTX_alpn_select_cb_func cb
,
2881 ctx
->ext
.alpn_select_cb
= cb
;
2882 ctx
->ext
.alpn_select_cb_arg
= arg
;
2886 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2887 * On return it sets |*data| to point to |*len| bytes of protocol name
2888 * (not including the leading length-prefix byte). If the server didn't
2889 * respond with a negotiated protocol then |*len| will be zero.
2891 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2896 *data
= ssl
->s3
->alpn_selected
;
2900 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2903 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2904 const char *label
, size_t llen
,
2905 const unsigned char *context
, size_t contextlen
,
2908 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2911 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2913 contextlen
, use_context
);
2916 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2917 const char *label
, size_t llen
,
2918 const unsigned char *context
,
2921 if (s
->version
!= TLS1_3_VERSION
)
2924 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2925 context
, contextlen
);
2928 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2930 const unsigned char *session_id
= a
->session_id
;
2932 unsigned char tmp_storage
[4];
2934 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2935 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2936 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2937 session_id
= tmp_storage
;
2941 ((unsigned long)session_id
[0]) |
2942 ((unsigned long)session_id
[1] << 8L) |
2943 ((unsigned long)session_id
[2] << 16L) |
2944 ((unsigned long)session_id
[3] << 24L);
2949 * NB: If this function (or indeed the hash function which uses a sort of
2950 * coarser function than this one) is changed, ensure
2951 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2952 * being able to construct an SSL_SESSION that will collide with any existing
2953 * session with a matching session ID.
2955 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2957 if (a
->ssl_version
!= b
->ssl_version
)
2959 if (a
->session_id_length
!= b
->session_id_length
)
2961 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2965 * These wrapper functions should remain rather than redeclaring
2966 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2967 * variable. The reason is that the functions aren't static, they're exposed
2971 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2973 SSL_CTX
*ret
= NULL
;
2976 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2980 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2983 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2984 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2987 ret
= OPENSSL_zalloc(sizeof(*ret
));
2992 ret
->min_proto_version
= 0;
2993 ret
->max_proto_version
= 0;
2994 ret
->mode
= SSL_MODE_AUTO_RETRY
;
2995 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2996 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2997 /* We take the system default. */
2998 ret
->session_timeout
= meth
->get_timeout();
2999 ret
->references
= 1;
3000 ret
->lock
= CRYPTO_THREAD_lock_new();
3001 if (ret
->lock
== NULL
) {
3002 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3006 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3007 ret
->verify_mode
= SSL_VERIFY_NONE
;
3008 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3011 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3012 if (ret
->sessions
== NULL
)
3014 ret
->cert_store
= X509_STORE_new();
3015 if (ret
->cert_store
== NULL
)
3017 #ifndef OPENSSL_NO_CT
3018 ret
->ctlog_store
= CTLOG_STORE_new();
3019 if (ret
->ctlog_store
== NULL
)
3023 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
3026 if (!ssl_create_cipher_list(ret
->method
,
3027 ret
->tls13_ciphersuites
,
3028 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3029 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
3030 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3031 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3035 ret
->param
= X509_VERIFY_PARAM_new();
3036 if (ret
->param
== NULL
)
3039 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
3040 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
3043 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
3044 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
3048 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3051 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3054 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3057 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3060 /* No compression for DTLS */
3061 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3062 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3064 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3065 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3067 /* Setup RFC5077 ticket keys */
3068 if ((RAND_bytes(ret
->ext
.tick_key_name
,
3069 sizeof(ret
->ext
.tick_key_name
)) <= 0)
3070 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
3071 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
3072 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
3073 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
3074 ret
->options
|= SSL_OP_NO_TICKET
;
3076 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
3077 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
3080 #ifndef OPENSSL_NO_SRP
3081 if (!SSL_CTX_SRP_CTX_init(ret
))
3084 #ifndef OPENSSL_NO_ENGINE
3085 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3086 # define eng_strx(x) #x
3087 # define eng_str(x) eng_strx(x)
3088 /* Use specific client engine automatically... ignore errors */
3091 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3094 ENGINE_load_builtin_engines();
3095 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3097 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3103 * Default is to connect to non-RI servers. When RI is more widely
3104 * deployed might change this.
3106 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3108 * Disable compression by default to prevent CRIME. Applications can
3109 * re-enable compression by configuring
3110 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3111 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3112 * middlebox compatibility by default. This may be disabled by default in
3113 * a later OpenSSL version.
3115 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3117 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3120 * We cannot usefully set a default max_early_data here (which gets
3121 * propagated in SSL_new(), for the following reason: setting the
3122 * SSL field causes tls_construct_stoc_early_data() to tell the
3123 * client that early data will be accepted when constructing a TLS 1.3
3124 * session ticket, and the client will accordingly send us early data
3125 * when using that ticket (if the client has early data to send).
3126 * However, in order for the early data to actually be consumed by
3127 * the application, the application must also have calls to
3128 * SSL_read_early_data(); otherwise we'll just skip past the early data
3129 * and ignore it. So, since the application must add calls to
3130 * SSL_read_early_data(), we also require them to add
3131 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3132 * eliminating the bandwidth-wasting early data in the case described
3135 ret
->max_early_data
= 0;
3138 * Default recv_max_early_data is a fully loaded single record. Could be
3139 * split across multiple records in practice. We set this differently to
3140 * max_early_data so that, in the default case, we do not advertise any
3141 * support for early_data, but if a client were to send us some (e.g.
3142 * because of an old, stale ticket) then we will tolerate it and skip over
3145 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3147 /* By default we send two session tickets automatically in TLSv1.3 */
3148 ret
->num_tickets
= 2;
3150 ssl_ctx_system_config(ret
);
3154 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3160 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3164 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3167 REF_PRINT_COUNT("SSL_CTX", ctx
);
3168 REF_ASSERT_ISNT(i
< 2);
3169 return ((i
> 1) ? 1 : 0);
3172 void SSL_CTX_free(SSL_CTX
*a
)
3179 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3180 REF_PRINT_COUNT("SSL_CTX", a
);
3183 REF_ASSERT_ISNT(i
< 0);
3185 X509_VERIFY_PARAM_free(a
->param
);
3186 dane_ctx_final(&a
->dane
);
3189 * Free internal session cache. However: the remove_cb() may reference
3190 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3191 * after the sessions were flushed.
3192 * As the ex_data handling routines might also touch the session cache,
3193 * the most secure solution seems to be: empty (flush) the cache, then
3194 * free ex_data, then finally free the cache.
3195 * (See ticket [openssl.org #212].)
3197 if (a
->sessions
!= NULL
)
3198 SSL_CTX_flush_sessions(a
, 0);
3200 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3201 lh_SSL_SESSION_free(a
->sessions
);
3202 X509_STORE_free(a
->cert_store
);
3203 #ifndef OPENSSL_NO_CT
3204 CTLOG_STORE_free(a
->ctlog_store
);
3206 sk_SSL_CIPHER_free(a
->cipher_list
);
3207 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3208 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3209 ssl_cert_free(a
->cert
);
3210 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3211 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3212 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3213 a
->comp_methods
= NULL
;
3214 #ifndef OPENSSL_NO_SRTP
3215 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3217 #ifndef OPENSSL_NO_SRP
3218 SSL_CTX_SRP_CTX_free(a
);
3220 #ifndef OPENSSL_NO_ENGINE
3221 ENGINE_finish(a
->client_cert_engine
);
3224 #ifndef OPENSSL_NO_EC
3225 OPENSSL_free(a
->ext
.ecpointformats
);
3226 OPENSSL_free(a
->ext
.supportedgroups
);
3228 OPENSSL_free(a
->ext
.alpn
);
3229 OPENSSL_secure_free(a
->ext
.secure
);
3231 CRYPTO_THREAD_lock_free(a
->lock
);
3236 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3238 ctx
->default_passwd_callback
= cb
;
3241 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3243 ctx
->default_passwd_callback_userdata
= u
;
3246 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3248 return ctx
->default_passwd_callback
;
3251 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3253 return ctx
->default_passwd_callback_userdata
;
3256 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3258 s
->default_passwd_callback
= cb
;
3261 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3263 s
->default_passwd_callback_userdata
= u
;
3266 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3268 return s
->default_passwd_callback
;
3271 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3273 return s
->default_passwd_callback_userdata
;
3276 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3277 int (*cb
) (X509_STORE_CTX
*, void *),
3280 ctx
->app_verify_callback
= cb
;
3281 ctx
->app_verify_arg
= arg
;
3284 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3285 int (*cb
) (int, X509_STORE_CTX
*))
3287 ctx
->verify_mode
= mode
;
3288 ctx
->default_verify_callback
= cb
;
3291 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3293 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3296 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3298 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3301 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3303 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3306 void ssl_set_masks(SSL
*s
)
3309 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3310 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3311 unsigned long mask_k
, mask_a
;
3312 #ifndef OPENSSL_NO_EC
3313 int have_ecc_cert
, ecdsa_ok
;
3318 #ifndef OPENSSL_NO_DH
3319 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3324 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3325 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3326 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3327 #ifndef OPENSSL_NO_EC
3328 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3333 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3334 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3336 #ifndef OPENSSL_NO_GOST
3337 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3338 mask_k
|= SSL_kGOST
;
3339 mask_a
|= SSL_aGOST12
;
3341 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3342 mask_k
|= SSL_kGOST
;
3343 mask_a
|= SSL_aGOST12
;
3345 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3346 mask_k
|= SSL_kGOST
;
3347 mask_a
|= SSL_aGOST01
;
3358 * If we only have an RSA-PSS certificate allow RSA authentication
3359 * if TLS 1.2 and peer supports it.
3362 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3363 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3364 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3371 mask_a
|= SSL_aNULL
;
3374 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3375 * depending on the key usage extension.
3377 #ifndef OPENSSL_NO_EC
3378 if (have_ecc_cert
) {
3380 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3381 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3382 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3385 mask_a
|= SSL_aECDSA
;
3387 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3388 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3389 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3390 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3391 mask_a
|= SSL_aECDSA
;
3393 /* Allow Ed448 for TLS 1.2 if peer supports it */
3394 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3395 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3396 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3397 mask_a
|= SSL_aECDSA
;
3400 #ifndef OPENSSL_NO_EC
3401 mask_k
|= SSL_kECDHE
;
3404 #ifndef OPENSSL_NO_PSK
3407 if (mask_k
& SSL_kRSA
)
3408 mask_k
|= SSL_kRSAPSK
;
3409 if (mask_k
& SSL_kDHE
)
3410 mask_k
|= SSL_kDHEPSK
;
3411 if (mask_k
& SSL_kECDHE
)
3412 mask_k
|= SSL_kECDHEPSK
;
3415 s
->s3
->tmp
.mask_k
= mask_k
;
3416 s
->s3
->tmp
.mask_a
= mask_a
;
3419 #ifndef OPENSSL_NO_EC
3421 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3423 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3424 /* key usage, if present, must allow signing */
3425 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3426 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3427 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3431 return 1; /* all checks are ok */
3436 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3437 size_t *serverinfo_length
)
3439 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3440 *serverinfo_length
= 0;
3442 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3445 *serverinfo
= cpk
->serverinfo
;
3446 *serverinfo_length
= cpk
->serverinfo_length
;
3450 void ssl_update_cache(SSL
*s
, int mode
)
3455 * If the session_id_length is 0, we are not supposed to cache it, and it
3456 * would be rather hard to do anyway :-)
3458 if (s
->session
->session_id_length
== 0)
3462 * If sid_ctx_length is 0 there is no specific application context
3463 * associated with this session, so when we try to resume it and
3464 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3465 * indication that this is actually a session for the proper application
3466 * context, and the *handshake* will fail, not just the resumption attempt.
3467 * Do not cache (on the server) these sessions that are not resumable
3468 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3470 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3471 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3474 i
= s
->session_ctx
->session_cache_mode
;
3476 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3478 * Add the session to the internal cache. In server side TLSv1.3 we
3479 * normally don't do this because by default it's a full stateless ticket
3480 * with only a dummy session id so there is no reason to cache it,
3482 * - we are doing early_data, in which case we cache so that we can
3484 * - the application has set a remove_session_cb so needs to know about
3485 * session timeout events
3486 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3488 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3489 && (!SSL_IS_TLS13(s
)
3491 || (s
->max_early_data
> 0
3492 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3493 || s
->session_ctx
->remove_session_cb
!= NULL
3494 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3495 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3498 * Add the session to the external cache. We do this even in server side
3499 * TLSv1.3 without early data because some applications just want to
3500 * know about the creation of a session and aren't doing a full cache.
3502 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3503 SSL_SESSION_up_ref(s
->session
);
3504 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3505 SSL_SESSION_free(s
->session
);
3509 /* auto flush every 255 connections */
3510 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3511 TSAN_QUALIFIER
int *stat
;
3512 if (mode
& SSL_SESS_CACHE_CLIENT
)
3513 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3515 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3516 if ((tsan_load(stat
) & 0xff) == 0xff)
3517 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3521 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
3526 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
3531 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3535 if (s
->method
!= meth
) {
3536 const SSL_METHOD
*sm
= s
->method
;
3537 int (*hf
) (SSL
*) = s
->handshake_func
;
3539 if (sm
->version
== meth
->version
)
3544 ret
= s
->method
->ssl_new(s
);
3547 if (hf
== sm
->ssl_connect
)
3548 s
->handshake_func
= meth
->ssl_connect
;
3549 else if (hf
== sm
->ssl_accept
)
3550 s
->handshake_func
= meth
->ssl_accept
;
3555 int SSL_get_error(const SSL
*s
, int i
)
3562 return SSL_ERROR_NONE
;
3565 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3566 * where we do encode the error
3568 if ((l
= ERR_peek_error()) != 0) {
3569 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3570 return SSL_ERROR_SYSCALL
;
3572 return SSL_ERROR_SSL
;
3575 if (SSL_want_read(s
)) {
3576 bio
= SSL_get_rbio(s
);
3577 if (BIO_should_read(bio
))
3578 return SSL_ERROR_WANT_READ
;
3579 else if (BIO_should_write(bio
))
3581 * This one doesn't make too much sense ... We never try to write
3582 * to the rbio, and an application program where rbio and wbio
3583 * are separate couldn't even know what it should wait for.
3584 * However if we ever set s->rwstate incorrectly (so that we have
3585 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3586 * wbio *are* the same, this test works around that bug; so it
3587 * might be safer to keep it.
3589 return SSL_ERROR_WANT_WRITE
;
3590 else if (BIO_should_io_special(bio
)) {
3591 reason
= BIO_get_retry_reason(bio
);
3592 if (reason
== BIO_RR_CONNECT
)
3593 return SSL_ERROR_WANT_CONNECT
;
3594 else if (reason
== BIO_RR_ACCEPT
)
3595 return SSL_ERROR_WANT_ACCEPT
;
3597 return SSL_ERROR_SYSCALL
; /* unknown */
3601 if (SSL_want_write(s
)) {
3602 /* Access wbio directly - in order to use the buffered bio if present */
3604 if (BIO_should_write(bio
))
3605 return SSL_ERROR_WANT_WRITE
;
3606 else if (BIO_should_read(bio
))
3608 * See above (SSL_want_read(s) with BIO_should_write(bio))
3610 return SSL_ERROR_WANT_READ
;
3611 else if (BIO_should_io_special(bio
)) {
3612 reason
= BIO_get_retry_reason(bio
);
3613 if (reason
== BIO_RR_CONNECT
)
3614 return SSL_ERROR_WANT_CONNECT
;
3615 else if (reason
== BIO_RR_ACCEPT
)
3616 return SSL_ERROR_WANT_ACCEPT
;
3618 return SSL_ERROR_SYSCALL
;
3621 if (SSL_want_x509_lookup(s
))
3622 return SSL_ERROR_WANT_X509_LOOKUP
;
3623 if (SSL_want_async(s
))
3624 return SSL_ERROR_WANT_ASYNC
;
3625 if (SSL_want_async_job(s
))
3626 return SSL_ERROR_WANT_ASYNC_JOB
;
3627 if (SSL_want_client_hello_cb(s
))
3628 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3630 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3631 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3632 return SSL_ERROR_ZERO_RETURN
;
3634 return SSL_ERROR_SYSCALL
;
3637 static int ssl_do_handshake_intern(void *vargs
)
3639 struct ssl_async_args
*args
;
3642 args
= (struct ssl_async_args
*)vargs
;
3645 return s
->handshake_func(s
);
3648 int SSL_do_handshake(SSL
*s
)
3652 if (s
->handshake_func
== NULL
) {
3653 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3657 ossl_statem_check_finish_init(s
, -1);
3659 s
->method
->ssl_renegotiate_check(s
, 0);
3661 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3662 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3663 struct ssl_async_args args
;
3667 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3669 ret
= s
->handshake_func(s
);
3675 void SSL_set_accept_state(SSL
*s
)
3679 ossl_statem_clear(s
);
3680 s
->handshake_func
= s
->method
->ssl_accept
;
3684 void SSL_set_connect_state(SSL
*s
)
3688 ossl_statem_clear(s
);
3689 s
->handshake_func
= s
->method
->ssl_connect
;
3693 int ssl_undefined_function(SSL
*s
)
3695 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3699 int ssl_undefined_void_function(void)
3701 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3702 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3706 int ssl_undefined_const_function(const SSL
*s
)
3711 const SSL_METHOD
*ssl_bad_method(int ver
)
3713 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3717 const char *ssl_protocol_to_string(int version
)
3721 case TLS1_3_VERSION
:
3724 case TLS1_2_VERSION
:
3727 case TLS1_1_VERSION
:
3742 case DTLS1_2_VERSION
:
3750 const char *SSL_get_version(const SSL
*s
)
3752 return ssl_protocol_to_string(s
->version
);
3755 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
3757 STACK_OF(X509_NAME
) *sk
;
3766 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
3768 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
3769 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
3771 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3774 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
3776 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3785 SSL
*SSL_dup(SSL
*s
)
3790 /* If we're not quiescent, just up_ref! */
3791 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3792 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3797 * Otherwise, copy configuration state, and session if set.
3799 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3802 if (s
->session
!= NULL
) {
3804 * Arranges to share the same session via up_ref. This "copies"
3805 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3807 if (!SSL_copy_session_id(ret
, s
))
3811 * No session has been established yet, so we have to expect that
3812 * s->cert or ret->cert will be changed later -- they should not both
3813 * point to the same object, and thus we can't use
3814 * SSL_copy_session_id.
3816 if (!SSL_set_ssl_method(ret
, s
->method
))
3819 if (s
->cert
!= NULL
) {
3820 ssl_cert_free(ret
->cert
);
3821 ret
->cert
= ssl_cert_dup(s
->cert
);
3822 if (ret
->cert
== NULL
)
3826 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3827 (int)s
->sid_ctx_length
))
3831 if (!ssl_dane_dup(ret
, s
))
3833 ret
->version
= s
->version
;
3834 ret
->options
= s
->options
;
3835 ret
->mode
= s
->mode
;
3836 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3837 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3838 ret
->msg_callback
= s
->msg_callback
;
3839 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3840 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3841 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3842 ret
->generate_session_id
= s
->generate_session_id
;
3844 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3846 /* copy app data, a little dangerous perhaps */
3847 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3850 /* setup rbio, and wbio */
3851 if (s
->rbio
!= NULL
) {
3852 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3855 if (s
->wbio
!= NULL
) {
3856 if (s
->wbio
!= s
->rbio
) {
3857 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3860 BIO_up_ref(ret
->rbio
);
3861 ret
->wbio
= ret
->rbio
;
3865 ret
->server
= s
->server
;
3866 if (s
->handshake_func
) {
3868 SSL_set_accept_state(ret
);
3870 SSL_set_connect_state(ret
);
3872 ret
->shutdown
= s
->shutdown
;
3875 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3876 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3878 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3880 /* dup the cipher_list and cipher_list_by_id stacks */
3881 if (s
->cipher_list
!= NULL
) {
3882 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3885 if (s
->cipher_list_by_id
!= NULL
)
3886 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3890 /* Dup the client_CA list */
3891 if (!dup_ca_names(&ret
->ca_names
, s
->ca_names
)
3892 || !dup_ca_names(&ret
->client_ca_names
, s
->client_ca_names
))
3902 void ssl_clear_cipher_ctx(SSL
*s
)
3904 if (s
->enc_read_ctx
!= NULL
) {
3905 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3906 s
->enc_read_ctx
= NULL
;
3908 if (s
->enc_write_ctx
!= NULL
) {
3909 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3910 s
->enc_write_ctx
= NULL
;
3912 #ifndef OPENSSL_NO_COMP
3913 COMP_CTX_free(s
->expand
);
3915 COMP_CTX_free(s
->compress
);
3920 X509
*SSL_get_certificate(const SSL
*s
)
3922 if (s
->cert
!= NULL
)
3923 return s
->cert
->key
->x509
;
3928 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3930 if (s
->cert
!= NULL
)
3931 return s
->cert
->key
->privatekey
;
3936 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3938 if (ctx
->cert
!= NULL
)
3939 return ctx
->cert
->key
->x509
;
3944 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3946 if (ctx
->cert
!= NULL
)
3947 return ctx
->cert
->key
->privatekey
;
3952 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3954 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3955 return s
->session
->cipher
;
3959 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3961 return s
->s3
->tmp
.new_cipher
;
3964 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
3966 #ifndef OPENSSL_NO_COMP
3967 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3973 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
3975 #ifndef OPENSSL_NO_COMP
3976 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3982 int ssl_init_wbio_buffer(SSL
*s
)
3986 if (s
->bbio
!= NULL
) {
3987 /* Already buffered. */
3991 bbio
= BIO_new(BIO_f_buffer());
3992 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3994 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3998 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4003 int ssl_free_wbio_buffer(SSL
*s
)
4005 /* callers ensure s is never null */
4006 if (s
->bbio
== NULL
)
4009 s
->wbio
= BIO_pop(s
->wbio
);
4016 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4018 ctx
->quiet_shutdown
= mode
;
4021 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4023 return ctx
->quiet_shutdown
;
4026 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4028 s
->quiet_shutdown
= mode
;
4031 int SSL_get_quiet_shutdown(const SSL
*s
)
4033 return s
->quiet_shutdown
;
4036 void SSL_set_shutdown(SSL
*s
, int mode
)
4041 int SSL_get_shutdown(const SSL
*s
)
4046 int SSL_version(const SSL
*s
)
4051 int SSL_client_version(const SSL
*s
)
4053 return s
->client_version
;
4056 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4061 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4064 if (ssl
->ctx
== ctx
)
4067 ctx
= ssl
->session_ctx
;
4068 new_cert
= ssl_cert_dup(ctx
->cert
);
4069 if (new_cert
== NULL
) {
4073 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
4074 ssl_cert_free(new_cert
);
4078 ssl_cert_free(ssl
->cert
);
4079 ssl
->cert
= new_cert
;
4082 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4083 * so setter APIs must prevent invalid lengths from entering the system.
4085 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
4089 * If the session ID context matches that of the parent SSL_CTX,
4090 * inherit it from the new SSL_CTX as well. If however the context does
4091 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4092 * leave it unchanged.
4094 if ((ssl
->ctx
!= NULL
) &&
4095 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4096 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4097 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4098 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4101 SSL_CTX_up_ref(ctx
);
4102 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4108 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4110 return X509_STORE_set_default_paths(ctx
->cert_store
);
4113 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4115 X509_LOOKUP
*lookup
;
4117 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4120 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4122 /* Clear any errors if the default directory does not exist */
4128 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4130 X509_LOOKUP
*lookup
;
4132 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4136 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4138 /* Clear any errors if the default file does not exist */
4144 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4147 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4150 void SSL_set_info_callback(SSL
*ssl
,
4151 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4153 ssl
->info_callback
= cb
;
4157 * One compiler (Diab DCC) doesn't like argument names in returned function
4160 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4163 return ssl
->info_callback
;
4166 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4168 ssl
->verify_result
= arg
;
4171 long SSL_get_verify_result(const SSL
*ssl
)
4173 return ssl
->verify_result
;
4176 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4179 return sizeof(ssl
->s3
->client_random
);
4180 if (outlen
> sizeof(ssl
->s3
->client_random
))
4181 outlen
= sizeof(ssl
->s3
->client_random
);
4182 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4186 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4189 return sizeof(ssl
->s3
->server_random
);
4190 if (outlen
> sizeof(ssl
->s3
->server_random
))
4191 outlen
= sizeof(ssl
->s3
->server_random
);
4192 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4196 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4197 unsigned char *out
, size_t outlen
)
4200 return session
->master_key_length
;
4201 if (outlen
> session
->master_key_length
)
4202 outlen
= session
->master_key_length
;
4203 memcpy(out
, session
->master_key
, outlen
);
4207 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4210 if (len
> sizeof(sess
->master_key
))
4213 memcpy(sess
->master_key
, in
, len
);
4214 sess
->master_key_length
= len
;
4219 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4221 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4224 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4226 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4229 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4231 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4234 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4236 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4239 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4241 return ctx
->cert_store
;
4244 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4246 X509_STORE_free(ctx
->cert_store
);
4247 ctx
->cert_store
= store
;
4250 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4253 X509_STORE_up_ref(store
);
4254 SSL_CTX_set_cert_store(ctx
, store
);
4257 int SSL_want(const SSL
*s
)
4263 * \brief Set the callback for generating temporary DH keys.
4264 * \param ctx the SSL context.
4265 * \param dh the callback
4268 #ifndef OPENSSL_NO_DH
4269 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4270 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4273 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4276 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4279 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4283 #ifndef OPENSSL_NO_PSK
4284 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4286 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4287 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4290 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4291 if (identity_hint
!= NULL
) {
4292 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4293 if (ctx
->cert
->psk_identity_hint
== NULL
)
4296 ctx
->cert
->psk_identity_hint
= NULL
;
4300 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4305 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4306 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4309 OPENSSL_free(s
->cert
->psk_identity_hint
);
4310 if (identity_hint
!= NULL
) {
4311 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4312 if (s
->cert
->psk_identity_hint
== NULL
)
4315 s
->cert
->psk_identity_hint
= NULL
;
4319 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4321 if (s
== NULL
|| s
->session
== NULL
)
4323 return s
->session
->psk_identity_hint
;
4326 const char *SSL_get_psk_identity(const SSL
*s
)
4328 if (s
== NULL
|| s
->session
== NULL
)
4330 return s
->session
->psk_identity
;
4333 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4335 s
->psk_client_callback
= cb
;
4338 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4340 ctx
->psk_client_callback
= cb
;
4343 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4345 s
->psk_server_callback
= cb
;
4348 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4350 ctx
->psk_server_callback
= cb
;
4354 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4356 s
->psk_find_session_cb
= cb
;
4359 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4360 SSL_psk_find_session_cb_func cb
)
4362 ctx
->psk_find_session_cb
= cb
;
4365 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4367 s
->psk_use_session_cb
= cb
;
4370 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4371 SSL_psk_use_session_cb_func cb
)
4373 ctx
->psk_use_session_cb
= cb
;
4376 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4377 void (*cb
) (int write_p
, int version
,
4378 int content_type
, const void *buf
,
4379 size_t len
, SSL
*ssl
, void *arg
))
4381 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4384 void SSL_set_msg_callback(SSL
*ssl
,
4385 void (*cb
) (int write_p
, int version
,
4386 int content_type
, const void *buf
,
4387 size_t len
, SSL
*ssl
, void *arg
))
4389 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4392 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4393 int (*cb
) (SSL
*ssl
,
4397 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4398 (void (*)(void))cb
);
4401 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4402 int (*cb
) (SSL
*ssl
,
4403 int is_forward_secure
))
4405 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4406 (void (*)(void))cb
);
4409 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4410 size_t (*cb
) (SSL
*ssl
, int type
,
4411 size_t len
, void *arg
))
4413 ctx
->record_padding_cb
= cb
;
4416 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4418 ctx
->record_padding_arg
= arg
;
4421 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
4423 return ctx
->record_padding_arg
;
4426 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4428 /* block size of 0 or 1 is basically no padding */
4429 if (block_size
== 1)
4430 ctx
->block_padding
= 0;
4431 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4432 ctx
->block_padding
= block_size
;
4438 void SSL_set_record_padding_callback(SSL
*ssl
,
4439 size_t (*cb
) (SSL
*ssl
, int type
,
4440 size_t len
, void *arg
))
4442 ssl
->record_padding_cb
= cb
;
4445 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4447 ssl
->record_padding_arg
= arg
;
4450 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
4452 return ssl
->record_padding_arg
;
4455 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4457 /* block size of 0 or 1 is basically no padding */
4458 if (block_size
== 1)
4459 ssl
->block_padding
= 0;
4460 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4461 ssl
->block_padding
= block_size
;
4467 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4469 s
->num_tickets
= num_tickets
;
4474 size_t SSL_get_num_tickets(const SSL
*s
)
4476 return s
->num_tickets
;
4479 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4481 ctx
->num_tickets
= num_tickets
;
4486 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
4488 return ctx
->num_tickets
;
4492 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4493 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4494 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4495 * Returns the newly allocated ctx;
4498 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4500 ssl_clear_hash_ctx(hash
);
4501 *hash
= EVP_MD_CTX_new();
4502 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4503 EVP_MD_CTX_free(*hash
);
4510 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4513 EVP_MD_CTX_free(*hash
);
4517 /* Retrieve handshake hashes */
4518 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4521 EVP_MD_CTX
*ctx
= NULL
;
4522 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4523 int hashleni
= EVP_MD_CTX_size(hdgst
);
4526 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4527 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4528 ERR_R_INTERNAL_ERROR
);
4532 ctx
= EVP_MD_CTX_new();
4536 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4537 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4538 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4539 ERR_R_INTERNAL_ERROR
);
4543 *hashlen
= hashleni
;
4547 EVP_MD_CTX_free(ctx
);
4551 int SSL_session_reused(SSL
*s
)
4556 int SSL_is_server(const SSL
*s
)
4561 #if !OPENSSL_API_1_1_0
4562 void SSL_set_debug(SSL
*s
, int debug
)
4564 /* Old function was do-nothing anyway... */
4570 void SSL_set_security_level(SSL
*s
, int level
)
4572 s
->cert
->sec_level
= level
;
4575 int SSL_get_security_level(const SSL
*s
)
4577 return s
->cert
->sec_level
;
4580 void SSL_set_security_callback(SSL
*s
,
4581 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4582 int op
, int bits
, int nid
,
4583 void *other
, void *ex
))
4585 s
->cert
->sec_cb
= cb
;
4588 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4589 const SSL_CTX
*ctx
, int op
,
4590 int bits
, int nid
, void *other
,
4592 return s
->cert
->sec_cb
;
4595 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4597 s
->cert
->sec_ex
= ex
;
4600 void *SSL_get0_security_ex_data(const SSL
*s
)
4602 return s
->cert
->sec_ex
;
4605 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4607 ctx
->cert
->sec_level
= level
;
4610 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4612 return ctx
->cert
->sec_level
;
4615 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4616 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4617 int op
, int bits
, int nid
,
4618 void *other
, void *ex
))
4620 ctx
->cert
->sec_cb
= cb
;
4623 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4629 return ctx
->cert
->sec_cb
;
4632 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4634 ctx
->cert
->sec_ex
= ex
;
4637 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4639 return ctx
->cert
->sec_ex
;
4643 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4644 * can return unsigned long, instead of the generic long return value from the
4645 * control interface.
4647 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4649 return ctx
->options
;
4652 unsigned long SSL_get_options(const SSL
*s
)
4657 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4659 return ctx
->options
|= op
;
4662 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4664 return s
->options
|= op
;
4667 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4669 return ctx
->options
&= ~op
;
4672 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4674 return s
->options
&= ~op
;
4677 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4679 return s
->verified_chain
;
4682 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4684 #ifndef OPENSSL_NO_CT
4687 * Moves SCTs from the |src| stack to the |dst| stack.
4688 * The source of each SCT will be set to |origin|.
4689 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4691 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4693 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4694 sct_source_t origin
)
4700 *dst
= sk_SCT_new_null();
4702 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4707 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4708 if (SCT_set_source(sct
, origin
) != 1)
4711 if (sk_SCT_push(*dst
, sct
) <= 0)
4719 sk_SCT_push(src
, sct
); /* Put the SCT back */
4724 * Look for data collected during ServerHello and parse if found.
4725 * Returns the number of SCTs extracted.
4727 static int ct_extract_tls_extension_scts(SSL
*s
)
4729 int scts_extracted
= 0;
4731 if (s
->ext
.scts
!= NULL
) {
4732 const unsigned char *p
= s
->ext
.scts
;
4733 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4735 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4737 SCT_LIST_free(scts
);
4740 return scts_extracted
;
4744 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4745 * contains an SCT X509 extension. They will be stored in |s->scts|.
4747 * - The number of SCTs extracted, assuming an OCSP response exists.
4748 * - 0 if no OCSP response exists or it contains no SCTs.
4749 * - A negative integer if an error occurs.
4751 static int ct_extract_ocsp_response_scts(SSL
*s
)
4753 # ifndef OPENSSL_NO_OCSP
4754 int scts_extracted
= 0;
4755 const unsigned char *p
;
4756 OCSP_BASICRESP
*br
= NULL
;
4757 OCSP_RESPONSE
*rsp
= NULL
;
4758 STACK_OF(SCT
) *scts
= NULL
;
4761 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4764 p
= s
->ext
.ocsp
.resp
;
4765 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4769 br
= OCSP_response_get1_basic(rsp
);
4773 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4774 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4780 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4782 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4783 if (scts_extracted
< 0)
4787 SCT_LIST_free(scts
);
4788 OCSP_BASICRESP_free(br
);
4789 OCSP_RESPONSE_free(rsp
);
4790 return scts_extracted
;
4792 /* Behave as if no OCSP response exists */
4798 * Attempts to extract SCTs from the peer certificate.
4799 * Return the number of SCTs extracted, or a negative integer if an error
4802 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4804 int scts_extracted
= 0;
4805 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4808 STACK_OF(SCT
) *scts
=
4809 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4812 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4814 SCT_LIST_free(scts
);
4817 return scts_extracted
;
4821 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4822 * response (if it exists) and X509v3 extensions in the certificate.
4823 * Returns NULL if an error occurs.
4825 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4827 if (!s
->scts_parsed
) {
4828 if (ct_extract_tls_extension_scts(s
) < 0 ||
4829 ct_extract_ocsp_response_scts(s
) < 0 ||
4830 ct_extract_x509v3_extension_scts(s
) < 0)
4840 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4841 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4846 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4847 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4849 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4852 for (i
= 0; i
< count
; ++i
) {
4853 SCT
*sct
= sk_SCT_value(scts
, i
);
4854 int status
= SCT_get_validation_status(sct
);
4856 if (status
== SCT_VALIDATION_STATUS_VALID
)
4859 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4863 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4867 * Since code exists that uses the custom extension handler for CT, look
4868 * for this and throw an error if they have already registered to use CT.
4870 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4871 TLSEXT_TYPE_signed_certificate_timestamp
))
4873 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4874 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4878 if (callback
!= NULL
) {
4880 * If we are validating CT, then we MUST accept SCTs served via OCSP
4882 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4886 s
->ct_validation_callback
= callback
;
4887 s
->ct_validation_callback_arg
= arg
;
4892 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4893 ssl_ct_validation_cb callback
, void *arg
)
4896 * Since code exists that uses the custom extension handler for CT, look for
4897 * this and throw an error if they have already registered to use CT.
4899 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4900 TLSEXT_TYPE_signed_certificate_timestamp
))
4902 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4903 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4907 ctx
->ct_validation_callback
= callback
;
4908 ctx
->ct_validation_callback_arg
= arg
;
4912 int SSL_ct_is_enabled(const SSL
*s
)
4914 return s
->ct_validation_callback
!= NULL
;
4917 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4919 return ctx
->ct_validation_callback
!= NULL
;
4922 int ssl_validate_ct(SSL
*s
)
4925 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4927 SSL_DANE
*dane
= &s
->dane
;
4928 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4929 const STACK_OF(SCT
) *scts
;
4932 * If no callback is set, the peer is anonymous, or its chain is invalid,
4933 * skip SCT validation - just return success. Applications that continue
4934 * handshakes without certificates, with unverified chains, or pinned leaf
4935 * certificates are outside the scope of the WebPKI and CT.
4937 * The above exclusions notwithstanding the vast majority of peers will
4938 * have rather ordinary certificate chains validated by typical
4939 * applications that perform certificate verification and therefore will
4940 * process SCTs when enabled.
4942 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4943 s
->verify_result
!= X509_V_OK
||
4944 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4948 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4949 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4951 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4952 switch (dane
->mtlsa
->usage
) {
4953 case DANETLS_USAGE_DANE_TA
:
4954 case DANETLS_USAGE_DANE_EE
:
4959 ctx
= CT_POLICY_EVAL_CTX_new();
4961 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4962 ERR_R_MALLOC_FAILURE
);
4966 issuer
= sk_X509_value(s
->verified_chain
, 1);
4967 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4968 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4969 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4970 CT_POLICY_EVAL_CTX_set_time(
4971 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4973 scts
= SSL_get0_peer_scts(s
);
4976 * This function returns success (> 0) only when all the SCTs are valid, 0
4977 * when some are invalid, and < 0 on various internal errors (out of
4978 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4979 * reason to abort the handshake, that decision is up to the callback.
4980 * Therefore, we error out only in the unexpected case that the return
4981 * value is negative.
4983 * XXX: One might well argue that the return value of this function is an
4984 * unfortunate design choice. Its job is only to determine the validation
4985 * status of each of the provided SCTs. So long as it correctly separates
4986 * the wheat from the chaff it should return success. Failure in this case
4987 * ought to correspond to an inability to carry out its duties.
4989 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4990 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4991 SSL_R_SCT_VERIFICATION_FAILED
);
4995 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4997 ret
= 0; /* This function returns 0 on failure */
4999 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5000 SSL_R_CALLBACK_FAILED
);
5003 CT_POLICY_EVAL_CTX_free(ctx
);
5005 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5006 * failure return code here. Also the application may wish the complete
5007 * the handshake, and then disconnect cleanly at a higher layer, after
5008 * checking the verification status of the completed connection.
5010 * We therefore force a certificate verification failure which will be
5011 * visible via SSL_get_verify_result() and cached as part of any resumed
5014 * Note: the permissive callback is for information gathering only, always
5015 * returns success, and does not affect verification status. Only the
5016 * strict callback or a custom application-specified callback can trigger
5017 * connection failure or record a verification error.
5020 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
5024 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
5026 switch (validation_mode
) {
5028 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5030 case SSL_CT_VALIDATION_PERMISSIVE
:
5031 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
5032 case SSL_CT_VALIDATION_STRICT
:
5033 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
5037 int SSL_enable_ct(SSL
*s
, int validation_mode
)
5039 switch (validation_mode
) {
5041 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5043 case SSL_CT_VALIDATION_PERMISSIVE
:
5044 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
5045 case SSL_CT_VALIDATION_STRICT
:
5046 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
5050 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
5052 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
5055 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
5057 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
5060 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
5062 CTLOG_STORE_free(ctx
->ctlog_store
);
5063 ctx
->ctlog_store
= logs
;
5066 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
5068 return ctx
->ctlog_store
;
5071 #endif /* OPENSSL_NO_CT */
5073 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
5076 c
->client_hello_cb
= cb
;
5077 c
->client_hello_cb_arg
= arg
;
5080 int SSL_client_hello_isv2(SSL
*s
)
5082 if (s
->clienthello
== NULL
)
5084 return s
->clienthello
->isv2
;
5087 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
5089 if (s
->clienthello
== NULL
)
5091 return s
->clienthello
->legacy_version
;
5094 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5096 if (s
->clienthello
== NULL
)
5099 *out
= s
->clienthello
->random
;
5100 return SSL3_RANDOM_SIZE
;
5103 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5105 if (s
->clienthello
== NULL
)
5108 *out
= s
->clienthello
->session_id
;
5109 return s
->clienthello
->session_id_len
;
5112 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5114 if (s
->clienthello
== NULL
)
5117 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5118 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5121 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5123 if (s
->clienthello
== NULL
)
5126 *out
= s
->clienthello
->compressions
;
5127 return s
->clienthello
->compressions_len
;
5130 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5136 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5138 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5139 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5148 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5149 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5150 ERR_R_MALLOC_FAILURE
);
5153 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5154 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5156 if (ext
->received_order
>= num
)
5158 present
[ext
->received_order
] = ext
->type
;
5165 OPENSSL_free(present
);
5169 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5175 if (s
->clienthello
== NULL
)
5177 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5178 r
= s
->clienthello
->pre_proc_exts
+ i
;
5179 if (r
->present
&& r
->type
== type
) {
5181 *out
= PACKET_data(&r
->data
);
5183 *outlen
= PACKET_remaining(&r
->data
);
5190 int SSL_free_buffers(SSL
*ssl
)
5192 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5194 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5197 RECORD_LAYER_release(rl
);
5201 int SSL_alloc_buffers(SSL
*ssl
)
5203 return ssl3_setup_buffers(ssl
);
5206 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5208 ctx
->keylog_callback
= cb
;
5211 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5213 return ctx
->keylog_callback
;
5216 static int nss_keylog_int(const char *prefix
,
5218 const uint8_t *parameter_1
,
5219 size_t parameter_1_len
,
5220 const uint8_t *parameter_2
,
5221 size_t parameter_2_len
)
5224 char *cursor
= NULL
;
5229 if (ssl
->ctx
->keylog_callback
== NULL
)
5233 * Our output buffer will contain the following strings, rendered with
5234 * space characters in between, terminated by a NULL character: first the
5235 * prefix, then the first parameter, then the second parameter. The
5236 * meaning of each parameter depends on the specific key material being
5237 * logged. Note that the first and second parameters are encoded in
5238 * hexadecimal, so we need a buffer that is twice their lengths.
5240 prefix_len
= strlen(prefix
);
5241 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
5242 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5243 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5244 ERR_R_MALLOC_FAILURE
);
5248 strcpy(cursor
, prefix
);
5249 cursor
+= prefix_len
;
5252 for (i
= 0; i
< parameter_1_len
; i
++) {
5253 sprintf(cursor
, "%02x", parameter_1
[i
]);
5258 for (i
= 0; i
< parameter_2_len
; i
++) {
5259 sprintf(cursor
, "%02x", parameter_2
[i
]);
5264 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5265 OPENSSL_clear_free(out
, out_len
);
5270 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5271 const uint8_t *encrypted_premaster
,
5272 size_t encrypted_premaster_len
,
5273 const uint8_t *premaster
,
5274 size_t premaster_len
)
5276 if (encrypted_premaster_len
< 8) {
5277 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5278 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5282 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5283 return nss_keylog_int("RSA",
5285 encrypted_premaster
,
5291 int ssl_log_secret(SSL
*ssl
,
5293 const uint8_t *secret
,
5296 return nss_keylog_int(label
,
5298 ssl
->s3
->client_random
,
5304 #define SSLV2_CIPHER_LEN 3
5306 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5310 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5312 if (PACKET_remaining(cipher_suites
) == 0) {
5313 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5314 SSL_R_NO_CIPHERS_SPECIFIED
);
5318 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5319 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5320 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5324 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5325 s
->s3
->tmp
.ciphers_raw
= NULL
;
5326 s
->s3
->tmp
.ciphers_rawlen
= 0;
5329 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5330 PACKET sslv2ciphers
= *cipher_suites
;
5331 unsigned int leadbyte
;
5335 * We store the raw ciphers list in SSLv3+ format so we need to do some
5336 * preprocessing to convert the list first. If there are any SSLv2 only
5337 * ciphersuites with a non-zero leading byte then we are going to
5338 * slightly over allocate because we won't store those. But that isn't a
5341 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5342 s
->s3
->tmp
.ciphers_raw
= raw
;
5344 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5345 ERR_R_MALLOC_FAILURE
);
5348 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5349 PACKET_remaining(&sslv2ciphers
) > 0;
5350 raw
+= TLS_CIPHER_LEN
) {
5351 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5353 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5356 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5357 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5359 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5360 s
->s3
->tmp
.ciphers_raw
= NULL
;
5361 s
->s3
->tmp
.ciphers_rawlen
= 0;
5365 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5367 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5368 &s
->s3
->tmp
.ciphers_rawlen
)) {
5369 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5370 ERR_R_INTERNAL_ERROR
);
5376 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5377 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5378 STACK_OF(SSL_CIPHER
) **scsvs
)
5382 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5384 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5387 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5388 STACK_OF(SSL_CIPHER
) **skp
,
5389 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5390 int sslv2format
, int fatal
)
5392 const SSL_CIPHER
*c
;
5393 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5394 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5396 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5397 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5399 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5401 if (PACKET_remaining(cipher_suites
) == 0) {
5403 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5404 SSL_R_NO_CIPHERS_SPECIFIED
);
5406 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5410 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5412 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5413 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5415 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5416 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5420 sk
= sk_SSL_CIPHER_new_null();
5421 scsvs
= sk_SSL_CIPHER_new_null();
5422 if (sk
== NULL
|| scsvs
== NULL
) {
5424 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5425 ERR_R_MALLOC_FAILURE
);
5427 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5431 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5433 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5434 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5435 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5437 if (sslv2format
&& cipher
[0] != '\0')
5440 /* For SSLv2-compat, ignore leading 0-byte. */
5441 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5443 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5444 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5446 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5447 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5449 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5454 if (PACKET_remaining(cipher_suites
) > 0) {
5456 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5459 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5466 sk_SSL_CIPHER_free(sk
);
5467 if (scsvs_out
!= NULL
)
5470 sk_SSL_CIPHER_free(scsvs
);
5473 sk_SSL_CIPHER_free(sk
);
5474 sk_SSL_CIPHER_free(scsvs
);
5478 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5480 ctx
->max_early_data
= max_early_data
;
5485 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5487 return ctx
->max_early_data
;
5490 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5492 s
->max_early_data
= max_early_data
;
5497 uint32_t SSL_get_max_early_data(const SSL
*s
)
5499 return s
->max_early_data
;
5502 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5504 ctx
->recv_max_early_data
= recv_max_early_data
;
5509 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5511 return ctx
->recv_max_early_data
;
5514 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5516 s
->recv_max_early_data
= recv_max_early_data
;
5521 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5523 return s
->recv_max_early_data
;
5526 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5528 /* Return any active Max Fragment Len extension */
5529 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5530 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5532 /* return current SSL connection setting */
5533 return ssl
->max_send_fragment
;
5536 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5538 /* Return a value regarding an active Max Fragment Len extension */
5539 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5540 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5541 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5543 /* else limit |split_send_fragment| to current |max_send_fragment| */
5544 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5545 return ssl
->max_send_fragment
;
5547 /* return current SSL connection setting */
5548 return ssl
->split_send_fragment
;
5551 int SSL_stateless(SSL
*s
)
5555 /* Ensure there is no state left over from a previous invocation */
5561 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5562 ret
= SSL_accept(s
);
5563 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5565 if (ret
> 0 && s
->ext
.cookieok
)
5568 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5574 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
5576 ctx
->pha_enabled
= val
;
5579 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
5581 ssl
->pha_enabled
= val
;
5584 int SSL_verify_client_post_handshake(SSL
*ssl
)
5586 if (!SSL_IS_TLS13(ssl
)) {
5587 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5591 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5595 if (!SSL_is_init_finished(ssl
)) {
5596 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5600 switch (ssl
->post_handshake_auth
) {
5602 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5605 case SSL_PHA_EXT_SENT
:
5606 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5608 case SSL_PHA_EXT_RECEIVED
:
5610 case SSL_PHA_REQUEST_PENDING
:
5611 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5613 case SSL_PHA_REQUESTED
:
5614 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5618 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5620 /* checks verify_mode and algorithm_auth */
5621 if (!send_certificate_request(ssl
)) {
5622 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5623 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5627 ossl_statem_set_in_init(ssl
, 1);
5631 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5632 SSL_CTX_generate_session_ticket_fn gen_cb
,
5633 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5636 ctx
->generate_ticket_cb
= gen_cb
;
5637 ctx
->decrypt_ticket_cb
= dec_cb
;
5638 ctx
->ticket_cb_data
= arg
;
5642 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5643 SSL_allow_early_data_cb_fn cb
,
5646 ctx
->allow_early_data_cb
= cb
;
5647 ctx
->allow_early_data_cb_data
= arg
;
5650 void SSL_set_allow_early_data_cb(SSL
*s
,
5651 SSL_allow_early_data_cb_fn cb
,
5654 s
->allow_early_data_cb
= cb
;
5655 s
->allow_early_data_cb_data
= arg
;