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 "internal/cryptlib.h"
24 #include "internal/refcount.h"
25 #include "internal/ktls.h"
27 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
)
32 return ssl_undefined_function(ssl
);
35 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
41 return ssl_undefined_function(ssl
);
44 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
45 unsigned char *s
, size_t t
, size_t *u
)
51 return ssl_undefined_function(ssl
);
54 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
57 return ssl_undefined_function(ssl
);
60 static size_t ssl_undefined_function_5(SSL
*ssl
, const char *r
, size_t s
,
66 return ssl_undefined_function(ssl
);
69 static int ssl_undefined_function_6(int r
)
72 return ssl_undefined_function(NULL
);
75 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
76 const char *t
, size_t u
,
77 const unsigned char *v
, size_t w
, int x
)
86 return ssl_undefined_function(ssl
);
89 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
90 ssl_undefined_function_1
,
91 ssl_undefined_function_2
,
92 ssl_undefined_function
,
93 ssl_undefined_function_3
,
94 ssl_undefined_function_4
,
95 ssl_undefined_function_5
,
96 NULL
, /* client_finished_label */
97 0, /* client_finished_label_len */
98 NULL
, /* server_finished_label */
99 0, /* server_finished_label_len */
100 ssl_undefined_function_6
,
101 ssl_undefined_function_7
,
104 struct ssl_async_args
{
108 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
110 int (*func_read
) (SSL
*, void *, size_t, size_t *);
111 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
112 int (*func_other
) (SSL
*);
116 static const struct {
122 DANETLS_MATCHING_FULL
, 0, NID_undef
125 DANETLS_MATCHING_2256
, 1, NID_sha256
128 DANETLS_MATCHING_2512
, 2, NID_sha512
132 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
134 const EVP_MD
**mdevp
;
136 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
137 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
140 if (dctx
->mdevp
!= NULL
)
143 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
144 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
146 if (mdord
== NULL
|| mdevp
== NULL
) {
149 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
153 /* Install default entries */
154 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
157 if (dane_mds
[i
].nid
== NID_undef
||
158 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
160 mdevp
[dane_mds
[i
].mtype
] = md
;
161 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
171 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
173 OPENSSL_free(dctx
->mdevp
);
176 OPENSSL_free(dctx
->mdord
);
181 static void tlsa_free(danetls_record
*t
)
185 OPENSSL_free(t
->data
);
186 EVP_PKEY_free(t
->spki
);
190 static void dane_final(SSL_DANE
*dane
)
192 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
195 sk_X509_pop_free(dane
->certs
, X509_free
);
198 X509_free(dane
->mcert
);
206 * dane_copy - Copy dane configuration, sans verification state.
208 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
213 if (!DANETLS_ENABLED(&from
->dane
))
216 num
= sk_danetls_record_num(from
->dane
.trecs
);
217 dane_final(&to
->dane
);
218 to
->dane
.flags
= from
->dane
.flags
;
219 to
->dane
.dctx
= &to
->ctx
->dane
;
220 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
222 if (to
->dane
.trecs
== NULL
) {
223 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
227 for (i
= 0; i
< num
; ++i
) {
228 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
230 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
231 t
->data
, t
->dlen
) <= 0)
237 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
238 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
242 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
243 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
247 if (mtype
> dctx
->mdmax
) {
248 const EVP_MD
**mdevp
;
250 int n
= ((int)mtype
) + 1;
252 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
254 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
259 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
261 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
266 /* Zero-fill any gaps */
267 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
275 dctx
->mdevp
[mtype
] = md
;
276 /* Coerce ordinal of disabled matching types to 0 */
277 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
282 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
284 if (mtype
> dane
->dctx
->mdmax
)
286 return dane
->dctx
->mdevp
[mtype
];
289 static int dane_tlsa_add(SSL_DANE
*dane
,
292 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
295 const EVP_MD
*md
= NULL
;
296 int ilen
= (int)dlen
;
300 if (dane
->trecs
== NULL
) {
301 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
305 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
306 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
310 if (usage
> DANETLS_USAGE_LAST
) {
311 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
315 if (selector
> DANETLS_SELECTOR_LAST
) {
316 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
320 if (mtype
!= DANETLS_MATCHING_FULL
) {
321 md
= tlsa_md_get(dane
, mtype
);
323 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
328 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
329 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
333 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
337 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
338 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
343 t
->selector
= selector
;
345 t
->data
= OPENSSL_malloc(dlen
);
346 if (t
->data
== NULL
) {
348 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
351 memcpy(t
->data
, data
, dlen
);
354 /* Validate and cache full certificate or public key */
355 if (mtype
== DANETLS_MATCHING_FULL
) {
356 const unsigned char *p
= data
;
358 EVP_PKEY
*pkey
= NULL
;
361 case DANETLS_SELECTOR_CERT
:
362 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
363 dlen
!= (size_t)(p
- data
)) {
365 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
368 if (X509_get0_pubkey(cert
) == NULL
) {
370 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
374 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
380 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
381 * records that contain full certificates of trust-anchors that are
382 * not present in the wire chain. For usage PKIX-TA(0), we augment
383 * the chain with untrusted Full(0) certificates from DNS, in case
384 * they are missing from the chain.
386 if ((dane
->certs
== NULL
&&
387 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
388 !sk_X509_push(dane
->certs
, cert
)) {
389 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
396 case DANETLS_SELECTOR_SPKI
:
397 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
398 dlen
!= (size_t)(p
- data
)) {
400 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
405 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
406 * records that contain full bare keys of trust-anchors that are
407 * not present in the wire chain.
409 if (usage
== DANETLS_USAGE_DANE_TA
)
418 * Find the right insertion point for the new record.
420 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
421 * they can be processed first, as they require no chain building, and no
422 * expiration or hostname checks. Because DANE-EE(3) is numerically
423 * largest, this is accomplished via descending sort by "usage".
425 * We also sort in descending order by matching ordinal to simplify
426 * the implementation of digest agility in the verification code.
428 * The choice of order for the selector is not significant, so we
429 * use the same descending order for consistency.
431 num
= sk_danetls_record_num(dane
->trecs
);
432 for (i
= 0; i
< num
; ++i
) {
433 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
435 if (rec
->usage
> usage
)
437 if (rec
->usage
< usage
)
439 if (rec
->selector
> selector
)
441 if (rec
->selector
< selector
)
443 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
448 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
450 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
453 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
459 * Return 0 if there is only one version configured and it was disabled
460 * at configure time. Return 1 otherwise.
462 static int ssl_check_allowed_versions(int min_version
, int max_version
)
464 int minisdtls
= 0, maxisdtls
= 0;
466 /* Figure out if we're doing DTLS versions or TLS versions */
467 if (min_version
== DTLS1_BAD_VER
468 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
470 if (max_version
== DTLS1_BAD_VER
471 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
473 /* A wildcard version of 0 could be DTLS or TLS. */
474 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
475 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
476 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
480 if (minisdtls
|| maxisdtls
) {
481 /* Do DTLS version checks. */
482 if (min_version
== 0)
483 /* Ignore DTLS1_BAD_VER */
484 min_version
= DTLS1_VERSION
;
485 if (max_version
== 0)
486 max_version
= DTLS1_2_VERSION
;
487 #ifdef OPENSSL_NO_DTLS1_2
488 if (max_version
== DTLS1_2_VERSION
)
489 max_version
= DTLS1_VERSION
;
491 #ifdef OPENSSL_NO_DTLS1
492 if (min_version
== DTLS1_VERSION
)
493 min_version
= DTLS1_2_VERSION
;
495 /* Done massaging versions; do the check. */
497 #ifdef OPENSSL_NO_DTLS1
498 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
499 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
501 #ifdef OPENSSL_NO_DTLS1_2
502 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
503 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
508 /* Regular TLS version checks. */
509 if (min_version
== 0)
510 min_version
= SSL3_VERSION
;
511 if (max_version
== 0)
512 max_version
= TLS1_3_VERSION
;
513 #ifdef OPENSSL_NO_TLS1_3
514 if (max_version
== TLS1_3_VERSION
)
515 max_version
= TLS1_2_VERSION
;
517 #ifdef OPENSSL_NO_TLS1_2
518 if (max_version
== TLS1_2_VERSION
)
519 max_version
= TLS1_1_VERSION
;
521 #ifdef OPENSSL_NO_TLS1_1
522 if (max_version
== TLS1_1_VERSION
)
523 max_version
= TLS1_VERSION
;
525 #ifdef OPENSSL_NO_TLS1
526 if (max_version
== TLS1_VERSION
)
527 max_version
= SSL3_VERSION
;
529 #ifdef OPENSSL_NO_SSL3
530 if (min_version
== SSL3_VERSION
)
531 min_version
= TLS1_VERSION
;
533 #ifdef OPENSSL_NO_TLS1
534 if (min_version
== TLS1_VERSION
)
535 min_version
= TLS1_1_VERSION
;
537 #ifdef OPENSSL_NO_TLS1_1
538 if (min_version
== TLS1_1_VERSION
)
539 min_version
= TLS1_2_VERSION
;
541 #ifdef OPENSSL_NO_TLS1_2
542 if (min_version
== TLS1_2_VERSION
)
543 min_version
= TLS1_3_VERSION
;
545 /* Done massaging versions; do the check. */
547 #ifdef OPENSSL_NO_SSL3
548 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
550 #ifdef OPENSSL_NO_TLS1
551 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
553 #ifdef OPENSSL_NO_TLS1_1
554 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
556 #ifdef OPENSSL_NO_TLS1_2
557 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
559 #ifdef OPENSSL_NO_TLS1_3
560 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
568 static void clear_ciphers(SSL
*s
)
570 /* clear the current cipher */
571 ssl_clear_cipher_ctx(s
);
572 ssl_clear_hash_ctx(&s
->read_hash
);
573 ssl_clear_hash_ctx(&s
->write_hash
);
576 int SSL_clear(SSL
*s
)
578 if (s
->method
== NULL
) {
579 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
583 if (ssl_clear_bad_session(s
)) {
584 SSL_SESSION_free(s
->session
);
587 SSL_SESSION_free(s
->psksession
);
588 s
->psksession
= NULL
;
589 OPENSSL_free(s
->psksession_id
);
590 s
->psksession_id
= NULL
;
591 s
->psksession_id_len
= 0;
592 s
->hello_retry_request
= 0;
599 if (s
->renegotiate
) {
600 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
604 ossl_statem_clear(s
);
606 s
->version
= s
->method
->version
;
607 s
->client_version
= s
->version
;
608 s
->rwstate
= SSL_NOTHING
;
610 BUF_MEM_free(s
->init_buf
);
615 s
->key_update
= SSL_KEY_UPDATE_NONE
;
617 EVP_MD_CTX_free(s
->pha_dgst
);
620 /* Reset DANE verification result state */
623 X509_free(s
->dane
.mcert
);
624 s
->dane
.mcert
= NULL
;
625 s
->dane
.mtlsa
= NULL
;
627 /* Clear the verification result peername */
628 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
631 * Check to see if we were changed into a different method, if so, revert
634 if (s
->method
!= s
->ctx
->method
) {
635 s
->method
->ssl_free(s
);
636 s
->method
= s
->ctx
->method
;
637 if (!s
->method
->ssl_new(s
))
640 if (!s
->method
->ssl_clear(s
))
644 RECORD_LAYER_clear(&s
->rlayer
);
649 /** Used to change an SSL_CTXs default SSL method type */
650 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
652 STACK_OF(SSL_CIPHER
) *sk
;
656 if (!SSL_CTX_set_ciphersuites(ctx
, TLS_DEFAULT_CIPHERSUITES
)) {
657 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
660 sk
= ssl_create_cipher_list(ctx
->method
,
661 ctx
->tls13_ciphersuites
,
663 &(ctx
->cipher_list_by_id
),
664 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
665 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
666 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
672 SSL
*SSL_new(SSL_CTX
*ctx
)
677 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
680 if (ctx
->method
== NULL
) {
681 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
685 s
= OPENSSL_zalloc(sizeof(*s
));
690 s
->lock
= CRYPTO_THREAD_lock_new();
691 if (s
->lock
== NULL
) {
697 RECORD_LAYER_init(&s
->rlayer
, s
);
699 s
->options
= ctx
->options
;
700 s
->dane
.flags
= ctx
->dane
.flags
;
701 s
->min_proto_version
= ctx
->min_proto_version
;
702 s
->max_proto_version
= ctx
->max_proto_version
;
704 s
->max_cert_list
= ctx
->max_cert_list
;
705 s
->max_early_data
= ctx
->max_early_data
;
706 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
707 s
->num_tickets
= ctx
->num_tickets
;
708 s
->pha_enabled
= ctx
->pha_enabled
;
710 /* Shallow copy of the ciphersuites stack */
711 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
712 if (s
->tls13_ciphersuites
== NULL
)
716 * Earlier library versions used to copy the pointer to the CERT, not
717 * its contents; only when setting new parameters for the per-SSL
718 * copy, ssl_cert_new would be called (and the direct reference to
719 * the per-SSL_CTX settings would be lost, but those still were
720 * indirectly accessed for various purposes, and for that reason they
721 * used to be known as s->ctx->default_cert). Now we don't look at the
722 * SSL_CTX's CERT after having duplicated it once.
724 s
->cert
= ssl_cert_dup(ctx
->cert
);
728 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
729 s
->msg_callback
= ctx
->msg_callback
;
730 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
731 s
->verify_mode
= ctx
->verify_mode
;
732 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
733 s
->record_padding_cb
= ctx
->record_padding_cb
;
734 s
->record_padding_arg
= ctx
->record_padding_arg
;
735 s
->block_padding
= ctx
->block_padding
;
736 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
737 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
739 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
740 s
->verify_callback
= ctx
->default_verify_callback
;
741 s
->generate_session_id
= ctx
->generate_session_id
;
743 s
->param
= X509_VERIFY_PARAM_new();
744 if (s
->param
== NULL
)
746 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
747 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
749 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
750 s
->max_send_fragment
= ctx
->max_send_fragment
;
751 s
->split_send_fragment
= ctx
->split_send_fragment
;
752 s
->max_pipelines
= ctx
->max_pipelines
;
753 if (s
->max_pipelines
> 1)
754 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
755 if (ctx
->default_read_buf_len
> 0)
756 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
761 s
->ext
.debug_arg
= NULL
;
762 s
->ext
.ticket_expected
= 0;
763 s
->ext
.status_type
= ctx
->ext
.status_type
;
764 s
->ext
.status_expected
= 0;
765 s
->ext
.ocsp
.ids
= NULL
;
766 s
->ext
.ocsp
.exts
= NULL
;
767 s
->ext
.ocsp
.resp
= NULL
;
768 s
->ext
.ocsp
.resp_len
= 0;
770 s
->session_ctx
= ctx
;
771 #ifndef OPENSSL_NO_EC
772 if (ctx
->ext
.ecpointformats
) {
773 s
->ext
.ecpointformats
=
774 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
775 ctx
->ext
.ecpointformats_len
);
776 if (!s
->ext
.ecpointformats
)
778 s
->ext
.ecpointformats_len
=
779 ctx
->ext
.ecpointformats_len
;
781 if (ctx
->ext
.supportedgroups
) {
782 s
->ext
.supportedgroups
=
783 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
784 ctx
->ext
.supportedgroups_len
785 * sizeof(*ctx
->ext
.supportedgroups
));
786 if (!s
->ext
.supportedgroups
)
788 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
791 #ifndef OPENSSL_NO_NEXTPROTONEG
795 if (s
->ctx
->ext
.alpn
) {
796 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
797 if (s
->ext
.alpn
== NULL
)
799 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
800 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
803 s
->verified_chain
= NULL
;
804 s
->verify_result
= X509_V_OK
;
806 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
807 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
809 s
->method
= ctx
->method
;
811 s
->key_update
= SSL_KEY_UPDATE_NONE
;
813 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
814 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
816 if (!s
->method
->ssl_new(s
))
819 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
824 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
827 #ifndef OPENSSL_NO_PSK
828 s
->psk_client_callback
= ctx
->psk_client_callback
;
829 s
->psk_server_callback
= ctx
->psk_server_callback
;
831 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
832 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
834 s
->async_cb
= ctx
->async_cb
;
835 s
->async_cb_arg
= ctx
->async_cb_arg
;
839 #ifndef OPENSSL_NO_CT
840 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
841 ctx
->ct_validation_callback_arg
))
848 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
852 int SSL_is_dtls(const SSL
*s
)
854 return SSL_IS_DTLS(s
) ? 1 : 0;
857 int SSL_up_ref(SSL
*s
)
861 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
864 REF_PRINT_COUNT("SSL", s
);
865 REF_ASSERT_ISNT(i
< 2);
866 return ((i
> 1) ? 1 : 0);
869 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
870 unsigned int sid_ctx_len
)
872 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
873 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
874 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
877 ctx
->sid_ctx_length
= sid_ctx_len
;
878 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
883 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
884 unsigned int sid_ctx_len
)
886 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
887 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
888 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
891 ssl
->sid_ctx_length
= sid_ctx_len
;
892 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
897 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
899 CRYPTO_THREAD_write_lock(ctx
->lock
);
900 ctx
->generate_session_id
= cb
;
901 CRYPTO_THREAD_unlock(ctx
->lock
);
905 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
907 CRYPTO_THREAD_write_lock(ssl
->lock
);
908 ssl
->generate_session_id
= cb
;
909 CRYPTO_THREAD_unlock(ssl
->lock
);
913 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
917 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
918 * we can "construct" a session to give us the desired check - i.e. to
919 * find if there's a session in the hash table that would conflict with
920 * any new session built out of this id/id_len and the ssl_version in use
925 if (id_len
> sizeof(r
.session_id
))
928 r
.ssl_version
= ssl
->version
;
929 r
.session_id_length
= id_len
;
930 memcpy(r
.session_id
, id
, id_len
);
932 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
933 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
934 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
938 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
940 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
943 int SSL_set_purpose(SSL
*s
, int purpose
)
945 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
948 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
950 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
953 int SSL_set_trust(SSL
*s
, int trust
)
955 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
958 int SSL_set1_host(SSL
*s
, const char *hostname
)
960 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
963 int SSL_add1_host(SSL
*s
, const char *hostname
)
965 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
968 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
970 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
973 const char *SSL_get0_peername(SSL
*s
)
975 return X509_VERIFY_PARAM_get0_peername(s
->param
);
978 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
980 return dane_ctx_enable(&ctx
->dane
);
983 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
985 unsigned long orig
= ctx
->dane
.flags
;
987 ctx
->dane
.flags
|= flags
;
991 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
993 unsigned long orig
= ctx
->dane
.flags
;
995 ctx
->dane
.flags
&= ~flags
;
999 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1001 SSL_DANE
*dane
= &s
->dane
;
1003 if (s
->ctx
->dane
.mdmax
== 0) {
1004 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1007 if (dane
->trecs
!= NULL
) {
1008 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1013 * Default SNI name. This rejects empty names, while set1_host below
1014 * accepts them and disables host name checks. To avoid side-effects with
1015 * invalid input, set the SNI name first.
1017 if (s
->ext
.hostname
== NULL
) {
1018 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1019 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1024 /* Primary RFC6125 reference identifier */
1025 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1026 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1032 dane
->dctx
= &s
->ctx
->dane
;
1033 dane
->trecs
= sk_danetls_record_new_null();
1035 if (dane
->trecs
== NULL
) {
1036 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1042 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1044 unsigned long orig
= ssl
->dane
.flags
;
1046 ssl
->dane
.flags
|= flags
;
1050 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1052 unsigned long orig
= ssl
->dane
.flags
;
1054 ssl
->dane
.flags
&= ~flags
;
1058 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1060 SSL_DANE
*dane
= &s
->dane
;
1062 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1066 *mcert
= dane
->mcert
;
1068 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1073 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1074 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1076 SSL_DANE
*dane
= &s
->dane
;
1078 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1082 *usage
= dane
->mtlsa
->usage
;
1084 *selector
= dane
->mtlsa
->selector
;
1086 *mtype
= dane
->mtlsa
->mtype
;
1088 *data
= dane
->mtlsa
->data
;
1090 *dlen
= dane
->mtlsa
->dlen
;
1095 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1100 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1101 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1103 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1106 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1109 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1112 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1114 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1117 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1119 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1122 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1127 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1132 void SSL_certs_clear(SSL
*s
)
1134 ssl_cert_clear_certs(s
->cert
);
1137 void SSL_free(SSL
*s
)
1143 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1144 REF_PRINT_COUNT("SSL", s
);
1147 REF_ASSERT_ISNT(i
< 0);
1149 X509_VERIFY_PARAM_free(s
->param
);
1150 dane_final(&s
->dane
);
1151 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1153 RECORD_LAYER_release(&s
->rlayer
);
1155 /* Ignore return value */
1156 ssl_free_wbio_buffer(s
);
1158 BIO_free_all(s
->wbio
);
1160 BIO_free_all(s
->rbio
);
1163 BUF_MEM_free(s
->init_buf
);
1165 /* add extra stuff */
1166 sk_SSL_CIPHER_free(s
->cipher_list
);
1167 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1168 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1170 /* Make the next call work :-) */
1171 if (s
->session
!= NULL
) {
1172 ssl_clear_bad_session(s
);
1173 SSL_SESSION_free(s
->session
);
1175 SSL_SESSION_free(s
->psksession
);
1176 OPENSSL_free(s
->psksession_id
);
1180 ssl_cert_free(s
->cert
);
1181 /* Free up if allocated */
1183 OPENSSL_free(s
->ext
.hostname
);
1184 SSL_CTX_free(s
->session_ctx
);
1185 #ifndef OPENSSL_NO_EC
1186 OPENSSL_free(s
->ext
.ecpointformats
);
1187 OPENSSL_free(s
->ext
.supportedgroups
);
1188 #endif /* OPENSSL_NO_EC */
1189 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1190 #ifndef OPENSSL_NO_OCSP
1191 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1193 #ifndef OPENSSL_NO_CT
1194 SCT_LIST_free(s
->scts
);
1195 OPENSSL_free(s
->ext
.scts
);
1197 OPENSSL_free(s
->ext
.ocsp
.resp
);
1198 OPENSSL_free(s
->ext
.alpn
);
1199 OPENSSL_free(s
->ext
.tls13_cookie
);
1200 OPENSSL_free(s
->clienthello
);
1201 OPENSSL_free(s
->pha_context
);
1202 EVP_MD_CTX_free(s
->pha_dgst
);
1204 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1205 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1207 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1209 if (s
->method
!= NULL
)
1210 s
->method
->ssl_free(s
);
1212 SSL_CTX_free(s
->ctx
);
1214 ASYNC_WAIT_CTX_free(s
->waitctx
);
1216 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1217 OPENSSL_free(s
->ext
.npn
);
1220 #ifndef OPENSSL_NO_SRTP
1221 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1224 CRYPTO_THREAD_lock_free(s
->lock
);
1229 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1231 BIO_free_all(s
->rbio
);
1235 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1238 * If the output buffering BIO is still in place, remove it
1240 if (s
->bbio
!= NULL
)
1241 s
->wbio
= BIO_pop(s
->wbio
);
1243 BIO_free_all(s
->wbio
);
1246 /* Re-attach |bbio| to the new |wbio|. */
1247 if (s
->bbio
!= NULL
)
1248 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1251 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1254 * For historical reasons, this function has many different cases in
1255 * ownership handling.
1258 /* If nothing has changed, do nothing */
1259 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1263 * If the two arguments are equal then one fewer reference is granted by the
1264 * caller than we want to take
1266 if (rbio
!= NULL
&& rbio
== wbio
)
1270 * If only the wbio is changed only adopt one reference.
1272 if (rbio
== SSL_get_rbio(s
)) {
1273 SSL_set0_wbio(s
, wbio
);
1277 * There is an asymmetry here for historical reasons. If only the rbio is
1278 * changed AND the rbio and wbio were originally different, then we only
1279 * adopt one reference.
1281 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1282 SSL_set0_rbio(s
, rbio
);
1286 /* Otherwise, adopt both references. */
1287 SSL_set0_rbio(s
, rbio
);
1288 SSL_set0_wbio(s
, wbio
);
1291 BIO
*SSL_get_rbio(const SSL
*s
)
1296 BIO
*SSL_get_wbio(const SSL
*s
)
1298 if (s
->bbio
!= NULL
) {
1300 * If |bbio| is active, the true caller-configured BIO is its
1303 return BIO_next(s
->bbio
);
1308 int SSL_get_fd(const SSL
*s
)
1310 return SSL_get_rfd(s
);
1313 int SSL_get_rfd(const SSL
*s
)
1318 b
= SSL_get_rbio(s
);
1319 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1321 BIO_get_fd(r
, &ret
);
1325 int SSL_get_wfd(const SSL
*s
)
1330 b
= SSL_get_wbio(s
);
1331 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1333 BIO_get_fd(r
, &ret
);
1337 #ifndef OPENSSL_NO_SOCK
1338 int SSL_set_fd(SSL
*s
, int fd
)
1343 bio
= BIO_new(BIO_s_socket());
1346 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1349 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1350 SSL_set_bio(s
, bio
, bio
);
1351 #ifndef OPENSSL_NO_KTLS
1353 * The new socket is created successfully regardless of ktls_enable.
1354 * ktls_enable doesn't change any functionality of the socket, except
1355 * changing the setsockopt to enable the processing of ktls_start.
1356 * Thus, it is not a problem to call it for non-TLS sockets.
1359 #endif /* OPENSSL_NO_KTLS */
1365 int SSL_set_wfd(SSL
*s
, int fd
)
1367 BIO
*rbio
= SSL_get_rbio(s
);
1369 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1370 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1371 BIO
*bio
= BIO_new(BIO_s_socket());
1374 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1377 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1378 SSL_set0_wbio(s
, bio
);
1379 #ifndef OPENSSL_NO_KTLS
1381 * The new socket is created successfully regardless of ktls_enable.
1382 * ktls_enable doesn't change any functionality of the socket, except
1383 * changing the setsockopt to enable the processing of ktls_start.
1384 * Thus, it is not a problem to call it for non-TLS sockets.
1387 #endif /* OPENSSL_NO_KTLS */
1390 SSL_set0_wbio(s
, rbio
);
1395 int SSL_set_rfd(SSL
*s
, int fd
)
1397 BIO
*wbio
= SSL_get_wbio(s
);
1399 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1400 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1401 BIO
*bio
= BIO_new(BIO_s_socket());
1404 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1407 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1408 SSL_set0_rbio(s
, bio
);
1411 SSL_set0_rbio(s
, wbio
);
1418 /* return length of latest Finished message we sent, copy to 'buf' */
1419 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1423 if (s
->s3
!= NULL
) {
1424 ret
= s
->s3
->tmp
.finish_md_len
;
1427 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1432 /* return length of latest Finished message we expected, copy to 'buf' */
1433 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1437 if (s
->s3
!= NULL
) {
1438 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1441 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1446 int SSL_get_verify_mode(const SSL
*s
)
1448 return s
->verify_mode
;
1451 int SSL_get_verify_depth(const SSL
*s
)
1453 return X509_VERIFY_PARAM_get_depth(s
->param
);
1456 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1457 return s
->verify_callback
;
1460 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1462 return ctx
->verify_mode
;
1465 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1467 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1470 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1471 return ctx
->default_verify_callback
;
1474 void SSL_set_verify(SSL
*s
, int mode
,
1475 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1477 s
->verify_mode
= mode
;
1478 if (callback
!= NULL
)
1479 s
->verify_callback
= callback
;
1482 void SSL_set_verify_depth(SSL
*s
, int depth
)
1484 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1487 void SSL_set_read_ahead(SSL
*s
, int yes
)
1489 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1492 int SSL_get_read_ahead(const SSL
*s
)
1494 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1497 int SSL_pending(const SSL
*s
)
1499 size_t pending
= s
->method
->ssl_pending(s
);
1502 * SSL_pending cannot work properly if read-ahead is enabled
1503 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1504 * impossible to fix since SSL_pending cannot report errors that may be
1505 * observed while scanning the new data. (Note that SSL_pending() is
1506 * often used as a boolean value, so we'd better not return -1.)
1508 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1509 * we just return INT_MAX.
1511 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1514 int SSL_has_pending(const SSL
*s
)
1517 * Similar to SSL_pending() but returns a 1 to indicate that we have
1518 * unprocessed data available or 0 otherwise (as opposed to the number of
1519 * bytes available). Unlike SSL_pending() this will take into account
1520 * read_ahead data. A 1 return simply indicates that we have unprocessed
1521 * data. That data may not result in any application data, or we may fail
1522 * to parse the records for some reason.
1524 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1527 return RECORD_LAYER_read_pending(&s
->rlayer
);
1530 X509
*SSL_get_peer_certificate(const SSL
*s
)
1534 if ((s
== NULL
) || (s
->session
== NULL
))
1537 r
= s
->session
->peer
;
1547 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1551 if ((s
== NULL
) || (s
->session
== NULL
))
1554 r
= s
->session
->peer_chain
;
1557 * If we are a client, cert_chain includes the peer's own certificate; if
1558 * we are a server, it does not.
1565 * Now in theory, since the calling process own 't' it should be safe to
1566 * modify. We need to be able to read f without being hassled
1568 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1571 /* Do we need to to SSL locking? */
1572 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1577 * what if we are setup for one protocol version but want to talk another
1579 if (t
->method
!= f
->method
) {
1580 t
->method
->ssl_free(t
);
1581 t
->method
= f
->method
;
1582 if (t
->method
->ssl_new(t
) == 0)
1586 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1587 ssl_cert_free(t
->cert
);
1589 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1596 /* Fix this so it checks all the valid key/cert options */
1597 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1599 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1600 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1603 if (ctx
->cert
->key
->privatekey
== NULL
) {
1604 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1607 return X509_check_private_key
1608 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1611 /* Fix this function so that it takes an optional type parameter */
1612 int SSL_check_private_key(const SSL
*ssl
)
1615 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1618 if (ssl
->cert
->key
->x509
== NULL
) {
1619 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1622 if (ssl
->cert
->key
->privatekey
== NULL
) {
1623 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1626 return X509_check_private_key(ssl
->cert
->key
->x509
,
1627 ssl
->cert
->key
->privatekey
);
1630 int SSL_waiting_for_async(SSL
*s
)
1638 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1640 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1644 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1647 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1648 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1650 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1654 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1658 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1660 ctx
->async_cb
= callback
;
1664 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1666 ctx
->async_cb_arg
= arg
;
1670 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1672 s
->async_cb
= callback
;
1676 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1678 s
->async_cb_arg
= arg
;
1682 int SSL_get_async_status(SSL
*s
, int *status
)
1684 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1688 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
1692 int SSL_accept(SSL
*s
)
1694 if (s
->handshake_func
== NULL
) {
1695 /* Not properly initialized yet */
1696 SSL_set_accept_state(s
);
1699 return SSL_do_handshake(s
);
1702 int SSL_connect(SSL
*s
)
1704 if (s
->handshake_func
== NULL
) {
1705 /* Not properly initialized yet */
1706 SSL_set_connect_state(s
);
1709 return SSL_do_handshake(s
);
1712 long SSL_get_default_timeout(const SSL
*s
)
1714 return s
->method
->get_timeout();
1717 static int ssl_async_wait_ctx_cb(void *arg
)
1719 SSL
*s
= (SSL
*)arg
;
1721 return s
->async_cb(s
, s
->async_cb_arg
);
1724 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1725 int (*func
) (void *))
1728 if (s
->waitctx
== NULL
) {
1729 s
->waitctx
= ASYNC_WAIT_CTX_new();
1730 if (s
->waitctx
== NULL
)
1732 if (s
->async_cb
!= NULL
1733 && !ASYNC_WAIT_CTX_set_callback
1734 (s
->waitctx
, ssl_async_wait_ctx_cb
, s
))
1737 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1738 sizeof(struct ssl_async_args
))) {
1740 s
->rwstate
= SSL_NOTHING
;
1741 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1744 s
->rwstate
= SSL_ASYNC_PAUSED
;
1747 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1753 s
->rwstate
= SSL_NOTHING
;
1754 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1755 /* Shouldn't happen */
1760 static int ssl_io_intern(void *vargs
)
1762 struct ssl_async_args
*args
;
1767 args
= (struct ssl_async_args
*)vargs
;
1771 switch (args
->type
) {
1773 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1775 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1777 return args
->f
.func_other(s
);
1782 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1784 if (s
->handshake_func
== NULL
) {
1785 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1789 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1790 s
->rwstate
= SSL_NOTHING
;
1794 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1795 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1796 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1800 * If we are a client and haven't received the ServerHello etc then we
1803 ossl_statem_check_finish_init(s
, 0);
1805 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1806 struct ssl_async_args args
;
1812 args
.type
= READFUNC
;
1813 args
.f
.func_read
= s
->method
->ssl_read
;
1815 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1816 *readbytes
= s
->asyncrw
;
1819 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1823 int SSL_read(SSL
*s
, void *buf
, int num
)
1829 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1833 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1836 * The cast is safe here because ret should be <= INT_MAX because num is
1840 ret
= (int)readbytes
;
1845 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1847 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1854 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1859 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1860 return SSL_READ_EARLY_DATA_ERROR
;
1863 switch (s
->early_data_state
) {
1864 case SSL_EARLY_DATA_NONE
:
1865 if (!SSL_in_before(s
)) {
1866 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1867 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1868 return SSL_READ_EARLY_DATA_ERROR
;
1872 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1873 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1874 ret
= SSL_accept(s
);
1877 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1878 return SSL_READ_EARLY_DATA_ERROR
;
1882 case SSL_EARLY_DATA_READ_RETRY
:
1883 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1884 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1885 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1887 * State machine will update early_data_state to
1888 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1891 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1892 != SSL_EARLY_DATA_FINISHED_READING
)) {
1893 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1894 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1895 : SSL_READ_EARLY_DATA_ERROR
;
1898 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1901 return SSL_READ_EARLY_DATA_FINISH
;
1904 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1905 return SSL_READ_EARLY_DATA_ERROR
;
1909 int SSL_get_early_data_status(const SSL
*s
)
1911 return s
->ext
.early_data
;
1914 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1916 if (s
->handshake_func
== NULL
) {
1917 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1921 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1924 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1925 struct ssl_async_args args
;
1931 args
.type
= READFUNC
;
1932 args
.f
.func_read
= s
->method
->ssl_peek
;
1934 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1935 *readbytes
= s
->asyncrw
;
1938 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1942 int SSL_peek(SSL
*s
, void *buf
, int num
)
1948 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1952 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1955 * The cast is safe here because ret should be <= INT_MAX because num is
1959 ret
= (int)readbytes
;
1965 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1967 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1974 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1976 if (s
->handshake_func
== NULL
) {
1977 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1981 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1982 s
->rwstate
= SSL_NOTHING
;
1983 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1987 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1988 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1989 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1990 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1993 /* If we are a client and haven't sent the Finished we better do that */
1994 ossl_statem_check_finish_init(s
, 1);
1996 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1998 struct ssl_async_args args
;
2001 args
.buf
= (void *)buf
;
2003 args
.type
= WRITEFUNC
;
2004 args
.f
.func_write
= s
->method
->ssl_write
;
2006 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2007 *written
= s
->asyncrw
;
2010 return s
->method
->ssl_write(s
, buf
, num
, written
);
2014 int SSL_write(SSL
*s
, const void *buf
, int num
)
2020 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
2024 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2027 * The cast is safe here because ret should be <= INT_MAX because num is
2036 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2038 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2045 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2047 int ret
, early_data_state
;
2049 uint32_t partialwrite
;
2051 switch (s
->early_data_state
) {
2052 case SSL_EARLY_DATA_NONE
:
2054 || !SSL_in_before(s
)
2055 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
2056 && (s
->psk_use_session_cb
== NULL
))) {
2057 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
2058 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2063 case SSL_EARLY_DATA_CONNECT_RETRY
:
2064 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2065 ret
= SSL_connect(s
);
2068 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2073 case SSL_EARLY_DATA_WRITE_RETRY
:
2074 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2076 * We disable partial write for early data because we don't keep track
2077 * of how many bytes we've written between the SSL_write_ex() call and
2078 * the flush if the flush needs to be retried)
2080 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2081 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2082 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2083 s
->mode
|= partialwrite
;
2085 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2088 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2091 case SSL_EARLY_DATA_WRITE_FLUSH
:
2092 /* The buffering BIO is still in place so we need to flush it */
2093 if (statem_flush(s
) != 1)
2096 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2099 case SSL_EARLY_DATA_FINISHED_READING
:
2100 case SSL_EARLY_DATA_READ_RETRY
:
2101 early_data_state
= s
->early_data_state
;
2102 /* We are a server writing to an unauthenticated client */
2103 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2104 ret
= SSL_write_ex(s
, buf
, num
, written
);
2105 /* The buffering BIO is still in place */
2107 (void)BIO_flush(s
->wbio
);
2108 s
->early_data_state
= early_data_state
;
2112 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2117 int SSL_shutdown(SSL
*s
)
2120 * Note that this function behaves differently from what one might
2121 * expect. Return values are 0 for no success (yet), 1 for success; but
2122 * calling it once is usually not enough, even if blocking I/O is used
2123 * (see ssl3_shutdown).
2126 if (s
->handshake_func
== NULL
) {
2127 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2131 if (!SSL_in_init(s
)) {
2132 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2133 struct ssl_async_args args
;
2136 args
.type
= OTHERFUNC
;
2137 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2139 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2141 return s
->method
->ssl_shutdown(s
);
2144 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2149 int SSL_key_update(SSL
*s
, int updatetype
)
2152 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2153 * negotiated, and that it is appropriate to call SSL_key_update() instead
2154 * of SSL_renegotiate().
2156 if (!SSL_IS_TLS13(s
)) {
2157 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2161 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2162 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2163 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2167 if (!SSL_is_init_finished(s
)) {
2168 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2172 ossl_statem_set_in_init(s
, 1);
2173 s
->key_update
= updatetype
;
2177 int SSL_get_key_update_type(const SSL
*s
)
2179 return s
->key_update
;
2182 int SSL_renegotiate(SSL
*s
)
2184 if (SSL_IS_TLS13(s
)) {
2185 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2189 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2190 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2197 return s
->method
->ssl_renegotiate(s
);
2200 int SSL_renegotiate_abbreviated(SSL
*s
)
2202 if (SSL_IS_TLS13(s
)) {
2203 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2207 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2208 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2215 return s
->method
->ssl_renegotiate(s
);
2218 int SSL_renegotiate_pending(const SSL
*s
)
2221 * becomes true when negotiation is requested; false again once a
2222 * handshake has finished
2224 return (s
->renegotiate
!= 0);
2227 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2232 case SSL_CTRL_GET_READ_AHEAD
:
2233 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2234 case SSL_CTRL_SET_READ_AHEAD
:
2235 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2236 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2239 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2240 s
->msg_callback_arg
= parg
;
2244 return (s
->mode
|= larg
);
2245 case SSL_CTRL_CLEAR_MODE
:
2246 return (s
->mode
&= ~larg
);
2247 case SSL_CTRL_GET_MAX_CERT_LIST
:
2248 return (long)s
->max_cert_list
;
2249 case SSL_CTRL_SET_MAX_CERT_LIST
:
2252 l
= (long)s
->max_cert_list
;
2253 s
->max_cert_list
= (size_t)larg
;
2255 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2256 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2258 #ifndef OPENSSL_NO_KTLS
2259 if (s
->wbio
!= NULL
&& BIO_get_ktls_send(s
->wbio
))
2261 #endif /* OPENSSL_NO_KTLS */
2262 s
->max_send_fragment
= larg
;
2263 if (s
->max_send_fragment
< s
->split_send_fragment
)
2264 s
->split_send_fragment
= s
->max_send_fragment
;
2266 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2267 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2269 s
->split_send_fragment
= larg
;
2271 case SSL_CTRL_SET_MAX_PIPELINES
:
2272 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2274 s
->max_pipelines
= larg
;
2276 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2278 case SSL_CTRL_GET_RI_SUPPORT
:
2280 return s
->s3
->send_connection_binding
;
2283 case SSL_CTRL_CERT_FLAGS
:
2284 return (s
->cert
->cert_flags
|= larg
);
2285 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2286 return (s
->cert
->cert_flags
&= ~larg
);
2288 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2290 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2292 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2293 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2295 return TLS_CIPHER_LEN
;
2297 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2298 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2300 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2304 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2305 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2306 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2307 &s
->min_proto_version
);
2308 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2309 return s
->min_proto_version
;
2310 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2311 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2312 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2313 &s
->max_proto_version
);
2314 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2315 return s
->max_proto_version
;
2317 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2321 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2324 case SSL_CTRL_SET_MSG_CALLBACK
:
2325 s
->msg_callback
= (void (*)
2326 (int write_p
, int version
, int content_type
,
2327 const void *buf
, size_t len
, SSL
*ssl
,
2332 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2336 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2338 return ctx
->sessions
;
2341 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2344 /* For some cases with ctx == NULL perform syntax checks */
2347 #ifndef OPENSSL_NO_EC
2348 case SSL_CTRL_SET_GROUPS_LIST
:
2349 return tls1_set_groups_list(NULL
, NULL
, parg
);
2351 case SSL_CTRL_SET_SIGALGS_LIST
:
2352 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2353 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2360 case SSL_CTRL_GET_READ_AHEAD
:
2361 return ctx
->read_ahead
;
2362 case SSL_CTRL_SET_READ_AHEAD
:
2363 l
= ctx
->read_ahead
;
2364 ctx
->read_ahead
= larg
;
2367 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2368 ctx
->msg_callback_arg
= parg
;
2371 case SSL_CTRL_GET_MAX_CERT_LIST
:
2372 return (long)ctx
->max_cert_list
;
2373 case SSL_CTRL_SET_MAX_CERT_LIST
:
2376 l
= (long)ctx
->max_cert_list
;
2377 ctx
->max_cert_list
= (size_t)larg
;
2380 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2383 l
= (long)ctx
->session_cache_size
;
2384 ctx
->session_cache_size
= (size_t)larg
;
2386 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2387 return (long)ctx
->session_cache_size
;
2388 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2389 l
= ctx
->session_cache_mode
;
2390 ctx
->session_cache_mode
= larg
;
2392 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2393 return ctx
->session_cache_mode
;
2395 case SSL_CTRL_SESS_NUMBER
:
2396 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2397 case SSL_CTRL_SESS_CONNECT
:
2398 return tsan_load(&ctx
->stats
.sess_connect
);
2399 case SSL_CTRL_SESS_CONNECT_GOOD
:
2400 return tsan_load(&ctx
->stats
.sess_connect_good
);
2401 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2402 return tsan_load(&ctx
->stats
.sess_connect_renegotiate
);
2403 case SSL_CTRL_SESS_ACCEPT
:
2404 return tsan_load(&ctx
->stats
.sess_accept
);
2405 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2406 return tsan_load(&ctx
->stats
.sess_accept_good
);
2407 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2408 return tsan_load(&ctx
->stats
.sess_accept_renegotiate
);
2409 case SSL_CTRL_SESS_HIT
:
2410 return tsan_load(&ctx
->stats
.sess_hit
);
2411 case SSL_CTRL_SESS_CB_HIT
:
2412 return tsan_load(&ctx
->stats
.sess_cb_hit
);
2413 case SSL_CTRL_SESS_MISSES
:
2414 return tsan_load(&ctx
->stats
.sess_miss
);
2415 case SSL_CTRL_SESS_TIMEOUTS
:
2416 return tsan_load(&ctx
->stats
.sess_timeout
);
2417 case SSL_CTRL_SESS_CACHE_FULL
:
2418 return tsan_load(&ctx
->stats
.sess_cache_full
);
2420 return (ctx
->mode
|= larg
);
2421 case SSL_CTRL_CLEAR_MODE
:
2422 return (ctx
->mode
&= ~larg
);
2423 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2424 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2426 ctx
->max_send_fragment
= larg
;
2427 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2428 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2430 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2431 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2433 ctx
->split_send_fragment
= larg
;
2435 case SSL_CTRL_SET_MAX_PIPELINES
:
2436 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2438 ctx
->max_pipelines
= larg
;
2440 case SSL_CTRL_CERT_FLAGS
:
2441 return (ctx
->cert
->cert_flags
|= larg
);
2442 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2443 return (ctx
->cert
->cert_flags
&= ~larg
);
2444 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2445 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2446 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2447 &ctx
->min_proto_version
);
2448 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2449 return ctx
->min_proto_version
;
2450 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2451 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2452 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2453 &ctx
->max_proto_version
);
2454 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2455 return ctx
->max_proto_version
;
2457 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2461 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2464 case SSL_CTRL_SET_MSG_CALLBACK
:
2465 ctx
->msg_callback
= (void (*)
2466 (int write_p
, int version
, int content_type
,
2467 const void *buf
, size_t len
, SSL
*ssl
,
2472 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2476 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2485 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2486 const SSL_CIPHER
*const *bp
)
2488 if ((*ap
)->id
> (*bp
)->id
)
2490 if ((*ap
)->id
< (*bp
)->id
)
2495 /** return a STACK of the ciphers available for the SSL and in order of
2497 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2500 if (s
->cipher_list
!= NULL
) {
2501 return s
->cipher_list
;
2502 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2503 return s
->ctx
->cipher_list
;
2509 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2511 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2513 return s
->session
->ciphers
;
2516 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2518 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2521 ciphers
= SSL_get_ciphers(s
);
2524 if (!ssl_set_client_disabled(s
))
2526 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2527 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2528 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2530 sk
= sk_SSL_CIPHER_new_null();
2533 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2534 sk_SSL_CIPHER_free(sk
);
2542 /** return a STACK of the ciphers available for the SSL and in order of
2544 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2547 if (s
->cipher_list_by_id
!= NULL
) {
2548 return s
->cipher_list_by_id
;
2549 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2550 return s
->ctx
->cipher_list_by_id
;
2556 /** The old interface to get the same thing as SSL_get_ciphers() */
2557 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2559 const SSL_CIPHER
*c
;
2560 STACK_OF(SSL_CIPHER
) *sk
;
2564 sk
= SSL_get_ciphers(s
);
2565 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2567 c
= sk_SSL_CIPHER_value(sk
, n
);
2573 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2575 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2578 return ctx
->cipher_list
;
2583 * Distinguish between ciphers controlled by set_ciphersuite() and
2584 * set_cipher_list() when counting.
2586 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
2589 const SSL_CIPHER
*c
;
2593 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
2594 c
= sk_SSL_CIPHER_value(sk
, i
);
2595 if (c
->min_tls
>= TLS1_3_VERSION
)
2602 /** specify the ciphers to be used by default by the SSL_CTX */
2603 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2605 STACK_OF(SSL_CIPHER
) *sk
;
2607 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2608 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2611 * ssl_create_cipher_list may return an empty stack if it was unable to
2612 * find a cipher matching the given rule string (for example if the rule
2613 * string specifies a cipher which has been disabled). This is not an
2614 * error as far as ssl_create_cipher_list is concerned, and hence
2615 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2619 else if (cipher_list_tls12_num(sk
) == 0) {
2620 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2626 /** specify the ciphers to be used by the SSL */
2627 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2629 STACK_OF(SSL_CIPHER
) *sk
;
2631 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2632 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2634 /* see comment in SSL_CTX_set_cipher_list */
2637 else if (cipher_list_tls12_num(sk
) == 0) {
2638 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2644 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2647 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2648 const SSL_CIPHER
*c
;
2652 || s
->session
== NULL
2653 || s
->session
->ciphers
== NULL
2658 clntsk
= s
->session
->ciphers
;
2659 srvrsk
= SSL_get_ciphers(s
);
2660 if (clntsk
== NULL
|| srvrsk
== NULL
)
2663 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2666 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2669 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2670 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2673 n
= strlen(c
->name
);
2689 /** return a servername extension value if provided in Client Hello, or NULL.
2690 * So far, only host_name types are defined (RFC 3546).
2693 const char *SSL_get_servername(const SSL
*s
, const int type
)
2695 if (type
!= TLSEXT_NAMETYPE_host_name
)
2699 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2700 * SNI value to return if we are resuming/resumed. N.B. that we still
2701 * call the relevant callbacks for such resumption flows, and callbacks
2702 * might error out if there is not a SNI value available.
2705 return s
->session
->ext
.hostname
;
2706 return s
->ext
.hostname
;
2709 int SSL_get_servername_type(const SSL
*s
)
2712 && (!s
->ext
.hostname
? s
->session
->
2713 ext
.hostname
: s
->ext
.hostname
))
2714 return TLSEXT_NAMETYPE_host_name
;
2719 * SSL_select_next_proto implements the standard protocol selection. It is
2720 * expected that this function is called from the callback set by
2721 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2722 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2723 * not included in the length. A byte string of length 0 is invalid. No byte
2724 * string may be truncated. The current, but experimental algorithm for
2725 * selecting the protocol is: 1) If the server doesn't support NPN then this
2726 * is indicated to the callback. In this case, the client application has to
2727 * abort the connection or have a default application level protocol. 2) If
2728 * the server supports NPN, but advertises an empty list then the client
2729 * selects the first protocol in its list, but indicates via the API that this
2730 * fallback case was enacted. 3) Otherwise, the client finds the first
2731 * protocol in the server's list that it supports and selects this protocol.
2732 * This is because it's assumed that the server has better information about
2733 * which protocol a client should use. 4) If the client doesn't support any
2734 * of the server's advertised protocols, then this is treated the same as
2735 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2736 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2738 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2739 const unsigned char *server
,
2740 unsigned int server_len
,
2741 const unsigned char *client
, unsigned int client_len
)
2744 const unsigned char *result
;
2745 int status
= OPENSSL_NPN_UNSUPPORTED
;
2748 * For each protocol in server preference order, see if we support it.
2750 for (i
= 0; i
< server_len
;) {
2751 for (j
= 0; j
< client_len
;) {
2752 if (server
[i
] == client
[j
] &&
2753 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2754 /* We found a match */
2755 result
= &server
[i
];
2756 status
= OPENSSL_NPN_NEGOTIATED
;
2766 /* There's no overlap between our protocols and the server's list. */
2768 status
= OPENSSL_NPN_NO_OVERLAP
;
2771 *out
= (unsigned char *)result
+ 1;
2772 *outlen
= result
[0];
2776 #ifndef OPENSSL_NO_NEXTPROTONEG
2778 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2779 * client's requested protocol for this connection and returns 0. If the
2780 * client didn't request any protocol, then *data is set to NULL. Note that
2781 * the client can request any protocol it chooses. The value returned from
2782 * this function need not be a member of the list of supported protocols
2783 * provided by the callback.
2785 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2792 *len
= (unsigned int)s
->ext
.npn_len
;
2797 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2798 * a TLS server needs a list of supported protocols for Next Protocol
2799 * Negotiation. The returned list must be in wire format. The list is
2800 * returned by setting |out| to point to it and |outlen| to its length. This
2801 * memory will not be modified, but one should assume that the SSL* keeps a
2802 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2803 * wishes to advertise. Otherwise, no such extension will be included in the
2806 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2807 SSL_CTX_npn_advertised_cb_func cb
,
2810 ctx
->ext
.npn_advertised_cb
= cb
;
2811 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2815 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2816 * client needs to select a protocol from the server's provided list. |out|
2817 * must be set to point to the selected protocol (which may be within |in|).
2818 * The length of the protocol name must be written into |outlen|. The
2819 * server's advertised protocols are provided in |in| and |inlen|. The
2820 * callback can assume that |in| is syntactically valid. The client must
2821 * select a protocol. It is fatal to the connection if this callback returns
2822 * a value other than SSL_TLSEXT_ERR_OK.
2824 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2825 SSL_CTX_npn_select_cb_func cb
,
2828 ctx
->ext
.npn_select_cb
= cb
;
2829 ctx
->ext
.npn_select_cb_arg
= arg
;
2834 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2835 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2836 * length-prefixed strings). Returns 0 on success.
2838 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2839 unsigned int protos_len
)
2841 OPENSSL_free(ctx
->ext
.alpn
);
2842 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2843 if (ctx
->ext
.alpn
== NULL
) {
2844 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2847 ctx
->ext
.alpn_len
= protos_len
;
2853 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2854 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2855 * length-prefixed strings). Returns 0 on success.
2857 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2858 unsigned int protos_len
)
2860 OPENSSL_free(ssl
->ext
.alpn
);
2861 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2862 if (ssl
->ext
.alpn
== NULL
) {
2863 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2866 ssl
->ext
.alpn_len
= protos_len
;
2872 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2873 * called during ClientHello processing in order to select an ALPN protocol
2874 * from the client's list of offered protocols.
2876 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2877 SSL_CTX_alpn_select_cb_func cb
,
2880 ctx
->ext
.alpn_select_cb
= cb
;
2881 ctx
->ext
.alpn_select_cb_arg
= arg
;
2885 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2886 * On return it sets |*data| to point to |*len| bytes of protocol name
2887 * (not including the leading length-prefix byte). If the server didn't
2888 * respond with a negotiated protocol then |*len| will be zero.
2890 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2895 *data
= ssl
->s3
->alpn_selected
;
2899 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2902 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2903 const char *label
, size_t llen
,
2904 const unsigned char *context
, size_t contextlen
,
2907 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2910 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2912 contextlen
, use_context
);
2915 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2916 const char *label
, size_t llen
,
2917 const unsigned char *context
,
2920 if (s
->version
!= TLS1_3_VERSION
)
2923 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2924 context
, contextlen
);
2927 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2929 const unsigned char *session_id
= a
->session_id
;
2931 unsigned char tmp_storage
[4];
2933 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2934 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2935 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2936 session_id
= tmp_storage
;
2940 ((unsigned long)session_id
[0]) |
2941 ((unsigned long)session_id
[1] << 8L) |
2942 ((unsigned long)session_id
[2] << 16L) |
2943 ((unsigned long)session_id
[3] << 24L);
2948 * NB: If this function (or indeed the hash function which uses a sort of
2949 * coarser function than this one) is changed, ensure
2950 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2951 * being able to construct an SSL_SESSION that will collide with any existing
2952 * session with a matching session ID.
2954 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2956 if (a
->ssl_version
!= b
->ssl_version
)
2958 if (a
->session_id_length
!= b
->session_id_length
)
2960 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2964 * These wrapper functions should remain rather than redeclaring
2965 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2966 * variable. The reason is that the functions aren't static, they're exposed
2970 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2972 SSL_CTX
*ret
= NULL
;
2975 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2979 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2982 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2983 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2986 ret
= OPENSSL_zalloc(sizeof(*ret
));
2991 ret
->min_proto_version
= 0;
2992 ret
->max_proto_version
= 0;
2993 ret
->mode
= SSL_MODE_AUTO_RETRY
;
2994 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2995 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2996 /* We take the system default. */
2997 ret
->session_timeout
= meth
->get_timeout();
2998 ret
->references
= 1;
2999 ret
->lock
= CRYPTO_THREAD_lock_new();
3000 if (ret
->lock
== NULL
) {
3001 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3005 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3006 ret
->verify_mode
= SSL_VERIFY_NONE
;
3007 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3010 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3011 if (ret
->sessions
== NULL
)
3013 ret
->cert_store
= X509_STORE_new();
3014 if (ret
->cert_store
== NULL
)
3016 #ifndef OPENSSL_NO_CT
3017 ret
->ctlog_store
= CTLOG_STORE_new();
3018 if (ret
->ctlog_store
== NULL
)
3022 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
3025 if (!ssl_create_cipher_list(ret
->method
,
3026 ret
->tls13_ciphersuites
,
3027 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3028 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
3029 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3030 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3034 ret
->param
= X509_VERIFY_PARAM_new();
3035 if (ret
->param
== NULL
)
3038 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
3039 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
3042 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
3043 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
3047 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3050 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3053 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3056 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3059 /* No compression for DTLS */
3060 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3061 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3063 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3064 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3066 /* Setup RFC5077 ticket keys */
3067 if ((RAND_bytes(ret
->ext
.tick_key_name
,
3068 sizeof(ret
->ext
.tick_key_name
)) <= 0)
3069 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
3070 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
3071 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
3072 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
3073 ret
->options
|= SSL_OP_NO_TICKET
;
3075 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
3076 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
3079 #ifndef OPENSSL_NO_SRP
3080 if (!SSL_CTX_SRP_CTX_init(ret
))
3083 #ifndef OPENSSL_NO_ENGINE
3084 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3085 # define eng_strx(x) #x
3086 # define eng_str(x) eng_strx(x)
3087 /* Use specific client engine automatically... ignore errors */
3090 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3093 ENGINE_load_builtin_engines();
3094 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3096 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3102 * Default is to connect to non-RI servers. When RI is more widely
3103 * deployed might change this.
3105 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3107 * Disable compression by default to prevent CRIME. Applications can
3108 * re-enable compression by configuring
3109 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3110 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3111 * middlebox compatibility by default. This may be disabled by default in
3112 * a later OpenSSL version.
3114 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3116 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3119 * We cannot usefully set a default max_early_data here (which gets
3120 * propagated in SSL_new(), for the following reason: setting the
3121 * SSL field causes tls_construct_stoc_early_data() to tell the
3122 * client that early data will be accepted when constructing a TLS 1.3
3123 * session ticket, and the client will accordingly send us early data
3124 * when using that ticket (if the client has early data to send).
3125 * However, in order for the early data to actually be consumed by
3126 * the application, the application must also have calls to
3127 * SSL_read_early_data(); otherwise we'll just skip past the early data
3128 * and ignore it. So, since the application must add calls to
3129 * SSL_read_early_data(), we also require them to add
3130 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3131 * eliminating the bandwidth-wasting early data in the case described
3134 ret
->max_early_data
= 0;
3137 * Default recv_max_early_data is a fully loaded single record. Could be
3138 * split across multiple records in practice. We set this differently to
3139 * max_early_data so that, in the default case, we do not advertise any
3140 * support for early_data, but if a client were to send us some (e.g.
3141 * because of an old, stale ticket) then we will tolerate it and skip over
3144 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3146 /* By default we send two session tickets automatically in TLSv1.3 */
3147 ret
->num_tickets
= 2;
3149 ssl_ctx_system_config(ret
);
3153 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3159 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3163 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3166 REF_PRINT_COUNT("SSL_CTX", ctx
);
3167 REF_ASSERT_ISNT(i
< 2);
3168 return ((i
> 1) ? 1 : 0);
3171 void SSL_CTX_free(SSL_CTX
*a
)
3178 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3179 REF_PRINT_COUNT("SSL_CTX", a
);
3182 REF_ASSERT_ISNT(i
< 0);
3184 X509_VERIFY_PARAM_free(a
->param
);
3185 dane_ctx_final(&a
->dane
);
3188 * Free internal session cache. However: the remove_cb() may reference
3189 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3190 * after the sessions were flushed.
3191 * As the ex_data handling routines might also touch the session cache,
3192 * the most secure solution seems to be: empty (flush) the cache, then
3193 * free ex_data, then finally free the cache.
3194 * (See ticket [openssl.org #212].)
3196 if (a
->sessions
!= NULL
)
3197 SSL_CTX_flush_sessions(a
, 0);
3199 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3200 lh_SSL_SESSION_free(a
->sessions
);
3201 X509_STORE_free(a
->cert_store
);
3202 #ifndef OPENSSL_NO_CT
3203 CTLOG_STORE_free(a
->ctlog_store
);
3205 sk_SSL_CIPHER_free(a
->cipher_list
);
3206 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3207 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3208 ssl_cert_free(a
->cert
);
3209 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3210 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3211 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3212 a
->comp_methods
= NULL
;
3213 #ifndef OPENSSL_NO_SRTP
3214 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3216 #ifndef OPENSSL_NO_SRP
3217 SSL_CTX_SRP_CTX_free(a
);
3219 #ifndef OPENSSL_NO_ENGINE
3220 ENGINE_finish(a
->client_cert_engine
);
3223 #ifndef OPENSSL_NO_EC
3224 OPENSSL_free(a
->ext
.ecpointformats
);
3225 OPENSSL_free(a
->ext
.supportedgroups
);
3227 OPENSSL_free(a
->ext
.alpn
);
3228 OPENSSL_secure_free(a
->ext
.secure
);
3230 CRYPTO_THREAD_lock_free(a
->lock
);
3235 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3237 ctx
->default_passwd_callback
= cb
;
3240 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3242 ctx
->default_passwd_callback_userdata
= u
;
3245 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3247 return ctx
->default_passwd_callback
;
3250 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3252 return ctx
->default_passwd_callback_userdata
;
3255 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3257 s
->default_passwd_callback
= cb
;
3260 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3262 s
->default_passwd_callback_userdata
= u
;
3265 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3267 return s
->default_passwd_callback
;
3270 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3272 return s
->default_passwd_callback_userdata
;
3275 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3276 int (*cb
) (X509_STORE_CTX
*, void *),
3279 ctx
->app_verify_callback
= cb
;
3280 ctx
->app_verify_arg
= arg
;
3283 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3284 int (*cb
) (int, X509_STORE_CTX
*))
3286 ctx
->verify_mode
= mode
;
3287 ctx
->default_verify_callback
= cb
;
3290 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3292 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3295 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3297 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3300 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3302 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3305 void ssl_set_masks(SSL
*s
)
3308 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3309 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3310 unsigned long mask_k
, mask_a
;
3311 #ifndef OPENSSL_NO_EC
3312 int have_ecc_cert
, ecdsa_ok
;
3317 #ifndef OPENSSL_NO_DH
3318 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3323 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3324 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3325 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3326 #ifndef OPENSSL_NO_EC
3327 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3333 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3334 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3337 #ifndef OPENSSL_NO_GOST
3338 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3339 mask_k
|= SSL_kGOST
;
3340 mask_a
|= SSL_aGOST12
;
3342 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3343 mask_k
|= SSL_kGOST
;
3344 mask_a
|= SSL_aGOST12
;
3346 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3347 mask_k
|= SSL_kGOST
;
3348 mask_a
|= SSL_aGOST01
;
3359 * If we only have an RSA-PSS certificate allow RSA authentication
3360 * if TLS 1.2 and peer supports it.
3363 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3364 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3365 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3372 mask_a
|= SSL_aNULL
;
3375 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3376 * depending on the key usage extension.
3378 #ifndef OPENSSL_NO_EC
3379 if (have_ecc_cert
) {
3381 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3382 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3383 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3386 mask_a
|= SSL_aECDSA
;
3388 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3389 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3390 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3391 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3392 mask_a
|= SSL_aECDSA
;
3394 /* Allow Ed448 for TLS 1.2 if peer supports it */
3395 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3396 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3397 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3398 mask_a
|= SSL_aECDSA
;
3401 #ifndef OPENSSL_NO_EC
3402 mask_k
|= SSL_kECDHE
;
3405 #ifndef OPENSSL_NO_PSK
3408 if (mask_k
& SSL_kRSA
)
3409 mask_k
|= SSL_kRSAPSK
;
3410 if (mask_k
& SSL_kDHE
)
3411 mask_k
|= SSL_kDHEPSK
;
3412 if (mask_k
& SSL_kECDHE
)
3413 mask_k
|= SSL_kECDHEPSK
;
3416 s
->s3
->tmp
.mask_k
= mask_k
;
3417 s
->s3
->tmp
.mask_a
= mask_a
;
3420 #ifndef OPENSSL_NO_EC
3422 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3424 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3425 /* key usage, if present, must allow signing */
3426 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3427 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3428 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3432 return 1; /* all checks are ok */
3437 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3438 size_t *serverinfo_length
)
3440 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3441 *serverinfo_length
= 0;
3443 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3446 *serverinfo
= cpk
->serverinfo
;
3447 *serverinfo_length
= cpk
->serverinfo_length
;
3451 void ssl_update_cache(SSL
*s
, int mode
)
3456 * If the session_id_length is 0, we are not supposed to cache it, and it
3457 * would be rather hard to do anyway :-)
3459 if (s
->session
->session_id_length
== 0)
3463 * If sid_ctx_length is 0 there is no specific application context
3464 * associated with this session, so when we try to resume it and
3465 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3466 * indication that this is actually a session for the proper application
3467 * context, and the *handshake* will fail, not just the resumption attempt.
3468 * Do not cache (on the server) these sessions that are not resumable
3469 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3471 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3472 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3475 i
= s
->session_ctx
->session_cache_mode
;
3477 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3479 * Add the session to the internal cache. In server side TLSv1.3 we
3480 * normally don't do this because by default it's a full stateless ticket
3481 * with only a dummy session id so there is no reason to cache it,
3483 * - we are doing early_data, in which case we cache so that we can
3485 * - the application has set a remove_session_cb so needs to know about
3486 * session timeout events
3487 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3489 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3490 && (!SSL_IS_TLS13(s
)
3492 || (s
->max_early_data
> 0
3493 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3494 || s
->session_ctx
->remove_session_cb
!= NULL
3495 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3496 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3499 * Add the session to the external cache. We do this even in server side
3500 * TLSv1.3 without early data because some applications just want to
3501 * know about the creation of a session and aren't doing a full cache.
3503 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3504 SSL_SESSION_up_ref(s
->session
);
3505 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3506 SSL_SESSION_free(s
->session
);
3510 /* auto flush every 255 connections */
3511 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3512 TSAN_QUALIFIER
int *stat
;
3513 if (mode
& SSL_SESS_CACHE_CLIENT
)
3514 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3516 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3517 if ((tsan_load(stat
) & 0xff) == 0xff)
3518 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3522 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
3527 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
3532 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3536 if (s
->method
!= meth
) {
3537 const SSL_METHOD
*sm
= s
->method
;
3538 int (*hf
) (SSL
*) = s
->handshake_func
;
3540 if (sm
->version
== meth
->version
)
3545 ret
= s
->method
->ssl_new(s
);
3548 if (hf
== sm
->ssl_connect
)
3549 s
->handshake_func
= meth
->ssl_connect
;
3550 else if (hf
== sm
->ssl_accept
)
3551 s
->handshake_func
= meth
->ssl_accept
;
3556 int SSL_get_error(const SSL
*s
, int i
)
3563 return SSL_ERROR_NONE
;
3566 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3567 * where we do encode the error
3569 if ((l
= ERR_peek_error()) != 0) {
3570 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3571 return SSL_ERROR_SYSCALL
;
3573 return SSL_ERROR_SSL
;
3576 if (SSL_want_read(s
)) {
3577 bio
= SSL_get_rbio(s
);
3578 if (BIO_should_read(bio
))
3579 return SSL_ERROR_WANT_READ
;
3580 else if (BIO_should_write(bio
))
3582 * This one doesn't make too much sense ... We never try to write
3583 * to the rbio, and an application program where rbio and wbio
3584 * are separate couldn't even know what it should wait for.
3585 * However if we ever set s->rwstate incorrectly (so that we have
3586 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3587 * wbio *are* the same, this test works around that bug; so it
3588 * might be safer to keep it.
3590 return SSL_ERROR_WANT_WRITE
;
3591 else if (BIO_should_io_special(bio
)) {
3592 reason
= BIO_get_retry_reason(bio
);
3593 if (reason
== BIO_RR_CONNECT
)
3594 return SSL_ERROR_WANT_CONNECT
;
3595 else if (reason
== BIO_RR_ACCEPT
)
3596 return SSL_ERROR_WANT_ACCEPT
;
3598 return SSL_ERROR_SYSCALL
; /* unknown */
3602 if (SSL_want_write(s
)) {
3603 /* Access wbio directly - in order to use the buffered bio if present */
3605 if (BIO_should_write(bio
))
3606 return SSL_ERROR_WANT_WRITE
;
3607 else if (BIO_should_read(bio
))
3609 * See above (SSL_want_read(s) with BIO_should_write(bio))
3611 return SSL_ERROR_WANT_READ
;
3612 else if (BIO_should_io_special(bio
)) {
3613 reason
= BIO_get_retry_reason(bio
);
3614 if (reason
== BIO_RR_CONNECT
)
3615 return SSL_ERROR_WANT_CONNECT
;
3616 else if (reason
== BIO_RR_ACCEPT
)
3617 return SSL_ERROR_WANT_ACCEPT
;
3619 return SSL_ERROR_SYSCALL
;
3622 if (SSL_want_x509_lookup(s
))
3623 return SSL_ERROR_WANT_X509_LOOKUP
;
3624 if (SSL_want_async(s
))
3625 return SSL_ERROR_WANT_ASYNC
;
3626 if (SSL_want_async_job(s
))
3627 return SSL_ERROR_WANT_ASYNC_JOB
;
3628 if (SSL_want_client_hello_cb(s
))
3629 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3631 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3632 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3633 return SSL_ERROR_ZERO_RETURN
;
3635 return SSL_ERROR_SYSCALL
;
3638 static int ssl_do_handshake_intern(void *vargs
)
3640 struct ssl_async_args
*args
;
3643 args
= (struct ssl_async_args
*)vargs
;
3646 return s
->handshake_func(s
);
3649 int SSL_do_handshake(SSL
*s
)
3653 if (s
->handshake_func
== NULL
) {
3654 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3658 ossl_statem_check_finish_init(s
, -1);
3660 s
->method
->ssl_renegotiate_check(s
, 0);
3662 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3663 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3664 struct ssl_async_args args
;
3668 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3670 ret
= s
->handshake_func(s
);
3676 void SSL_set_accept_state(SSL
*s
)
3680 ossl_statem_clear(s
);
3681 s
->handshake_func
= s
->method
->ssl_accept
;
3685 void SSL_set_connect_state(SSL
*s
)
3689 ossl_statem_clear(s
);
3690 s
->handshake_func
= s
->method
->ssl_connect
;
3694 int ssl_undefined_function(SSL
*s
)
3696 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3700 int ssl_undefined_void_function(void)
3702 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3703 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3707 int ssl_undefined_const_function(const SSL
*s
)
3712 const SSL_METHOD
*ssl_bad_method(int ver
)
3714 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3718 const char *ssl_protocol_to_string(int version
)
3722 case TLS1_3_VERSION
:
3725 case TLS1_2_VERSION
:
3728 case TLS1_1_VERSION
:
3743 case DTLS1_2_VERSION
:
3751 const char *SSL_get_version(const SSL
*s
)
3753 return ssl_protocol_to_string(s
->version
);
3756 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
3758 STACK_OF(X509_NAME
) *sk
;
3767 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
3769 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
3770 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
3772 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3775 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
3777 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3786 SSL
*SSL_dup(SSL
*s
)
3791 /* If we're not quiescent, just up_ref! */
3792 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3793 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3798 * Otherwise, copy configuration state, and session if set.
3800 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3803 if (s
->session
!= NULL
) {
3805 * Arranges to share the same session via up_ref. This "copies"
3806 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3808 if (!SSL_copy_session_id(ret
, s
))
3812 * No session has been established yet, so we have to expect that
3813 * s->cert or ret->cert will be changed later -- they should not both
3814 * point to the same object, and thus we can't use
3815 * SSL_copy_session_id.
3817 if (!SSL_set_ssl_method(ret
, s
->method
))
3820 if (s
->cert
!= NULL
) {
3821 ssl_cert_free(ret
->cert
);
3822 ret
->cert
= ssl_cert_dup(s
->cert
);
3823 if (ret
->cert
== NULL
)
3827 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3828 (int)s
->sid_ctx_length
))
3832 if (!ssl_dane_dup(ret
, s
))
3834 ret
->version
= s
->version
;
3835 ret
->options
= s
->options
;
3836 ret
->mode
= s
->mode
;
3837 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3838 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3839 ret
->msg_callback
= s
->msg_callback
;
3840 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3841 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3842 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3843 ret
->generate_session_id
= s
->generate_session_id
;
3845 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3847 /* copy app data, a little dangerous perhaps */
3848 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3851 /* setup rbio, and wbio */
3852 if (s
->rbio
!= NULL
) {
3853 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3856 if (s
->wbio
!= NULL
) {
3857 if (s
->wbio
!= s
->rbio
) {
3858 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3861 BIO_up_ref(ret
->rbio
);
3862 ret
->wbio
= ret
->rbio
;
3866 ret
->server
= s
->server
;
3867 if (s
->handshake_func
) {
3869 SSL_set_accept_state(ret
);
3871 SSL_set_connect_state(ret
);
3873 ret
->shutdown
= s
->shutdown
;
3876 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3877 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3879 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3881 /* dup the cipher_list and cipher_list_by_id stacks */
3882 if (s
->cipher_list
!= NULL
) {
3883 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3886 if (s
->cipher_list_by_id
!= NULL
)
3887 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3891 /* Dup the client_CA list */
3892 if (!dup_ca_names(&ret
->ca_names
, s
->ca_names
)
3893 || !dup_ca_names(&ret
->client_ca_names
, s
->client_ca_names
))
3903 void ssl_clear_cipher_ctx(SSL
*s
)
3905 if (s
->enc_read_ctx
!= NULL
) {
3906 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3907 s
->enc_read_ctx
= NULL
;
3909 if (s
->enc_write_ctx
!= NULL
) {
3910 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3911 s
->enc_write_ctx
= NULL
;
3913 #ifndef OPENSSL_NO_COMP
3914 COMP_CTX_free(s
->expand
);
3916 COMP_CTX_free(s
->compress
);
3921 X509
*SSL_get_certificate(const SSL
*s
)
3923 if (s
->cert
!= NULL
)
3924 return s
->cert
->key
->x509
;
3929 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3931 if (s
->cert
!= NULL
)
3932 return s
->cert
->key
->privatekey
;
3937 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3939 if (ctx
->cert
!= NULL
)
3940 return ctx
->cert
->key
->x509
;
3945 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3947 if (ctx
->cert
!= NULL
)
3948 return ctx
->cert
->key
->privatekey
;
3953 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3955 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3956 return s
->session
->cipher
;
3960 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3962 return s
->s3
->tmp
.new_cipher
;
3965 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
3967 #ifndef OPENSSL_NO_COMP
3968 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3974 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
3976 #ifndef OPENSSL_NO_COMP
3977 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3983 int ssl_init_wbio_buffer(SSL
*s
)
3987 if (s
->bbio
!= NULL
) {
3988 /* Already buffered. */
3992 bbio
= BIO_new(BIO_f_buffer());
3993 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3995 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3999 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4004 int ssl_free_wbio_buffer(SSL
*s
)
4006 /* callers ensure s is never null */
4007 if (s
->bbio
== NULL
)
4010 s
->wbio
= BIO_pop(s
->wbio
);
4017 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4019 ctx
->quiet_shutdown
= mode
;
4022 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4024 return ctx
->quiet_shutdown
;
4027 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4029 s
->quiet_shutdown
= mode
;
4032 int SSL_get_quiet_shutdown(const SSL
*s
)
4034 return s
->quiet_shutdown
;
4037 void SSL_set_shutdown(SSL
*s
, int mode
)
4042 int SSL_get_shutdown(const SSL
*s
)
4047 int SSL_version(const SSL
*s
)
4052 int SSL_client_version(const SSL
*s
)
4054 return s
->client_version
;
4057 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4062 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4065 if (ssl
->ctx
== ctx
)
4068 ctx
= ssl
->session_ctx
;
4069 new_cert
= ssl_cert_dup(ctx
->cert
);
4070 if (new_cert
== NULL
) {
4074 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
4075 ssl_cert_free(new_cert
);
4079 ssl_cert_free(ssl
->cert
);
4080 ssl
->cert
= new_cert
;
4083 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4084 * so setter APIs must prevent invalid lengths from entering the system.
4086 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
4090 * If the session ID context matches that of the parent SSL_CTX,
4091 * inherit it from the new SSL_CTX as well. If however the context does
4092 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4093 * leave it unchanged.
4095 if ((ssl
->ctx
!= NULL
) &&
4096 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4097 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4098 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4099 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4102 SSL_CTX_up_ref(ctx
);
4103 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4109 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4111 return X509_STORE_set_default_paths(ctx
->cert_store
);
4114 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4116 X509_LOOKUP
*lookup
;
4118 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4121 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4123 /* Clear any errors if the default directory does not exist */
4129 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4131 X509_LOOKUP
*lookup
;
4133 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4137 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4139 /* Clear any errors if the default file does not exist */
4145 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4148 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4151 void SSL_set_info_callback(SSL
*ssl
,
4152 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4154 ssl
->info_callback
= cb
;
4158 * One compiler (Diab DCC) doesn't like argument names in returned function
4161 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4164 return ssl
->info_callback
;
4167 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4169 ssl
->verify_result
= arg
;
4172 long SSL_get_verify_result(const SSL
*ssl
)
4174 return ssl
->verify_result
;
4177 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4180 return sizeof(ssl
->s3
->client_random
);
4181 if (outlen
> sizeof(ssl
->s3
->client_random
))
4182 outlen
= sizeof(ssl
->s3
->client_random
);
4183 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4187 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4190 return sizeof(ssl
->s3
->server_random
);
4191 if (outlen
> sizeof(ssl
->s3
->server_random
))
4192 outlen
= sizeof(ssl
->s3
->server_random
);
4193 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4197 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4198 unsigned char *out
, size_t outlen
)
4201 return session
->master_key_length
;
4202 if (outlen
> session
->master_key_length
)
4203 outlen
= session
->master_key_length
;
4204 memcpy(out
, session
->master_key
, outlen
);
4208 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4211 if (len
> sizeof(sess
->master_key
))
4214 memcpy(sess
->master_key
, in
, len
);
4215 sess
->master_key_length
= len
;
4220 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4222 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4225 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4227 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4230 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4232 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4235 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4237 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4240 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4242 return ctx
->cert_store
;
4245 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4247 X509_STORE_free(ctx
->cert_store
);
4248 ctx
->cert_store
= store
;
4251 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4254 X509_STORE_up_ref(store
);
4255 SSL_CTX_set_cert_store(ctx
, store
);
4258 int SSL_want(const SSL
*s
)
4264 * \brief Set the callback for generating temporary DH keys.
4265 * \param ctx the SSL context.
4266 * \param dh the callback
4269 #ifndef OPENSSL_NO_DH
4270 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4271 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4274 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4277 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4280 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4284 #ifndef OPENSSL_NO_PSK
4285 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4287 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4288 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4291 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4292 if (identity_hint
!= NULL
) {
4293 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4294 if (ctx
->cert
->psk_identity_hint
== NULL
)
4297 ctx
->cert
->psk_identity_hint
= NULL
;
4301 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4306 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4307 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4310 OPENSSL_free(s
->cert
->psk_identity_hint
);
4311 if (identity_hint
!= NULL
) {
4312 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4313 if (s
->cert
->psk_identity_hint
== NULL
)
4316 s
->cert
->psk_identity_hint
= NULL
;
4320 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4322 if (s
== NULL
|| s
->session
== NULL
)
4324 return s
->session
->psk_identity_hint
;
4327 const char *SSL_get_psk_identity(const SSL
*s
)
4329 if (s
== NULL
|| s
->session
== NULL
)
4331 return s
->session
->psk_identity
;
4334 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4336 s
->psk_client_callback
= cb
;
4339 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4341 ctx
->psk_client_callback
= cb
;
4344 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4346 s
->psk_server_callback
= cb
;
4349 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4351 ctx
->psk_server_callback
= cb
;
4355 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4357 s
->psk_find_session_cb
= cb
;
4360 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4361 SSL_psk_find_session_cb_func cb
)
4363 ctx
->psk_find_session_cb
= cb
;
4366 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4368 s
->psk_use_session_cb
= cb
;
4371 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4372 SSL_psk_use_session_cb_func cb
)
4374 ctx
->psk_use_session_cb
= cb
;
4377 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4378 void (*cb
) (int write_p
, int version
,
4379 int content_type
, const void *buf
,
4380 size_t len
, SSL
*ssl
, void *arg
))
4382 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4385 void SSL_set_msg_callback(SSL
*ssl
,
4386 void (*cb
) (int write_p
, int version
,
4387 int content_type
, const void *buf
,
4388 size_t len
, SSL
*ssl
, void *arg
))
4390 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4393 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4394 int (*cb
) (SSL
*ssl
,
4398 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4399 (void (*)(void))cb
);
4402 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4403 int (*cb
) (SSL
*ssl
,
4404 int is_forward_secure
))
4406 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4407 (void (*)(void))cb
);
4410 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4411 size_t (*cb
) (SSL
*ssl
, int type
,
4412 size_t len
, void *arg
))
4414 ctx
->record_padding_cb
= cb
;
4417 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4419 ctx
->record_padding_arg
= arg
;
4422 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
4424 return ctx
->record_padding_arg
;
4427 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4429 /* block size of 0 or 1 is basically no padding */
4430 if (block_size
== 1)
4431 ctx
->block_padding
= 0;
4432 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4433 ctx
->block_padding
= block_size
;
4439 void SSL_set_record_padding_callback(SSL
*ssl
,
4440 size_t (*cb
) (SSL
*ssl
, int type
,
4441 size_t len
, void *arg
))
4443 ssl
->record_padding_cb
= cb
;
4446 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4448 ssl
->record_padding_arg
= arg
;
4451 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
4453 return ssl
->record_padding_arg
;
4456 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4458 /* block size of 0 or 1 is basically no padding */
4459 if (block_size
== 1)
4460 ssl
->block_padding
= 0;
4461 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4462 ssl
->block_padding
= block_size
;
4468 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4470 s
->num_tickets
= num_tickets
;
4475 size_t SSL_get_num_tickets(const SSL
*s
)
4477 return s
->num_tickets
;
4480 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4482 ctx
->num_tickets
= num_tickets
;
4487 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
4489 return ctx
->num_tickets
;
4493 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4494 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4495 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4496 * Returns the newly allocated ctx;
4499 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4501 ssl_clear_hash_ctx(hash
);
4502 *hash
= EVP_MD_CTX_new();
4503 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4504 EVP_MD_CTX_free(*hash
);
4511 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4514 EVP_MD_CTX_free(*hash
);
4518 /* Retrieve handshake hashes */
4519 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4522 EVP_MD_CTX
*ctx
= NULL
;
4523 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4524 int hashleni
= EVP_MD_CTX_size(hdgst
);
4527 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4528 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4529 ERR_R_INTERNAL_ERROR
);
4533 ctx
= EVP_MD_CTX_new();
4537 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4538 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4539 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4540 ERR_R_INTERNAL_ERROR
);
4544 *hashlen
= hashleni
;
4548 EVP_MD_CTX_free(ctx
);
4552 int SSL_session_reused(SSL
*s
)
4557 int SSL_is_server(const SSL
*s
)
4562 #if !OPENSSL_API_1_1_0
4563 void SSL_set_debug(SSL
*s
, int debug
)
4565 /* Old function was do-nothing anyway... */
4571 void SSL_set_security_level(SSL
*s
, int level
)
4573 s
->cert
->sec_level
= level
;
4576 int SSL_get_security_level(const SSL
*s
)
4578 return s
->cert
->sec_level
;
4581 void SSL_set_security_callback(SSL
*s
,
4582 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4583 int op
, int bits
, int nid
,
4584 void *other
, void *ex
))
4586 s
->cert
->sec_cb
= cb
;
4589 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4590 const SSL_CTX
*ctx
, int op
,
4591 int bits
, int nid
, void *other
,
4593 return s
->cert
->sec_cb
;
4596 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4598 s
->cert
->sec_ex
= ex
;
4601 void *SSL_get0_security_ex_data(const SSL
*s
)
4603 return s
->cert
->sec_ex
;
4606 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4608 ctx
->cert
->sec_level
= level
;
4611 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4613 return ctx
->cert
->sec_level
;
4616 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4617 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4618 int op
, int bits
, int nid
,
4619 void *other
, void *ex
))
4621 ctx
->cert
->sec_cb
= cb
;
4624 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4630 return ctx
->cert
->sec_cb
;
4633 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4635 ctx
->cert
->sec_ex
= ex
;
4638 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4640 return ctx
->cert
->sec_ex
;
4644 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4645 * can return unsigned long, instead of the generic long return value from the
4646 * control interface.
4648 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4650 return ctx
->options
;
4653 unsigned long SSL_get_options(const SSL
*s
)
4658 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4660 return ctx
->options
|= op
;
4663 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4665 return s
->options
|= op
;
4668 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4670 return ctx
->options
&= ~op
;
4673 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4675 return s
->options
&= ~op
;
4678 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4680 return s
->verified_chain
;
4683 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4685 #ifndef OPENSSL_NO_CT
4688 * Moves SCTs from the |src| stack to the |dst| stack.
4689 * The source of each SCT will be set to |origin|.
4690 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4692 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4694 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4695 sct_source_t origin
)
4701 *dst
= sk_SCT_new_null();
4703 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4708 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4709 if (SCT_set_source(sct
, origin
) != 1)
4712 if (sk_SCT_push(*dst
, sct
) <= 0)
4720 sk_SCT_push(src
, sct
); /* Put the SCT back */
4725 * Look for data collected during ServerHello and parse if found.
4726 * Returns the number of SCTs extracted.
4728 static int ct_extract_tls_extension_scts(SSL
*s
)
4730 int scts_extracted
= 0;
4732 if (s
->ext
.scts
!= NULL
) {
4733 const unsigned char *p
= s
->ext
.scts
;
4734 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4736 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4738 SCT_LIST_free(scts
);
4741 return scts_extracted
;
4745 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4746 * contains an SCT X509 extension. They will be stored in |s->scts|.
4748 * - The number of SCTs extracted, assuming an OCSP response exists.
4749 * - 0 if no OCSP response exists or it contains no SCTs.
4750 * - A negative integer if an error occurs.
4752 static int ct_extract_ocsp_response_scts(SSL
*s
)
4754 # ifndef OPENSSL_NO_OCSP
4755 int scts_extracted
= 0;
4756 const unsigned char *p
;
4757 OCSP_BASICRESP
*br
= NULL
;
4758 OCSP_RESPONSE
*rsp
= NULL
;
4759 STACK_OF(SCT
) *scts
= NULL
;
4762 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4765 p
= s
->ext
.ocsp
.resp
;
4766 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4770 br
= OCSP_response_get1_basic(rsp
);
4774 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4775 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4781 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4783 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4784 if (scts_extracted
< 0)
4788 SCT_LIST_free(scts
);
4789 OCSP_BASICRESP_free(br
);
4790 OCSP_RESPONSE_free(rsp
);
4791 return scts_extracted
;
4793 /* Behave as if no OCSP response exists */
4799 * Attempts to extract SCTs from the peer certificate.
4800 * Return the number of SCTs extracted, or a negative integer if an error
4803 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4805 int scts_extracted
= 0;
4806 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4809 STACK_OF(SCT
) *scts
=
4810 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4813 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4815 SCT_LIST_free(scts
);
4818 return scts_extracted
;
4822 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4823 * response (if it exists) and X509v3 extensions in the certificate.
4824 * Returns NULL if an error occurs.
4826 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4828 if (!s
->scts_parsed
) {
4829 if (ct_extract_tls_extension_scts(s
) < 0 ||
4830 ct_extract_ocsp_response_scts(s
) < 0 ||
4831 ct_extract_x509v3_extension_scts(s
) < 0)
4841 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4842 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4847 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4848 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4850 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4853 for (i
= 0; i
< count
; ++i
) {
4854 SCT
*sct
= sk_SCT_value(scts
, i
);
4855 int status
= SCT_get_validation_status(sct
);
4857 if (status
== SCT_VALIDATION_STATUS_VALID
)
4860 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4864 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4868 * Since code exists that uses the custom extension handler for CT, look
4869 * for this and throw an error if they have already registered to use CT.
4871 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4872 TLSEXT_TYPE_signed_certificate_timestamp
))
4874 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4875 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4879 if (callback
!= NULL
) {
4881 * If we are validating CT, then we MUST accept SCTs served via OCSP
4883 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4887 s
->ct_validation_callback
= callback
;
4888 s
->ct_validation_callback_arg
= arg
;
4893 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4894 ssl_ct_validation_cb callback
, void *arg
)
4897 * Since code exists that uses the custom extension handler for CT, look for
4898 * this and throw an error if they have already registered to use CT.
4900 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4901 TLSEXT_TYPE_signed_certificate_timestamp
))
4903 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4904 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4908 ctx
->ct_validation_callback
= callback
;
4909 ctx
->ct_validation_callback_arg
= arg
;
4913 int SSL_ct_is_enabled(const SSL
*s
)
4915 return s
->ct_validation_callback
!= NULL
;
4918 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4920 return ctx
->ct_validation_callback
!= NULL
;
4923 int ssl_validate_ct(SSL
*s
)
4926 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4928 SSL_DANE
*dane
= &s
->dane
;
4929 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4930 const STACK_OF(SCT
) *scts
;
4933 * If no callback is set, the peer is anonymous, or its chain is invalid,
4934 * skip SCT validation - just return success. Applications that continue
4935 * handshakes without certificates, with unverified chains, or pinned leaf
4936 * certificates are outside the scope of the WebPKI and CT.
4938 * The above exclusions notwithstanding the vast majority of peers will
4939 * have rather ordinary certificate chains validated by typical
4940 * applications that perform certificate verification and therefore will
4941 * process SCTs when enabled.
4943 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4944 s
->verify_result
!= X509_V_OK
||
4945 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4949 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4950 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4952 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4953 switch (dane
->mtlsa
->usage
) {
4954 case DANETLS_USAGE_DANE_TA
:
4955 case DANETLS_USAGE_DANE_EE
:
4960 ctx
= CT_POLICY_EVAL_CTX_new();
4962 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4963 ERR_R_MALLOC_FAILURE
);
4967 issuer
= sk_X509_value(s
->verified_chain
, 1);
4968 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4969 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4970 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4971 CT_POLICY_EVAL_CTX_set_time(
4972 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4974 scts
= SSL_get0_peer_scts(s
);
4977 * This function returns success (> 0) only when all the SCTs are valid, 0
4978 * when some are invalid, and < 0 on various internal errors (out of
4979 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4980 * reason to abort the handshake, that decision is up to the callback.
4981 * Therefore, we error out only in the unexpected case that the return
4982 * value is negative.
4984 * XXX: One might well argue that the return value of this function is an
4985 * unfortunate design choice. Its job is only to determine the validation
4986 * status of each of the provided SCTs. So long as it correctly separates
4987 * the wheat from the chaff it should return success. Failure in this case
4988 * ought to correspond to an inability to carry out its duties.
4990 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4991 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4992 SSL_R_SCT_VERIFICATION_FAILED
);
4996 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4998 ret
= 0; /* This function returns 0 on failure */
5000 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5001 SSL_R_CALLBACK_FAILED
);
5004 CT_POLICY_EVAL_CTX_free(ctx
);
5006 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5007 * failure return code here. Also the application may wish the complete
5008 * the handshake, and then disconnect cleanly at a higher layer, after
5009 * checking the verification status of the completed connection.
5011 * We therefore force a certificate verification failure which will be
5012 * visible via SSL_get_verify_result() and cached as part of any resumed
5015 * Note: the permissive callback is for information gathering only, always
5016 * returns success, and does not affect verification status. Only the
5017 * strict callback or a custom application-specified callback can trigger
5018 * connection failure or record a verification error.
5021 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
5025 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
5027 switch (validation_mode
) {
5029 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5031 case SSL_CT_VALIDATION_PERMISSIVE
:
5032 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
5033 case SSL_CT_VALIDATION_STRICT
:
5034 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
5038 int SSL_enable_ct(SSL
*s
, int validation_mode
)
5040 switch (validation_mode
) {
5042 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5044 case SSL_CT_VALIDATION_PERMISSIVE
:
5045 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
5046 case SSL_CT_VALIDATION_STRICT
:
5047 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
5051 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
5053 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
5056 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
5058 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
5061 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
5063 CTLOG_STORE_free(ctx
->ctlog_store
);
5064 ctx
->ctlog_store
= logs
;
5067 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
5069 return ctx
->ctlog_store
;
5072 #endif /* OPENSSL_NO_CT */
5074 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
5077 c
->client_hello_cb
= cb
;
5078 c
->client_hello_cb_arg
= arg
;
5081 int SSL_client_hello_isv2(SSL
*s
)
5083 if (s
->clienthello
== NULL
)
5085 return s
->clienthello
->isv2
;
5088 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
5090 if (s
->clienthello
== NULL
)
5092 return s
->clienthello
->legacy_version
;
5095 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5097 if (s
->clienthello
== NULL
)
5100 *out
= s
->clienthello
->random
;
5101 return SSL3_RANDOM_SIZE
;
5104 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5106 if (s
->clienthello
== NULL
)
5109 *out
= s
->clienthello
->session_id
;
5110 return s
->clienthello
->session_id_len
;
5113 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5115 if (s
->clienthello
== NULL
)
5118 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5119 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5122 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5124 if (s
->clienthello
== NULL
)
5127 *out
= s
->clienthello
->compressions
;
5128 return s
->clienthello
->compressions_len
;
5131 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5137 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5139 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5140 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5144 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5145 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5146 ERR_R_MALLOC_FAILURE
);
5149 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5150 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5152 if (ext
->received_order
>= num
)
5154 present
[ext
->received_order
] = ext
->type
;
5161 OPENSSL_free(present
);
5165 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5171 if (s
->clienthello
== NULL
)
5173 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5174 r
= s
->clienthello
->pre_proc_exts
+ i
;
5175 if (r
->present
&& r
->type
== type
) {
5177 *out
= PACKET_data(&r
->data
);
5179 *outlen
= PACKET_remaining(&r
->data
);
5186 int SSL_free_buffers(SSL
*ssl
)
5188 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5190 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5193 RECORD_LAYER_release(rl
);
5197 int SSL_alloc_buffers(SSL
*ssl
)
5199 return ssl3_setup_buffers(ssl
);
5202 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5204 ctx
->keylog_callback
= cb
;
5207 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5209 return ctx
->keylog_callback
;
5212 static int nss_keylog_int(const char *prefix
,
5214 const uint8_t *parameter_1
,
5215 size_t parameter_1_len
,
5216 const uint8_t *parameter_2
,
5217 size_t parameter_2_len
)
5220 char *cursor
= NULL
;
5225 if (ssl
->ctx
->keylog_callback
== NULL
)
5229 * Our output buffer will contain the following strings, rendered with
5230 * space characters in between, terminated by a NULL character: first the
5231 * prefix, then the first parameter, then the second parameter. The
5232 * meaning of each parameter depends on the specific key material being
5233 * logged. Note that the first and second parameters are encoded in
5234 * hexadecimal, so we need a buffer that is twice their lengths.
5236 prefix_len
= strlen(prefix
);
5237 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
5238 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5239 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5240 ERR_R_MALLOC_FAILURE
);
5244 strcpy(cursor
, prefix
);
5245 cursor
+= prefix_len
;
5248 for (i
= 0; i
< parameter_1_len
; i
++) {
5249 sprintf(cursor
, "%02x", parameter_1
[i
]);
5254 for (i
= 0; i
< parameter_2_len
; i
++) {
5255 sprintf(cursor
, "%02x", parameter_2
[i
]);
5260 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5261 OPENSSL_clear_free(out
, out_len
);
5266 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5267 const uint8_t *encrypted_premaster
,
5268 size_t encrypted_premaster_len
,
5269 const uint8_t *premaster
,
5270 size_t premaster_len
)
5272 if (encrypted_premaster_len
< 8) {
5273 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5274 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5278 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5279 return nss_keylog_int("RSA",
5281 encrypted_premaster
,
5287 int ssl_log_secret(SSL
*ssl
,
5289 const uint8_t *secret
,
5292 return nss_keylog_int(label
,
5294 ssl
->s3
->client_random
,
5300 #define SSLV2_CIPHER_LEN 3
5302 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5306 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5308 if (PACKET_remaining(cipher_suites
) == 0) {
5309 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5310 SSL_R_NO_CIPHERS_SPECIFIED
);
5314 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5315 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5316 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5320 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5321 s
->s3
->tmp
.ciphers_raw
= NULL
;
5322 s
->s3
->tmp
.ciphers_rawlen
= 0;
5325 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5326 PACKET sslv2ciphers
= *cipher_suites
;
5327 unsigned int leadbyte
;
5331 * We store the raw ciphers list in SSLv3+ format so we need to do some
5332 * preprocessing to convert the list first. If there are any SSLv2 only
5333 * ciphersuites with a non-zero leading byte then we are going to
5334 * slightly over allocate because we won't store those. But that isn't a
5337 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5338 s
->s3
->tmp
.ciphers_raw
= raw
;
5340 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5341 ERR_R_MALLOC_FAILURE
);
5344 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5345 PACKET_remaining(&sslv2ciphers
) > 0;
5346 raw
+= TLS_CIPHER_LEN
) {
5347 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5349 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5352 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5353 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5355 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5356 s
->s3
->tmp
.ciphers_raw
= NULL
;
5357 s
->s3
->tmp
.ciphers_rawlen
= 0;
5361 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5363 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5364 &s
->s3
->tmp
.ciphers_rawlen
)) {
5365 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5366 ERR_R_INTERNAL_ERROR
);
5372 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5373 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5374 STACK_OF(SSL_CIPHER
) **scsvs
)
5378 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5380 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5383 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5384 STACK_OF(SSL_CIPHER
) **skp
,
5385 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5386 int sslv2format
, int fatal
)
5388 const SSL_CIPHER
*c
;
5389 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5390 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5392 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5393 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5395 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5397 if (PACKET_remaining(cipher_suites
) == 0) {
5399 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5400 SSL_R_NO_CIPHERS_SPECIFIED
);
5402 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5406 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5408 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5409 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5411 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5412 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5416 sk
= sk_SSL_CIPHER_new_null();
5417 scsvs
= sk_SSL_CIPHER_new_null();
5418 if (sk
== NULL
|| scsvs
== NULL
) {
5420 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5421 ERR_R_MALLOC_FAILURE
);
5423 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5427 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5429 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5430 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5431 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5433 if (sslv2format
&& cipher
[0] != '\0')
5436 /* For SSLv2-compat, ignore leading 0-byte. */
5437 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5439 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5440 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5442 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5443 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5445 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5450 if (PACKET_remaining(cipher_suites
) > 0) {
5452 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5455 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5462 sk_SSL_CIPHER_free(sk
);
5463 if (scsvs_out
!= NULL
)
5466 sk_SSL_CIPHER_free(scsvs
);
5469 sk_SSL_CIPHER_free(sk
);
5470 sk_SSL_CIPHER_free(scsvs
);
5474 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5476 ctx
->max_early_data
= max_early_data
;
5481 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5483 return ctx
->max_early_data
;
5486 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5488 s
->max_early_data
= max_early_data
;
5493 uint32_t SSL_get_max_early_data(const SSL
*s
)
5495 return s
->max_early_data
;
5498 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5500 ctx
->recv_max_early_data
= recv_max_early_data
;
5505 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5507 return ctx
->recv_max_early_data
;
5510 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5512 s
->recv_max_early_data
= recv_max_early_data
;
5517 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5519 return s
->recv_max_early_data
;
5522 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5524 /* Return any active Max Fragment Len extension */
5525 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5526 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5528 /* return current SSL connection setting */
5529 return ssl
->max_send_fragment
;
5532 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5534 /* Return a value regarding an active Max Fragment Len extension */
5535 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5536 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5537 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5539 /* else limit |split_send_fragment| to current |max_send_fragment| */
5540 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5541 return ssl
->max_send_fragment
;
5543 /* return current SSL connection setting */
5544 return ssl
->split_send_fragment
;
5547 int SSL_stateless(SSL
*s
)
5551 /* Ensure there is no state left over from a previous invocation */
5557 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5558 ret
= SSL_accept(s
);
5559 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5561 if (ret
> 0 && s
->ext
.cookieok
)
5564 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5570 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
5572 ctx
->pha_enabled
= val
;
5575 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
5577 ssl
->pha_enabled
= val
;
5580 int SSL_verify_client_post_handshake(SSL
*ssl
)
5582 if (!SSL_IS_TLS13(ssl
)) {
5583 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5587 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5591 if (!SSL_is_init_finished(ssl
)) {
5592 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5596 switch (ssl
->post_handshake_auth
) {
5598 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5601 case SSL_PHA_EXT_SENT
:
5602 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5604 case SSL_PHA_EXT_RECEIVED
:
5606 case SSL_PHA_REQUEST_PENDING
:
5607 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5609 case SSL_PHA_REQUESTED
:
5610 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5614 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5616 /* checks verify_mode and algorithm_auth */
5617 if (!send_certificate_request(ssl
)) {
5618 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5619 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5623 ossl_statem_set_in_init(ssl
, 1);
5627 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5628 SSL_CTX_generate_session_ticket_fn gen_cb
,
5629 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5632 ctx
->generate_ticket_cb
= gen_cb
;
5633 ctx
->decrypt_ticket_cb
= dec_cb
;
5634 ctx
->ticket_cb_data
= arg
;
5638 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5639 SSL_allow_early_data_cb_fn cb
,
5642 ctx
->allow_early_data_cb
= cb
;
5643 ctx
->allow_early_data_cb_data
= arg
;
5646 void SSL_set_allow_early_data_cb(SSL
*s
,
5647 SSL_allow_early_data_cb_fn cb
,
5650 s
->allow_early_data_cb
= cb
;
5651 s
->allow_early_data_cb_data
= arg
;