2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the OpenSSL license (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
14 #include <openssl/objects.h>
15 #include <openssl/lhash.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.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>
24 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
26 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
28 * evil casts, but these functions are only called if there's a library
31 (int (*)(SSL
*, SSL3_RECORD
*, size_t, int))ssl_undefined_function
,
32 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
33 ssl_undefined_function
,
34 (int (*)(SSL
*, unsigned char *, unsigned char *, size_t, size_t *))
35 ssl_undefined_function
,
36 (int (*)(SSL
*, int))ssl_undefined_function
,
37 (size_t (*)(SSL
*, const char *, size_t, unsigned char *))
38 ssl_undefined_function
,
39 NULL
, /* client_finished_label */
40 0, /* client_finished_label_len */
41 NULL
, /* server_finished_label */
42 0, /* server_finished_label_len */
43 (int (*)(int))ssl_undefined_function
,
44 (int (*)(SSL
*, unsigned char *, size_t, const char *,
45 size_t, const unsigned char *, size_t,
46 int use_context
))ssl_undefined_function
,
49 struct ssl_async_args
{
53 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
55 int (*func_read
) (SSL
*, void *, size_t, size_t *);
56 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
57 int (*func_other
) (SSL
*);
67 DANETLS_MATCHING_FULL
, 0, NID_undef
70 DANETLS_MATCHING_2256
, 1, NID_sha256
73 DANETLS_MATCHING_2512
, 2, NID_sha512
77 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
81 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
82 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
85 if (dctx
->mdevp
!= NULL
)
88 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
89 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
91 if (mdord
== NULL
|| mdevp
== NULL
) {
94 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
98 /* Install default entries */
99 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
102 if (dane_mds
[i
].nid
== NID_undef
||
103 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
105 mdevp
[dane_mds
[i
].mtype
] = md
;
106 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
116 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
118 OPENSSL_free(dctx
->mdevp
);
121 OPENSSL_free(dctx
->mdord
);
126 static void tlsa_free(danetls_record
*t
)
130 OPENSSL_free(t
->data
);
131 EVP_PKEY_free(t
->spki
);
135 static void dane_final(SSL_DANE
*dane
)
137 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
140 sk_X509_pop_free(dane
->certs
, X509_free
);
143 X509_free(dane
->mcert
);
151 * dane_copy - Copy dane configuration, sans verification state.
153 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
158 if (!DANETLS_ENABLED(&from
->dane
))
161 dane_final(&to
->dane
);
162 to
->dane
.flags
= from
->dane
.flags
;
163 to
->dane
.dctx
= &to
->ctx
->dane
;
164 to
->dane
.trecs
= sk_danetls_record_new_null();
166 if (to
->dane
.trecs
== NULL
) {
167 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
171 num
= sk_danetls_record_num(from
->dane
.trecs
);
172 for (i
= 0; i
< num
; ++i
) {
173 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
175 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
176 t
->data
, t
->dlen
) <= 0)
182 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
183 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
187 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
188 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
192 if (mtype
> dctx
->mdmax
) {
193 const EVP_MD
**mdevp
;
195 int n
= ((int)mtype
) + 1;
197 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
199 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
204 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
206 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
211 /* Zero-fill any gaps */
212 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
220 dctx
->mdevp
[mtype
] = md
;
221 /* Coerce ordinal of disabled matching types to 0 */
222 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
227 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
229 if (mtype
> dane
->dctx
->mdmax
)
231 return dane
->dctx
->mdevp
[mtype
];
234 static int dane_tlsa_add(SSL_DANE
*dane
,
237 uint8_t mtype
, unsigned char *data
, size_t dlen
)
240 const EVP_MD
*md
= NULL
;
241 int ilen
= (int)dlen
;
245 if (dane
->trecs
== NULL
) {
246 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
250 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
251 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
255 if (usage
> DANETLS_USAGE_LAST
) {
256 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
260 if (selector
> DANETLS_SELECTOR_LAST
) {
261 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
265 if (mtype
!= DANETLS_MATCHING_FULL
) {
266 md
= tlsa_md_get(dane
, mtype
);
268 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
273 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
274 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
278 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
282 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
283 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
288 t
->selector
= selector
;
290 t
->data
= OPENSSL_malloc(dlen
);
291 if (t
->data
== NULL
) {
293 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
296 memcpy(t
->data
, data
, dlen
);
299 /* Validate and cache full certificate or public key */
300 if (mtype
== DANETLS_MATCHING_FULL
) {
301 const unsigned char *p
= data
;
303 EVP_PKEY
*pkey
= NULL
;
306 case DANETLS_SELECTOR_CERT
:
307 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
308 dlen
!= (size_t)(p
- data
)) {
310 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
313 if (X509_get0_pubkey(cert
) == NULL
) {
315 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
319 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
325 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
326 * records that contain full certificates of trust-anchors that are
327 * not present in the wire chain. For usage PKIX-TA(0), we augment
328 * the chain with untrusted Full(0) certificates from DNS, in case
329 * they are missing from the chain.
331 if ((dane
->certs
== NULL
&&
332 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
333 !sk_X509_push(dane
->certs
, cert
)) {
334 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
341 case DANETLS_SELECTOR_SPKI
:
342 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
343 dlen
!= (size_t)(p
- data
)) {
345 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
350 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
351 * records that contain full bare keys of trust-anchors that are
352 * not present in the wire chain.
354 if (usage
== DANETLS_USAGE_DANE_TA
)
363 * Find the right insertion point for the new record.
365 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
366 * they can be processed first, as they require no chain building, and no
367 * expiration or hostname checks. Because DANE-EE(3) is numerically
368 * largest, this is accomplished via descending sort by "usage".
370 * We also sort in descending order by matching ordinal to simplify
371 * the implementation of digest agility in the verification code.
373 * The choice of order for the selector is not significant, so we
374 * use the same descending order for consistency.
376 num
= sk_danetls_record_num(dane
->trecs
);
377 for (i
= 0; i
< num
; ++i
) {
378 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
380 if (rec
->usage
> usage
)
382 if (rec
->usage
< usage
)
384 if (rec
->selector
> selector
)
386 if (rec
->selector
< selector
)
388 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
393 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
395 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
398 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
404 * Return 0 if there is only one version configured and it was disabled
405 * at configure time. Return 1 otherwise.
407 static int ssl_check_allowed_versions(int min_version
, int max_version
)
409 int minisdtls
= 0, maxisdtls
= 0;
411 /* Figure out if we're doing DTLS versions or TLS versions */
412 if (min_version
== DTLS1_BAD_VER
413 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
415 if (max_version
== DTLS1_BAD_VER
416 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
418 /* A wildcard version of 0 could be DTLS or TLS. */
419 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
420 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
421 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
425 if (minisdtls
|| maxisdtls
) {
426 /* Do DTLS version checks. */
427 if (min_version
== 0)
428 /* Ignore DTLS1_BAD_VER */
429 min_version
= DTLS1_VERSION
;
430 if (max_version
== 0)
431 max_version
= DTLS1_2_VERSION
;
432 #ifdef OPENSSL_NO_DTLS1_2
433 if (max_version
== DTLS1_2_VERSION
)
434 max_version
= DTLS1_VERSION
;
436 #ifdef OPENSSL_NO_DTLS1
437 if (min_version
== DTLS1_VERSION
)
438 min_version
= DTLS1_2_VERSION
;
440 /* Done massaging versions; do the check. */
442 #ifdef OPENSSL_NO_DTLS1
443 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
444 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
446 #ifdef OPENSSL_NO_DTLS1_2
447 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
448 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
453 /* Regular TLS version checks. */
454 if (min_version
== 0)
455 min_version
= SSL3_VERSION
;
456 if (max_version
== 0)
457 max_version
= TLS1_3_VERSION
;
458 #ifdef OPENSSL_NO_TLS1_3
459 if (max_version
== TLS1_3_VERSION
)
460 max_version
= TLS1_2_VERSION
;
462 #ifdef OPENSSL_NO_TLS1_2
463 if (max_version
== TLS1_2_VERSION
)
464 max_version
= TLS1_1_VERSION
;
466 #ifdef OPENSSL_NO_TLS1_1
467 if (max_version
== TLS1_1_VERSION
)
468 max_version
= TLS1_VERSION
;
470 #ifdef OPENSSL_NO_TLS1
471 if (max_version
== TLS1_VERSION
)
472 max_version
= SSL3_VERSION
;
474 #ifdef OPENSSL_NO_SSL3
475 if (min_version
== SSL3_VERSION
)
476 min_version
= TLS1_VERSION
;
478 #ifdef OPENSSL_NO_TLS1
479 if (min_version
== TLS1_VERSION
)
480 min_version
= TLS1_1_VERSION
;
482 #ifdef OPENSSL_NO_TLS1_1
483 if (min_version
== TLS1_1_VERSION
)
484 min_version
= TLS1_2_VERSION
;
486 #ifdef OPENSSL_NO_TLS1_2
487 if (min_version
== TLS1_2_VERSION
)
488 min_version
= TLS1_3_VERSION
;
490 /* Done massaging versions; do the check. */
492 #ifdef OPENSSL_NO_SSL3
493 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
495 #ifdef OPENSSL_NO_TLS1
496 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
498 #ifdef OPENSSL_NO_TLS1_1
499 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
501 #ifdef OPENSSL_NO_TLS1_2
502 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
504 #ifdef OPENSSL_NO_TLS1_3
505 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
513 static void clear_ciphers(SSL
*s
)
515 /* clear the current cipher */
516 ssl_clear_cipher_ctx(s
);
517 ssl_clear_hash_ctx(&s
->read_hash
);
518 ssl_clear_hash_ctx(&s
->write_hash
);
521 int SSL_clear(SSL
*s
)
523 if (s
->method
== NULL
) {
524 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
528 if (ssl_clear_bad_session(s
)) {
529 SSL_SESSION_free(s
->session
);
532 SSL_SESSION_free(s
->psksession
);
533 s
->psksession
= NULL
;
539 if (s
->renegotiate
) {
540 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
544 ossl_statem_clear(s
);
546 s
->version
= s
->method
->version
;
547 s
->client_version
= s
->version
;
548 s
->rwstate
= SSL_NOTHING
;
550 BUF_MEM_free(s
->init_buf
);
555 s
->key_update
= SSL_KEY_UPDATE_NONE
;
557 /* Reset DANE verification result state */
560 X509_free(s
->dane
.mcert
);
561 s
->dane
.mcert
= NULL
;
562 s
->dane
.mtlsa
= NULL
;
564 /* Clear the verification result peername */
565 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
568 * Check to see if we were changed into a different method, if so, revert
571 if (s
->method
!= s
->ctx
->method
) {
572 s
->method
->ssl_free(s
);
573 s
->method
= s
->ctx
->method
;
574 if (!s
->method
->ssl_new(s
))
577 if (!s
->method
->ssl_clear(s
))
581 RECORD_LAYER_clear(&s
->rlayer
);
586 /** Used to change an SSL_CTXs default SSL method type */
587 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
589 STACK_OF(SSL_CIPHER
) *sk
;
593 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
594 &(ctx
->cipher_list_by_id
),
595 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
596 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
597 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
603 SSL
*SSL_new(SSL_CTX
*ctx
)
608 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
611 if (ctx
->method
== NULL
) {
612 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
616 s
= OPENSSL_zalloc(sizeof(*s
));
620 s
->lock
= CRYPTO_THREAD_lock_new();
621 if (s
->lock
== NULL
) {
622 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
627 RECORD_LAYER_init(&s
->rlayer
, s
);
629 s
->options
= ctx
->options
;
630 s
->dane
.flags
= ctx
->dane
.flags
;
631 s
->min_proto_version
= ctx
->min_proto_version
;
632 s
->max_proto_version
= ctx
->max_proto_version
;
634 s
->max_cert_list
= ctx
->max_cert_list
;
636 s
->max_early_data
= ctx
->max_early_data
;
639 * Earlier library versions used to copy the pointer to the CERT, not
640 * its contents; only when setting new parameters for the per-SSL
641 * copy, ssl_cert_new would be called (and the direct reference to
642 * the per-SSL_CTX settings would be lost, but those still were
643 * indirectly accessed for various purposes, and for that reason they
644 * used to be known as s->ctx->default_cert). Now we don't look at the
645 * SSL_CTX's CERT after having duplicated it once.
647 s
->cert
= ssl_cert_dup(ctx
->cert
);
651 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
652 s
->msg_callback
= ctx
->msg_callback
;
653 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
654 s
->verify_mode
= ctx
->verify_mode
;
655 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
656 s
->record_padding_cb
= ctx
->record_padding_cb
;
657 s
->record_padding_arg
= ctx
->record_padding_arg
;
658 s
->block_padding
= ctx
->block_padding
;
659 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
660 if (!ossl_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
))
662 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
663 s
->verify_callback
= ctx
->default_verify_callback
;
664 s
->generate_session_id
= ctx
->generate_session_id
;
666 s
->param
= X509_VERIFY_PARAM_new();
667 if (s
->param
== NULL
)
669 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
670 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
671 s
->max_send_fragment
= ctx
->max_send_fragment
;
672 s
->split_send_fragment
= ctx
->split_send_fragment
;
673 s
->max_pipelines
= ctx
->max_pipelines
;
674 if (s
->max_pipelines
> 1)
675 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
676 if (ctx
->default_read_buf_len
> 0)
677 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
682 s
->ext
.debug_arg
= NULL
;
683 s
->ext
.ticket_expected
= 0;
684 s
->ext
.status_type
= ctx
->ext
.status_type
;
685 s
->ext
.status_expected
= 0;
686 s
->ext
.ocsp
.ids
= NULL
;
687 s
->ext
.ocsp
.exts
= NULL
;
688 s
->ext
.ocsp
.resp
= NULL
;
689 s
->ext
.ocsp
.resp_len
= 0;
691 s
->session_ctx
= ctx
;
692 #ifndef OPENSSL_NO_EC
693 if (ctx
->ext
.ecpointformats
) {
694 s
->ext
.ecpointformats
=
695 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
696 ctx
->ext
.ecpointformats_len
);
697 if (!s
->ext
.ecpointformats
)
699 s
->ext
.ecpointformats_len
=
700 ctx
->ext
.ecpointformats_len
;
702 if (ctx
->ext
.supportedgroups
) {
703 s
->ext
.supportedgroups
=
704 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
705 ctx
->ext
.supportedgroups_len
);
706 if (!s
->ext
.supportedgroups
)
708 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
711 #ifndef OPENSSL_NO_NEXTPROTONEG
715 if (s
->ctx
->ext
.alpn
) {
716 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
717 if (s
->ext
.alpn
== NULL
)
719 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
720 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
723 s
->verified_chain
= NULL
;
724 s
->verify_result
= X509_V_OK
;
726 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
727 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
729 s
->method
= ctx
->method
;
731 s
->key_update
= SSL_KEY_UPDATE_NONE
;
733 if (!s
->method
->ssl_new(s
))
736 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
741 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
744 #ifndef OPENSSL_NO_PSK
745 s
->psk_client_callback
= ctx
->psk_client_callback
;
746 s
->psk_server_callback
= ctx
->psk_server_callback
;
748 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
749 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
753 #ifndef OPENSSL_NO_CT
754 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
755 ctx
->ct_validation_callback_arg
))
762 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
766 int SSL_is_dtls(const SSL
*s
)
768 return SSL_IS_DTLS(s
) ? 1 : 0;
771 int SSL_up_ref(SSL
*s
)
775 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
778 REF_PRINT_COUNT("SSL", s
);
779 REF_ASSERT_ISNT(i
< 2);
780 return ((i
> 1) ? 1 : 0);
783 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
784 unsigned int sid_ctx_len
)
786 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
787 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
788 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
791 ctx
->sid_ctx_length
= sid_ctx_len
;
792 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
797 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
798 unsigned int sid_ctx_len
)
800 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
801 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
802 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
805 ssl
->sid_ctx_length
= sid_ctx_len
;
806 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
811 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
813 CRYPTO_THREAD_write_lock(ctx
->lock
);
814 ctx
->generate_session_id
= cb
;
815 CRYPTO_THREAD_unlock(ctx
->lock
);
819 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
821 CRYPTO_THREAD_write_lock(ssl
->lock
);
822 ssl
->generate_session_id
= cb
;
823 CRYPTO_THREAD_unlock(ssl
->lock
);
827 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
831 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
832 * we can "construct" a session to give us the desired check - i.e. to
833 * find if there's a session in the hash table that would conflict with
834 * any new session built out of this id/id_len and the ssl_version in use
839 if (id_len
> sizeof r
.session_id
)
842 r
.ssl_version
= ssl
->version
;
843 r
.session_id_length
= id_len
;
844 memcpy(r
.session_id
, id
, id_len
);
846 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
847 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
848 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
852 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
854 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
857 int SSL_set_purpose(SSL
*s
, int purpose
)
859 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
862 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
864 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
867 int SSL_set_trust(SSL
*s
, int trust
)
869 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
872 int SSL_set1_host(SSL
*s
, const char *hostname
)
874 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
877 int SSL_add1_host(SSL
*s
, const char *hostname
)
879 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
882 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
884 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
887 const char *SSL_get0_peername(SSL
*s
)
889 return X509_VERIFY_PARAM_get0_peername(s
->param
);
892 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
894 return dane_ctx_enable(&ctx
->dane
);
897 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
899 unsigned long orig
= ctx
->dane
.flags
;
901 ctx
->dane
.flags
|= flags
;
905 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
907 unsigned long orig
= ctx
->dane
.flags
;
909 ctx
->dane
.flags
&= ~flags
;
913 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
915 SSL_DANE
*dane
= &s
->dane
;
917 if (s
->ctx
->dane
.mdmax
== 0) {
918 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
921 if (dane
->trecs
!= NULL
) {
922 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
927 * Default SNI name. This rejects empty names, while set1_host below
928 * accepts them and disables host name checks. To avoid side-effects with
929 * invalid input, set the SNI name first.
931 if (s
->ext
.hostname
== NULL
) {
932 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
933 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
938 /* Primary RFC6125 reference identifier */
939 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
940 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
946 dane
->dctx
= &s
->ctx
->dane
;
947 dane
->trecs
= sk_danetls_record_new_null();
949 if (dane
->trecs
== NULL
) {
950 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
956 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
958 unsigned long orig
= ssl
->dane
.flags
;
960 ssl
->dane
.flags
|= flags
;
964 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
966 unsigned long orig
= ssl
->dane
.flags
;
968 ssl
->dane
.flags
&= ~flags
;
972 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
974 SSL_DANE
*dane
= &s
->dane
;
976 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
980 *mcert
= dane
->mcert
;
982 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
987 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
988 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
990 SSL_DANE
*dane
= &s
->dane
;
992 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
996 *usage
= dane
->mtlsa
->usage
;
998 *selector
= dane
->mtlsa
->selector
;
1000 *mtype
= dane
->mtlsa
->mtype
;
1002 *data
= dane
->mtlsa
->data
;
1004 *dlen
= dane
->mtlsa
->dlen
;
1009 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1014 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1015 uint8_t mtype
, unsigned char *data
, size_t dlen
)
1017 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1020 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1023 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1026 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1028 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1031 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1033 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1036 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1041 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1046 void SSL_certs_clear(SSL
*s
)
1048 ssl_cert_clear_certs(s
->cert
);
1051 void SSL_free(SSL
*s
)
1058 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1059 REF_PRINT_COUNT("SSL", s
);
1062 REF_ASSERT_ISNT(i
< 0);
1064 X509_VERIFY_PARAM_free(s
->param
);
1065 dane_final(&s
->dane
);
1066 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1068 /* Ignore return value */
1069 ssl_free_wbio_buffer(s
);
1071 BIO_free_all(s
->wbio
);
1072 BIO_free_all(s
->rbio
);
1074 BUF_MEM_free(s
->init_buf
);
1076 /* add extra stuff */
1077 sk_SSL_CIPHER_free(s
->cipher_list
);
1078 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1080 /* Make the next call work :-) */
1081 if (s
->session
!= NULL
) {
1082 ssl_clear_bad_session(s
);
1083 SSL_SESSION_free(s
->session
);
1085 SSL_SESSION_free(s
->psksession
);
1089 ssl_cert_free(s
->cert
);
1090 /* Free up if allocated */
1092 OPENSSL_free(s
->ext
.hostname
);
1093 SSL_CTX_free(s
->session_ctx
);
1094 #ifndef OPENSSL_NO_EC
1095 OPENSSL_free(s
->ext
.ecpointformats
);
1096 OPENSSL_free(s
->ext
.supportedgroups
);
1097 #endif /* OPENSSL_NO_EC */
1098 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1099 #ifndef OPENSSL_NO_OCSP
1100 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1102 #ifndef OPENSSL_NO_CT
1103 SCT_LIST_free(s
->scts
);
1104 OPENSSL_free(s
->ext
.scts
);
1106 OPENSSL_free(s
->ext
.ocsp
.resp
);
1107 OPENSSL_free(s
->ext
.alpn
);
1108 OPENSSL_free(s
->ext
.tls13_cookie
);
1109 OPENSSL_free(s
->clienthello
);
1111 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1113 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1115 if (s
->method
!= NULL
)
1116 s
->method
->ssl_free(s
);
1118 RECORD_LAYER_release(&s
->rlayer
);
1120 SSL_CTX_free(s
->ctx
);
1122 ASYNC_WAIT_CTX_free(s
->waitctx
);
1124 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1125 OPENSSL_free(s
->ext
.npn
);
1128 #ifndef OPENSSL_NO_SRTP
1129 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1132 CRYPTO_THREAD_lock_free(s
->lock
);
1137 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1139 BIO_free_all(s
->rbio
);
1143 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1146 * If the output buffering BIO is still in place, remove it
1148 if (s
->bbio
!= NULL
)
1149 s
->wbio
= BIO_pop(s
->wbio
);
1151 BIO_free_all(s
->wbio
);
1154 /* Re-attach |bbio| to the new |wbio|. */
1155 if (s
->bbio
!= NULL
)
1156 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1159 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1162 * For historical reasons, this function has many different cases in
1163 * ownership handling.
1166 /* If nothing has changed, do nothing */
1167 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1171 * If the two arguments are equal then one fewer reference is granted by the
1172 * caller than we want to take
1174 if (rbio
!= NULL
&& rbio
== wbio
)
1178 * If only the wbio is changed only adopt one reference.
1180 if (rbio
== SSL_get_rbio(s
)) {
1181 SSL_set0_wbio(s
, wbio
);
1185 * There is an asymmetry here for historical reasons. If only the rbio is
1186 * changed AND the rbio and wbio were originally different, then we only
1187 * adopt one reference.
1189 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1190 SSL_set0_rbio(s
, rbio
);
1194 /* Otherwise, adopt both references. */
1195 SSL_set0_rbio(s
, rbio
);
1196 SSL_set0_wbio(s
, wbio
);
1199 BIO
*SSL_get_rbio(const SSL
*s
)
1204 BIO
*SSL_get_wbio(const SSL
*s
)
1206 if (s
->bbio
!= NULL
) {
1208 * If |bbio| is active, the true caller-configured BIO is its
1211 return BIO_next(s
->bbio
);
1216 int SSL_get_fd(const SSL
*s
)
1218 return SSL_get_rfd(s
);
1221 int SSL_get_rfd(const SSL
*s
)
1226 b
= SSL_get_rbio(s
);
1227 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1229 BIO_get_fd(r
, &ret
);
1233 int SSL_get_wfd(const SSL
*s
)
1238 b
= SSL_get_wbio(s
);
1239 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1241 BIO_get_fd(r
, &ret
);
1245 #ifndef OPENSSL_NO_SOCK
1246 int SSL_set_fd(SSL
*s
, int fd
)
1251 bio
= BIO_new(BIO_s_socket());
1254 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1257 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1258 SSL_set_bio(s
, bio
, bio
);
1264 int SSL_set_wfd(SSL
*s
, int fd
)
1266 BIO
*rbio
= SSL_get_rbio(s
);
1268 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1269 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1270 BIO
*bio
= BIO_new(BIO_s_socket());
1273 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1276 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1277 SSL_set0_wbio(s
, bio
);
1280 SSL_set0_wbio(s
, rbio
);
1285 int SSL_set_rfd(SSL
*s
, int fd
)
1287 BIO
*wbio
= SSL_get_wbio(s
);
1289 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1290 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1291 BIO
*bio
= BIO_new(BIO_s_socket());
1294 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1297 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1298 SSL_set0_rbio(s
, bio
);
1301 SSL_set0_rbio(s
, wbio
);
1308 /* return length of latest Finished message we sent, copy to 'buf' */
1309 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1313 if (s
->s3
!= NULL
) {
1314 ret
= s
->s3
->tmp
.finish_md_len
;
1317 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1322 /* return length of latest Finished message we expected, copy to 'buf' */
1323 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1327 if (s
->s3
!= NULL
) {
1328 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1331 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1336 int SSL_get_verify_mode(const SSL
*s
)
1338 return (s
->verify_mode
);
1341 int SSL_get_verify_depth(const SSL
*s
)
1343 return X509_VERIFY_PARAM_get_depth(s
->param
);
1346 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1347 return (s
->verify_callback
);
1350 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1352 return (ctx
->verify_mode
);
1355 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1357 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1360 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1361 return (ctx
->default_verify_callback
);
1364 void SSL_set_verify(SSL
*s
, int mode
,
1365 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1367 s
->verify_mode
= mode
;
1368 if (callback
!= NULL
)
1369 s
->verify_callback
= callback
;
1372 void SSL_set_verify_depth(SSL
*s
, int depth
)
1374 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1377 void SSL_set_read_ahead(SSL
*s
, int yes
)
1379 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1382 int SSL_get_read_ahead(const SSL
*s
)
1384 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1387 int SSL_pending(const SSL
*s
)
1389 size_t pending
= s
->method
->ssl_pending(s
);
1392 * SSL_pending cannot work properly if read-ahead is enabled
1393 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1394 * impossible to fix since SSL_pending cannot report errors that may be
1395 * observed while scanning the new data. (Note that SSL_pending() is
1396 * often used as a boolean value, so we'd better not return -1.)
1398 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1399 * we just return INT_MAX.
1401 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1404 int SSL_has_pending(const SSL
*s
)
1407 * Similar to SSL_pending() but returns a 1 to indicate that we have
1408 * unprocessed data available or 0 otherwise (as opposed to the number of
1409 * bytes available). Unlike SSL_pending() this will take into account
1410 * read_ahead data. A 1 return simply indicates that we have unprocessed
1411 * data. That data may not result in any application data, or we may fail
1412 * to parse the records for some reason.
1414 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1417 return RECORD_LAYER_read_pending(&s
->rlayer
);
1420 X509
*SSL_get_peer_certificate(const SSL
*s
)
1424 if ((s
== NULL
) || (s
->session
== NULL
))
1427 r
= s
->session
->peer
;
1437 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1441 if ((s
== NULL
) || (s
->session
== NULL
))
1444 r
= s
->session
->peer_chain
;
1447 * If we are a client, cert_chain includes the peer's own certificate; if
1448 * we are a server, it does not.
1455 * Now in theory, since the calling process own 't' it should be safe to
1456 * modify. We need to be able to read f without being hassled
1458 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1461 /* Do we need to to SSL locking? */
1462 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1467 * what if we are setup for one protocol version but want to talk another
1469 if (t
->method
!= f
->method
) {
1470 t
->method
->ssl_free(t
);
1471 t
->method
= f
->method
;
1472 if (t
->method
->ssl_new(t
) == 0)
1476 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1477 ssl_cert_free(t
->cert
);
1479 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1486 /* Fix this so it checks all the valid key/cert options */
1487 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1489 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1490 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1493 if (ctx
->cert
->key
->privatekey
== NULL
) {
1494 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1497 return (X509_check_private_key
1498 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1501 /* Fix this function so that it takes an optional type parameter */
1502 int SSL_check_private_key(const SSL
*ssl
)
1505 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1508 if (ssl
->cert
->key
->x509
== NULL
) {
1509 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1512 if (ssl
->cert
->key
->privatekey
== NULL
) {
1513 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1516 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1517 ssl
->cert
->key
->privatekey
));
1520 int SSL_waiting_for_async(SSL
*s
)
1528 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1530 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1534 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1537 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1538 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1540 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1544 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1548 int SSL_accept(SSL
*s
)
1550 if (s
->handshake_func
== NULL
) {
1551 /* Not properly initialized yet */
1552 SSL_set_accept_state(s
);
1555 return SSL_do_handshake(s
);
1558 int SSL_connect(SSL
*s
)
1560 if (s
->handshake_func
== NULL
) {
1561 /* Not properly initialized yet */
1562 SSL_set_connect_state(s
);
1565 return SSL_do_handshake(s
);
1568 long SSL_get_default_timeout(const SSL
*s
)
1570 return (s
->method
->get_timeout());
1573 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1574 int (*func
) (void *))
1577 if (s
->waitctx
== NULL
) {
1578 s
->waitctx
= ASYNC_WAIT_CTX_new();
1579 if (s
->waitctx
== NULL
)
1582 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1583 sizeof(struct ssl_async_args
))) {
1585 s
->rwstate
= SSL_NOTHING
;
1586 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1589 s
->rwstate
= SSL_ASYNC_PAUSED
;
1592 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1598 s
->rwstate
= SSL_NOTHING
;
1599 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1600 /* Shouldn't happen */
1605 static int ssl_io_intern(void *vargs
)
1607 struct ssl_async_args
*args
;
1612 args
= (struct ssl_async_args
*)vargs
;
1616 switch (args
->type
) {
1618 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1620 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1622 return args
->f
.func_other(s
);
1627 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1629 if (s
->handshake_func
== NULL
) {
1630 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1634 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1635 s
->rwstate
= SSL_NOTHING
;
1639 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1640 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1641 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1645 * If we are a client and haven't received the ServerHello etc then we
1648 ossl_statem_check_finish_init(s
, 0);
1650 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1651 struct ssl_async_args args
;
1657 args
.type
= READFUNC
;
1658 args
.f
.func_read
= s
->method
->ssl_read
;
1660 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1661 *readbytes
= s
->asyncrw
;
1664 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1668 int SSL_read(SSL
*s
, void *buf
, int num
)
1674 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1678 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1681 * The cast is safe here because ret should be <= INT_MAX because num is
1685 ret
= (int)readbytes
;
1690 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1692 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1699 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1704 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1705 return SSL_READ_EARLY_DATA_ERROR
;
1708 switch (s
->early_data_state
) {
1709 case SSL_EARLY_DATA_NONE
:
1710 if (!SSL_in_before(s
)) {
1711 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1712 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1713 return SSL_READ_EARLY_DATA_ERROR
;
1717 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1718 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1719 ret
= SSL_accept(s
);
1722 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1723 return SSL_READ_EARLY_DATA_ERROR
;
1727 case SSL_EARLY_DATA_READ_RETRY
:
1728 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1729 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1730 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1732 * State machine will update early_data_state to
1733 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1736 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1737 != SSL_EARLY_DATA_FINISHED_READING
)) {
1738 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1739 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1740 : SSL_READ_EARLY_DATA_ERROR
;
1743 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1746 return SSL_READ_EARLY_DATA_FINISH
;
1749 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1750 return SSL_READ_EARLY_DATA_ERROR
;
1754 int SSL_get_early_data_status(const SSL
*s
)
1756 return s
->ext
.early_data
;
1759 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1761 if (s
->handshake_func
== NULL
) {
1762 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1766 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1769 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1770 struct ssl_async_args args
;
1776 args
.type
= READFUNC
;
1777 args
.f
.func_read
= s
->method
->ssl_peek
;
1779 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1780 *readbytes
= s
->asyncrw
;
1783 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1787 int SSL_peek(SSL
*s
, void *buf
, int num
)
1793 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1797 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1800 * The cast is safe here because ret should be <= INT_MAX because num is
1804 ret
= (int)readbytes
;
1810 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1812 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1819 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1821 if (s
->handshake_func
== NULL
) {
1822 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1826 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1827 s
->rwstate
= SSL_NOTHING
;
1828 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1832 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1833 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1834 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1835 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1838 /* If we are a client and haven't sent the Finished we better do that */
1839 ossl_statem_check_finish_init(s
, 1);
1841 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1843 struct ssl_async_args args
;
1846 args
.buf
= (void *)buf
;
1848 args
.type
= WRITEFUNC
;
1849 args
.f
.func_write
= s
->method
->ssl_write
;
1851 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1852 *written
= s
->asyncrw
;
1855 return s
->method
->ssl_write(s
, buf
, num
, written
);
1859 int SSL_write(SSL
*s
, const void *buf
, int num
)
1865 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1869 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1872 * The cast is safe here because ret should be <= INT_MAX because num is
1881 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1883 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1890 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1892 int ret
, early_data_state
;
1894 switch (s
->early_data_state
) {
1895 case SSL_EARLY_DATA_NONE
:
1897 || !SSL_in_before(s
)
1898 || s
->session
== NULL
1899 || s
->session
->ext
.max_early_data
== 0) {
1900 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1901 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1906 case SSL_EARLY_DATA_CONNECT_RETRY
:
1907 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1908 ret
= SSL_connect(s
);
1911 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1916 case SSL_EARLY_DATA_WRITE_RETRY
:
1917 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1918 ret
= SSL_write_ex(s
, buf
, num
, written
);
1919 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
1922 case SSL_EARLY_DATA_FINISHED_READING
:
1923 case SSL_EARLY_DATA_READ_RETRY
:
1924 early_data_state
= s
->early_data_state
;
1925 /* We are a server writing to an unauthenticated client */
1926 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
1927 ret
= SSL_write_ex(s
, buf
, num
, written
);
1928 s
->early_data_state
= early_data_state
;
1932 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1937 int SSL_shutdown(SSL
*s
)
1940 * Note that this function behaves differently from what one might
1941 * expect. Return values are 0 for no success (yet), 1 for success; but
1942 * calling it once is usually not enough, even if blocking I/O is used
1943 * (see ssl3_shutdown).
1946 if (s
->handshake_func
== NULL
) {
1947 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1951 if (!SSL_in_init(s
)) {
1952 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1953 struct ssl_async_args args
;
1956 args
.type
= OTHERFUNC
;
1957 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1959 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1961 return s
->method
->ssl_shutdown(s
);
1964 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1969 int SSL_key_update(SSL
*s
, int updatetype
)
1972 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
1973 * negotiated, and that it is appropriate to call SSL_key_update() instead
1974 * of SSL_renegotiate().
1976 if (!SSL_IS_TLS13(s
)) {
1977 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
1981 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
1982 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
1983 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
1987 if (!SSL_is_init_finished(s
)) {
1988 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
1992 ossl_statem_set_in_init(s
, 1);
1993 s
->key_update
= updatetype
;
1997 int SSL_get_key_update_type(SSL
*s
)
1999 return s
->key_update
;
2002 int SSL_renegotiate(SSL
*s
)
2004 if (SSL_IS_TLS13(s
)) {
2005 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2009 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2010 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2017 return (s
->method
->ssl_renegotiate(s
));
2020 int SSL_renegotiate_abbreviated(SSL
*s
)
2022 if (SSL_IS_TLS13(s
)) {
2023 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2027 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2028 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2035 return (s
->method
->ssl_renegotiate(s
));
2038 int SSL_renegotiate_pending(SSL
*s
)
2041 * becomes true when negotiation is requested; false again once a
2042 * handshake has finished
2044 return (s
->renegotiate
!= 0);
2047 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2052 case SSL_CTRL_GET_READ_AHEAD
:
2053 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
2054 case SSL_CTRL_SET_READ_AHEAD
:
2055 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2056 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2059 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2060 s
->msg_callback_arg
= parg
;
2064 return (s
->mode
|= larg
);
2065 case SSL_CTRL_CLEAR_MODE
:
2066 return (s
->mode
&= ~larg
);
2067 case SSL_CTRL_GET_MAX_CERT_LIST
:
2068 return (long)(s
->max_cert_list
);
2069 case SSL_CTRL_SET_MAX_CERT_LIST
:
2072 l
= (long)s
->max_cert_list
;
2073 s
->max_cert_list
= (size_t)larg
;
2075 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2076 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2078 s
->max_send_fragment
= larg
;
2079 if (s
->max_send_fragment
< s
->split_send_fragment
)
2080 s
->split_send_fragment
= s
->max_send_fragment
;
2082 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2083 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2085 s
->split_send_fragment
= larg
;
2087 case SSL_CTRL_SET_MAX_PIPELINES
:
2088 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2090 s
->max_pipelines
= larg
;
2092 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2094 case SSL_CTRL_GET_RI_SUPPORT
:
2096 return s
->s3
->send_connection_binding
;
2099 case SSL_CTRL_CERT_FLAGS
:
2100 return (s
->cert
->cert_flags
|= larg
);
2101 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2102 return (s
->cert
->cert_flags
&= ~larg
);
2104 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2106 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2108 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2109 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2111 return TLS_CIPHER_LEN
;
2113 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2114 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2116 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2120 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2121 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2122 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2123 &s
->min_proto_version
);
2124 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2125 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2126 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2127 &s
->max_proto_version
);
2129 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
2133 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2136 case SSL_CTRL_SET_MSG_CALLBACK
:
2137 s
->msg_callback
= (void (*)
2138 (int write_p
, int version
, int content_type
,
2139 const void *buf
, size_t len
, SSL
*ssl
,
2144 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
2148 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2150 return ctx
->sessions
;
2153 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2156 /* For some cases with ctx == NULL perform syntax checks */
2159 #ifndef OPENSSL_NO_EC
2160 case SSL_CTRL_SET_GROUPS_LIST
:
2161 return tls1_set_groups_list(NULL
, NULL
, parg
);
2163 case SSL_CTRL_SET_SIGALGS_LIST
:
2164 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2165 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2172 case SSL_CTRL_GET_READ_AHEAD
:
2173 return (ctx
->read_ahead
);
2174 case SSL_CTRL_SET_READ_AHEAD
:
2175 l
= ctx
->read_ahead
;
2176 ctx
->read_ahead
= larg
;
2179 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2180 ctx
->msg_callback_arg
= parg
;
2183 case SSL_CTRL_GET_MAX_CERT_LIST
:
2184 return (long)(ctx
->max_cert_list
);
2185 case SSL_CTRL_SET_MAX_CERT_LIST
:
2188 l
= (long)ctx
->max_cert_list
;
2189 ctx
->max_cert_list
= (size_t)larg
;
2192 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2195 l
= (long)ctx
->session_cache_size
;
2196 ctx
->session_cache_size
= (size_t)larg
;
2198 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2199 return (long)(ctx
->session_cache_size
);
2200 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2201 l
= ctx
->session_cache_mode
;
2202 ctx
->session_cache_mode
= larg
;
2204 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2205 return (ctx
->session_cache_mode
);
2207 case SSL_CTRL_SESS_NUMBER
:
2208 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
2209 case SSL_CTRL_SESS_CONNECT
:
2210 return (ctx
->stats
.sess_connect
);
2211 case SSL_CTRL_SESS_CONNECT_GOOD
:
2212 return (ctx
->stats
.sess_connect_good
);
2213 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2214 return (ctx
->stats
.sess_connect_renegotiate
);
2215 case SSL_CTRL_SESS_ACCEPT
:
2216 return (ctx
->stats
.sess_accept
);
2217 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2218 return (ctx
->stats
.sess_accept_good
);
2219 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2220 return (ctx
->stats
.sess_accept_renegotiate
);
2221 case SSL_CTRL_SESS_HIT
:
2222 return (ctx
->stats
.sess_hit
);
2223 case SSL_CTRL_SESS_CB_HIT
:
2224 return (ctx
->stats
.sess_cb_hit
);
2225 case SSL_CTRL_SESS_MISSES
:
2226 return (ctx
->stats
.sess_miss
);
2227 case SSL_CTRL_SESS_TIMEOUTS
:
2228 return (ctx
->stats
.sess_timeout
);
2229 case SSL_CTRL_SESS_CACHE_FULL
:
2230 return (ctx
->stats
.sess_cache_full
);
2232 return (ctx
->mode
|= larg
);
2233 case SSL_CTRL_CLEAR_MODE
:
2234 return (ctx
->mode
&= ~larg
);
2235 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2236 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2238 ctx
->max_send_fragment
= larg
;
2239 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2240 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2242 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2243 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2245 ctx
->split_send_fragment
= larg
;
2247 case SSL_CTRL_SET_MAX_PIPELINES
:
2248 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2250 ctx
->max_pipelines
= larg
;
2252 case SSL_CTRL_CERT_FLAGS
:
2253 return (ctx
->cert
->cert_flags
|= larg
);
2254 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2255 return (ctx
->cert
->cert_flags
&= ~larg
);
2256 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2257 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2258 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2259 &ctx
->min_proto_version
);
2260 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2261 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2262 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2263 &ctx
->max_proto_version
);
2265 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
2269 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2272 case SSL_CTRL_SET_MSG_CALLBACK
:
2273 ctx
->msg_callback
= (void (*)
2274 (int write_p
, int version
, int content_type
,
2275 const void *buf
, size_t len
, SSL
*ssl
,
2280 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
2284 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2293 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2294 const SSL_CIPHER
*const *bp
)
2296 if ((*ap
)->id
> (*bp
)->id
)
2298 if ((*ap
)->id
< (*bp
)->id
)
2303 /** return a STACK of the ciphers available for the SSL and in order of
2305 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2308 if (s
->cipher_list
!= NULL
) {
2309 return (s
->cipher_list
);
2310 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2311 return (s
->ctx
->cipher_list
);
2317 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2319 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2321 return s
->session
->ciphers
;
2324 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2326 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2328 ciphers
= SSL_get_ciphers(s
);
2331 ssl_set_client_disabled(s
);
2332 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2333 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2334 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2336 sk
= sk_SSL_CIPHER_new_null();
2339 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2340 sk_SSL_CIPHER_free(sk
);
2348 /** return a STACK of the ciphers available for the SSL and in order of
2350 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2353 if (s
->cipher_list_by_id
!= NULL
) {
2354 return (s
->cipher_list_by_id
);
2355 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2356 return (s
->ctx
->cipher_list_by_id
);
2362 /** The old interface to get the same thing as SSL_get_ciphers() */
2363 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2365 const SSL_CIPHER
*c
;
2366 STACK_OF(SSL_CIPHER
) *sk
;
2370 sk
= SSL_get_ciphers(s
);
2371 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2373 c
= sk_SSL_CIPHER_value(sk
, n
);
2379 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2381 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2384 return ctx
->cipher_list
;
2388 /** specify the ciphers to be used by default by the SSL_CTX */
2389 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2391 STACK_OF(SSL_CIPHER
) *sk
;
2393 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2394 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2396 * ssl_create_cipher_list may return an empty stack if it was unable to
2397 * find a cipher matching the given rule string (for example if the rule
2398 * string specifies a cipher which has been disabled). This is not an
2399 * error as far as ssl_create_cipher_list is concerned, and hence
2400 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2404 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2405 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2411 /** specify the ciphers to be used by the SSL */
2412 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2414 STACK_OF(SSL_CIPHER
) *sk
;
2416 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2417 &s
->cipher_list_by_id
, str
, s
->cert
);
2418 /* see comment in SSL_CTX_set_cipher_list */
2421 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2422 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2428 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2431 STACK_OF(SSL_CIPHER
) *sk
;
2432 const SSL_CIPHER
*c
;
2435 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2439 sk
= s
->session
->ciphers
;
2441 if (sk_SSL_CIPHER_num(sk
) == 0)
2444 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2447 c
= sk_SSL_CIPHER_value(sk
, i
);
2448 n
= strlen(c
->name
);
2455 memcpy(p
, c
->name
, n
+ 1);
2464 /** return a servername extension value if provided in Client Hello, or NULL.
2465 * So far, only host_name types are defined (RFC 3546).
2468 const char *SSL_get_servername(const SSL
*s
, const int type
)
2470 if (type
!= TLSEXT_NAMETYPE_host_name
)
2473 return s
->session
&& !s
->ext
.hostname
?
2474 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2477 int SSL_get_servername_type(const SSL
*s
)
2480 && (!s
->ext
.hostname
? s
->session
->
2481 ext
.hostname
: s
->ext
.hostname
))
2482 return TLSEXT_NAMETYPE_host_name
;
2487 * SSL_select_next_proto implements the standard protocol selection. It is
2488 * expected that this function is called from the callback set by
2489 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2490 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2491 * not included in the length. A byte string of length 0 is invalid. No byte
2492 * string may be truncated. The current, but experimental algorithm for
2493 * selecting the protocol is: 1) If the server doesn't support NPN then this
2494 * is indicated to the callback. In this case, the client application has to
2495 * abort the connection or have a default application level protocol. 2) If
2496 * the server supports NPN, but advertises an empty list then the client
2497 * selects the first protocol in its list, but indicates via the API that this
2498 * fallback case was enacted. 3) Otherwise, the client finds the first
2499 * protocol in the server's list that it supports and selects this protocol.
2500 * This is because it's assumed that the server has better information about
2501 * which protocol a client should use. 4) If the client doesn't support any
2502 * of the server's advertised protocols, then this is treated the same as
2503 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2504 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2506 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2507 const unsigned char *server
,
2508 unsigned int server_len
,
2509 const unsigned char *client
, unsigned int client_len
)
2512 const unsigned char *result
;
2513 int status
= OPENSSL_NPN_UNSUPPORTED
;
2516 * For each protocol in server preference order, see if we support it.
2518 for (i
= 0; i
< server_len
;) {
2519 for (j
= 0; j
< client_len
;) {
2520 if (server
[i
] == client
[j
] &&
2521 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2522 /* We found a match */
2523 result
= &server
[i
];
2524 status
= OPENSSL_NPN_NEGOTIATED
;
2534 /* There's no overlap between our protocols and the server's list. */
2536 status
= OPENSSL_NPN_NO_OVERLAP
;
2539 *out
= (unsigned char *)result
+ 1;
2540 *outlen
= result
[0];
2544 #ifndef OPENSSL_NO_NEXTPROTONEG
2546 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2547 * client's requested protocol for this connection and returns 0. If the
2548 * client didn't request any protocol, then *data is set to NULL. Note that
2549 * the client can request any protocol it chooses. The value returned from
2550 * this function need not be a member of the list of supported protocols
2551 * provided by the callback.
2553 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2560 *len
= (unsigned int)s
->ext
.npn_len
;
2565 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2566 * a TLS server needs a list of supported protocols for Next Protocol
2567 * Negotiation. The returned list must be in wire format. The list is
2568 * returned by setting |out| to point to it and |outlen| to its length. This
2569 * memory will not be modified, but one should assume that the SSL* keeps a
2570 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2571 * wishes to advertise. Otherwise, no such extension will be included in the
2574 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2575 SSL_CTX_npn_advertised_cb_func cb
,
2578 ctx
->ext
.npn_advertised_cb
= cb
;
2579 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2583 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2584 * client needs to select a protocol from the server's provided list. |out|
2585 * must be set to point to the selected protocol (which may be within |in|).
2586 * The length of the protocol name must be written into |outlen|. The
2587 * server's advertised protocols are provided in |in| and |inlen|. The
2588 * callback can assume that |in| is syntactically valid. The client must
2589 * select a protocol. It is fatal to the connection if this callback returns
2590 * a value other than SSL_TLSEXT_ERR_OK.
2592 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2593 SSL_CTX_npn_select_cb_func cb
,
2596 ctx
->ext
.npn_select_cb
= cb
;
2597 ctx
->ext
.npn_select_cb_arg
= arg
;
2602 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2603 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2604 * length-prefixed strings). Returns 0 on success.
2606 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2607 unsigned int protos_len
)
2609 OPENSSL_free(ctx
->ext
.alpn
);
2610 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2611 if (ctx
->ext
.alpn
== NULL
) {
2612 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2615 ctx
->ext
.alpn_len
= protos_len
;
2621 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2622 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2623 * length-prefixed strings). Returns 0 on success.
2625 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2626 unsigned int protos_len
)
2628 OPENSSL_free(ssl
->ext
.alpn
);
2629 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2630 if (ssl
->ext
.alpn
== NULL
) {
2631 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2634 ssl
->ext
.alpn_len
= protos_len
;
2640 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2641 * called during ClientHello processing in order to select an ALPN protocol
2642 * from the client's list of offered protocols.
2644 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2645 SSL_CTX_alpn_select_cb_func cb
,
2648 ctx
->ext
.alpn_select_cb
= cb
;
2649 ctx
->ext
.alpn_select_cb_arg
= arg
;
2653 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2654 * On return it sets |*data| to point to |*len| bytes of protocol name
2655 * (not including the leading length-prefix byte). If the server didn't
2656 * respond with a negotiated protocol then |*len| will be zero.
2658 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2663 *data
= ssl
->s3
->alpn_selected
;
2667 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2670 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2671 const char *label
, size_t llen
,
2672 const unsigned char *context
, size_t contextlen
,
2675 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2678 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2680 contextlen
, use_context
);
2683 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2685 const unsigned char *session_id
= a
->session_id
;
2687 unsigned char tmp_storage
[4];
2689 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2690 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2691 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2692 session_id
= tmp_storage
;
2696 ((unsigned long)session_id
[0]) |
2697 ((unsigned long)session_id
[1] << 8L) |
2698 ((unsigned long)session_id
[2] << 16L) |
2699 ((unsigned long)session_id
[3] << 24L);
2704 * NB: If this function (or indeed the hash function which uses a sort of
2705 * coarser function than this one) is changed, ensure
2706 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2707 * being able to construct an SSL_SESSION that will collide with any existing
2708 * session with a matching session ID.
2710 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2712 if (a
->ssl_version
!= b
->ssl_version
)
2714 if (a
->session_id_length
!= b
->session_id_length
)
2716 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2720 * These wrapper functions should remain rather than redeclaring
2721 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2722 * variable. The reason is that the functions aren't static, they're exposed
2726 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2728 SSL_CTX
*ret
= NULL
;
2731 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2735 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2738 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2739 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2742 ret
= OPENSSL_zalloc(sizeof(*ret
));
2747 ret
->min_proto_version
= 0;
2748 ret
->max_proto_version
= 0;
2749 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2750 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2751 /* We take the system default. */
2752 ret
->session_timeout
= meth
->get_timeout();
2753 ret
->references
= 1;
2754 ret
->lock
= CRYPTO_THREAD_lock_new();
2755 if (ret
->lock
== NULL
) {
2756 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2760 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2761 ret
->verify_mode
= SSL_VERIFY_NONE
;
2762 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2765 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2766 if (ret
->sessions
== NULL
)
2768 ret
->cert_store
= X509_STORE_new();
2769 if (ret
->cert_store
== NULL
)
2771 #ifndef OPENSSL_NO_CT
2772 ret
->ctlog_store
= CTLOG_STORE_new();
2773 if (ret
->ctlog_store
== NULL
)
2776 if (!ssl_create_cipher_list(ret
->method
,
2777 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2778 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2779 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2780 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2784 ret
->param
= X509_VERIFY_PARAM_new();
2785 if (ret
->param
== NULL
)
2788 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2789 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2792 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2793 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2797 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2800 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2803 /* No compression for DTLS */
2804 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2805 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2807 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2808 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2810 /* Setup RFC5077 ticket keys */
2811 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2812 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2813 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2814 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2815 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2816 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2817 ret
->options
|= SSL_OP_NO_TICKET
;
2819 #ifndef OPENSSL_NO_SRP
2820 if (!SSL_CTX_SRP_CTX_init(ret
))
2823 #ifndef OPENSSL_NO_ENGINE
2824 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2825 # define eng_strx(x) #x
2826 # define eng_str(x) eng_strx(x)
2827 /* Use specific client engine automatically... ignore errors */
2830 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2833 ENGINE_load_builtin_engines();
2834 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2836 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2842 * Default is to connect to non-RI servers. When RI is more widely
2843 * deployed might change this.
2845 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2847 * Disable compression by default to prevent CRIME. Applications can
2848 * re-enable compression by configuring
2849 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2850 * or by using the SSL_CONF library.
2852 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2854 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
2857 * Default max early data is a fully loaded single record. Could be split
2858 * across multiple records in practice
2860 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
2864 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2870 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
2874 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
2877 REF_PRINT_COUNT("SSL_CTX", ctx
);
2878 REF_ASSERT_ISNT(i
< 2);
2879 return ((i
> 1) ? 1 : 0);
2882 void SSL_CTX_free(SSL_CTX
*a
)
2889 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
2890 REF_PRINT_COUNT("SSL_CTX", a
);
2893 REF_ASSERT_ISNT(i
< 0);
2895 X509_VERIFY_PARAM_free(a
->param
);
2896 dane_ctx_final(&a
->dane
);
2899 * Free internal session cache. However: the remove_cb() may reference
2900 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2901 * after the sessions were flushed.
2902 * As the ex_data handling routines might also touch the session cache,
2903 * the most secure solution seems to be: empty (flush) the cache, then
2904 * free ex_data, then finally free the cache.
2905 * (See ticket [openssl.org #212].)
2907 if (a
->sessions
!= NULL
)
2908 SSL_CTX_flush_sessions(a
, 0);
2910 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2911 lh_SSL_SESSION_free(a
->sessions
);
2912 X509_STORE_free(a
->cert_store
);
2913 #ifndef OPENSSL_NO_CT
2914 CTLOG_STORE_free(a
->ctlog_store
);
2916 sk_SSL_CIPHER_free(a
->cipher_list
);
2917 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2918 ssl_cert_free(a
->cert
);
2919 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
2920 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2921 a
->comp_methods
= NULL
;
2922 #ifndef OPENSSL_NO_SRTP
2923 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2925 #ifndef OPENSSL_NO_SRP
2926 SSL_CTX_SRP_CTX_free(a
);
2928 #ifndef OPENSSL_NO_ENGINE
2929 ENGINE_finish(a
->client_cert_engine
);
2932 #ifndef OPENSSL_NO_EC
2933 OPENSSL_free(a
->ext
.ecpointformats
);
2934 OPENSSL_free(a
->ext
.supportedgroups
);
2936 OPENSSL_free(a
->ext
.alpn
);
2938 CRYPTO_THREAD_lock_free(a
->lock
);
2943 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2945 ctx
->default_passwd_callback
= cb
;
2948 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2950 ctx
->default_passwd_callback_userdata
= u
;
2953 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2955 return ctx
->default_passwd_callback
;
2958 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2960 return ctx
->default_passwd_callback_userdata
;
2963 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2965 s
->default_passwd_callback
= cb
;
2968 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2970 s
->default_passwd_callback_userdata
= u
;
2973 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2975 return s
->default_passwd_callback
;
2978 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2980 return s
->default_passwd_callback_userdata
;
2983 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2984 int (*cb
) (X509_STORE_CTX
*, void *),
2987 ctx
->app_verify_callback
= cb
;
2988 ctx
->app_verify_arg
= arg
;
2991 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2992 int (*cb
) (int, X509_STORE_CTX
*))
2994 ctx
->verify_mode
= mode
;
2995 ctx
->default_verify_callback
= cb
;
2998 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3000 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3003 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3005 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3008 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3010 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3013 void ssl_set_masks(SSL
*s
)
3016 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3017 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3018 unsigned long mask_k
, mask_a
;
3019 #ifndef OPENSSL_NO_EC
3020 int have_ecc_cert
, ecdsa_ok
;
3025 #ifndef OPENSSL_NO_DH
3026 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3031 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3032 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3033 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3034 #ifndef OPENSSL_NO_EC
3035 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3041 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3042 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3045 #ifndef OPENSSL_NO_GOST
3046 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3047 mask_k
|= SSL_kGOST
;
3048 mask_a
|= SSL_aGOST12
;
3050 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3051 mask_k
|= SSL_kGOST
;
3052 mask_a
|= SSL_aGOST12
;
3054 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3055 mask_k
|= SSL_kGOST
;
3056 mask_a
|= SSL_aGOST01
;
3066 if (rsa_enc
|| rsa_sign
) {
3074 mask_a
|= SSL_aNULL
;
3077 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3078 * depending on the key usage extension.
3080 #ifndef OPENSSL_NO_EC
3081 if (have_ecc_cert
) {
3083 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3084 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3085 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3088 mask_a
|= SSL_aECDSA
;
3090 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3091 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3092 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3093 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3094 mask_a
|= SSL_aECDSA
;
3097 #ifndef OPENSSL_NO_EC
3098 mask_k
|= SSL_kECDHE
;
3101 #ifndef OPENSSL_NO_PSK
3104 if (mask_k
& SSL_kRSA
)
3105 mask_k
|= SSL_kRSAPSK
;
3106 if (mask_k
& SSL_kDHE
)
3107 mask_k
|= SSL_kDHEPSK
;
3108 if (mask_k
& SSL_kECDHE
)
3109 mask_k
|= SSL_kECDHEPSK
;
3112 s
->s3
->tmp
.mask_k
= mask_k
;
3113 s
->s3
->tmp
.mask_a
= mask_a
;
3116 #ifndef OPENSSL_NO_EC
3118 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3120 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3121 /* key usage, if present, must allow signing */
3122 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3123 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3124 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3128 return 1; /* all checks are ok */
3133 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3134 size_t *serverinfo_length
)
3136 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3137 *serverinfo_length
= 0;
3139 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3142 *serverinfo
= cpk
->serverinfo
;
3143 *serverinfo_length
= cpk
->serverinfo_length
;
3147 void ssl_update_cache(SSL
*s
, int mode
)
3152 * If the session_id_length is 0, we are not supposed to cache it, and it
3153 * would be rather hard to do anyway :-)
3155 if (s
->session
->session_id_length
== 0)
3158 i
= s
->session_ctx
->session_cache_mode
;
3159 if ((i
& mode
) && (!s
->hit
)
3160 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
3161 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3162 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
3163 SSL_SESSION_up_ref(s
->session
);
3164 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3165 SSL_SESSION_free(s
->session
);
3168 /* auto flush every 255 connections */
3169 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3170 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
3171 ? s
->session_ctx
->stats
.sess_connect_good
3172 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
3173 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3178 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3183 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3188 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3192 if (s
->method
!= meth
) {
3193 const SSL_METHOD
*sm
= s
->method
;
3194 int (*hf
) (SSL
*) = s
->handshake_func
;
3196 if (sm
->version
== meth
->version
)
3201 ret
= s
->method
->ssl_new(s
);
3204 if (hf
== sm
->ssl_connect
)
3205 s
->handshake_func
= meth
->ssl_connect
;
3206 else if (hf
== sm
->ssl_accept
)
3207 s
->handshake_func
= meth
->ssl_accept
;
3212 int SSL_get_error(const SSL
*s
, int i
)
3219 return (SSL_ERROR_NONE
);
3222 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3223 * where we do encode the error
3225 if ((l
= ERR_peek_error()) != 0) {
3226 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3227 return (SSL_ERROR_SYSCALL
);
3229 return (SSL_ERROR_SSL
);
3232 if (SSL_want_read(s
)) {
3233 bio
= SSL_get_rbio(s
);
3234 if (BIO_should_read(bio
))
3235 return (SSL_ERROR_WANT_READ
);
3236 else if (BIO_should_write(bio
))
3238 * This one doesn't make too much sense ... We never try to write
3239 * to the rbio, and an application program where rbio and wbio
3240 * are separate couldn't even know what it should wait for.
3241 * However if we ever set s->rwstate incorrectly (so that we have
3242 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3243 * wbio *are* the same, this test works around that bug; so it
3244 * might be safer to keep it.
3246 return (SSL_ERROR_WANT_WRITE
);
3247 else if (BIO_should_io_special(bio
)) {
3248 reason
= BIO_get_retry_reason(bio
);
3249 if (reason
== BIO_RR_CONNECT
)
3250 return (SSL_ERROR_WANT_CONNECT
);
3251 else if (reason
== BIO_RR_ACCEPT
)
3252 return (SSL_ERROR_WANT_ACCEPT
);
3254 return (SSL_ERROR_SYSCALL
); /* unknown */
3258 if (SSL_want_write(s
)) {
3259 /* Access wbio directly - in order to use the buffered bio if present */
3261 if (BIO_should_write(bio
))
3262 return (SSL_ERROR_WANT_WRITE
);
3263 else if (BIO_should_read(bio
))
3265 * See above (SSL_want_read(s) with BIO_should_write(bio))
3267 return (SSL_ERROR_WANT_READ
);
3268 else if (BIO_should_io_special(bio
)) {
3269 reason
= BIO_get_retry_reason(bio
);
3270 if (reason
== BIO_RR_CONNECT
)
3271 return (SSL_ERROR_WANT_CONNECT
);
3272 else if (reason
== BIO_RR_ACCEPT
)
3273 return (SSL_ERROR_WANT_ACCEPT
);
3275 return (SSL_ERROR_SYSCALL
);
3278 if (SSL_want_x509_lookup(s
))
3279 return (SSL_ERROR_WANT_X509_LOOKUP
);
3280 if (SSL_want_async(s
))
3281 return SSL_ERROR_WANT_ASYNC
;
3282 if (SSL_want_async_job(s
))
3283 return SSL_ERROR_WANT_ASYNC_JOB
;
3284 if (SSL_want_early(s
))
3285 return SSL_ERROR_WANT_EARLY
;
3287 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3288 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3289 return (SSL_ERROR_ZERO_RETURN
);
3291 return (SSL_ERROR_SYSCALL
);
3294 static int ssl_do_handshake_intern(void *vargs
)
3296 struct ssl_async_args
*args
;
3299 args
= (struct ssl_async_args
*)vargs
;
3302 return s
->handshake_func(s
);
3305 int SSL_do_handshake(SSL
*s
)
3309 if (s
->handshake_func
== NULL
) {
3310 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3314 ossl_statem_check_finish_init(s
, -1);
3316 s
->method
->ssl_renegotiate_check(s
, 0);
3318 if (SSL_is_server(s
)) {
3319 /* clear SNI settings at server-side */
3320 OPENSSL_free(s
->ext
.hostname
);
3321 s
->ext
.hostname
= NULL
;
3324 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3325 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3326 struct ssl_async_args args
;
3330 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3332 ret
= s
->handshake_func(s
);
3338 void SSL_set_accept_state(SSL
*s
)
3342 ossl_statem_clear(s
);
3343 s
->handshake_func
= s
->method
->ssl_accept
;
3347 void SSL_set_connect_state(SSL
*s
)
3351 ossl_statem_clear(s
);
3352 s
->handshake_func
= s
->method
->ssl_connect
;
3356 int ssl_undefined_function(SSL
*s
)
3358 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3362 int ssl_undefined_void_function(void)
3364 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3365 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3369 int ssl_undefined_const_function(const SSL
*s
)
3374 const SSL_METHOD
*ssl_bad_method(int ver
)
3376 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3380 const char *ssl_protocol_to_string(int version
)
3384 case TLS1_3_VERSION
:
3387 case TLS1_2_VERSION
:
3390 case TLS1_1_VERSION
:
3405 case DTLS1_2_VERSION
:
3413 const char *SSL_get_version(const SSL
*s
)
3415 return ssl_protocol_to_string(s
->version
);
3418 SSL
*SSL_dup(SSL
*s
)
3420 STACK_OF(X509_NAME
) *sk
;
3425 /* If we're not quiescent, just up_ref! */
3426 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3427 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3432 * Otherwise, copy configuration state, and session if set.
3434 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3437 if (s
->session
!= NULL
) {
3439 * Arranges to share the same session via up_ref. This "copies"
3440 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3442 if (!SSL_copy_session_id(ret
, s
))
3446 * No session has been established yet, so we have to expect that
3447 * s->cert or ret->cert will be changed later -- they should not both
3448 * point to the same object, and thus we can't use
3449 * SSL_copy_session_id.
3451 if (!SSL_set_ssl_method(ret
, s
->method
))
3454 if (s
->cert
!= NULL
) {
3455 ssl_cert_free(ret
->cert
);
3456 ret
->cert
= ssl_cert_dup(s
->cert
);
3457 if (ret
->cert
== NULL
)
3461 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3462 (int)s
->sid_ctx_length
))
3466 if (!ssl_dane_dup(ret
, s
))
3468 ret
->version
= s
->version
;
3469 ret
->options
= s
->options
;
3470 ret
->mode
= s
->mode
;
3471 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3472 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3473 ret
->msg_callback
= s
->msg_callback
;
3474 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3475 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3476 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3477 ret
->generate_session_id
= s
->generate_session_id
;
3479 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3481 /* copy app data, a little dangerous perhaps */
3482 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3485 /* setup rbio, and wbio */
3486 if (s
->rbio
!= NULL
) {
3487 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3490 if (s
->wbio
!= NULL
) {
3491 if (s
->wbio
!= s
->rbio
) {
3492 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3495 BIO_up_ref(ret
->rbio
);
3496 ret
->wbio
= ret
->rbio
;
3500 ret
->server
= s
->server
;
3501 if (s
->handshake_func
) {
3503 SSL_set_accept_state(ret
);
3505 SSL_set_connect_state(ret
);
3507 ret
->shutdown
= s
->shutdown
;
3510 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3511 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3513 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3515 /* dup the cipher_list and cipher_list_by_id stacks */
3516 if (s
->cipher_list
!= NULL
) {
3517 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3520 if (s
->cipher_list_by_id
!= NULL
)
3521 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3525 /* Dup the client_CA list */
3526 if (s
->ca_names
!= NULL
) {
3527 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3530 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3531 xn
= sk_X509_NAME_value(sk
, i
);
3532 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3545 void ssl_clear_cipher_ctx(SSL
*s
)
3547 if (s
->enc_read_ctx
!= NULL
) {
3548 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3549 s
->enc_read_ctx
= NULL
;
3551 if (s
->enc_write_ctx
!= NULL
) {
3552 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3553 s
->enc_write_ctx
= NULL
;
3555 #ifndef OPENSSL_NO_COMP
3556 COMP_CTX_free(s
->expand
);
3558 COMP_CTX_free(s
->compress
);
3563 X509
*SSL_get_certificate(const SSL
*s
)
3565 if (s
->cert
!= NULL
)
3566 return (s
->cert
->key
->x509
);
3571 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3573 if (s
->cert
!= NULL
)
3574 return (s
->cert
->key
->privatekey
);
3579 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3581 if (ctx
->cert
!= NULL
)
3582 return ctx
->cert
->key
->x509
;
3587 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3589 if (ctx
->cert
!= NULL
)
3590 return ctx
->cert
->key
->privatekey
;
3595 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3597 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3598 return (s
->session
->cipher
);
3602 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3604 #ifndef OPENSSL_NO_COMP
3605 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3611 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3613 #ifndef OPENSSL_NO_COMP
3614 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3620 int ssl_init_wbio_buffer(SSL
*s
)
3624 if (s
->bbio
!= NULL
) {
3625 /* Already buffered. */
3629 bbio
= BIO_new(BIO_f_buffer());
3630 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3632 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3636 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3641 int ssl_free_wbio_buffer(SSL
*s
)
3643 /* callers ensure s is never null */
3644 if (s
->bbio
== NULL
)
3647 s
->wbio
= BIO_pop(s
->wbio
);
3648 if (!ossl_assert(s
->wbio
!= NULL
))
3656 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3658 ctx
->quiet_shutdown
= mode
;
3661 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3663 return (ctx
->quiet_shutdown
);
3666 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3668 s
->quiet_shutdown
= mode
;
3671 int SSL_get_quiet_shutdown(const SSL
*s
)
3673 return (s
->quiet_shutdown
);
3676 void SSL_set_shutdown(SSL
*s
, int mode
)
3681 int SSL_get_shutdown(const SSL
*s
)
3686 int SSL_version(const SSL
*s
)
3691 int SSL_client_version(const SSL
*s
)
3693 return s
->client_version
;
3696 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3701 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3704 if (ssl
->ctx
== ctx
)
3707 ctx
= ssl
->session_ctx
;
3708 new_cert
= ssl_cert_dup(ctx
->cert
);
3709 if (new_cert
== NULL
) {
3713 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3714 ssl_cert_free(new_cert
);
3718 ssl_cert_free(ssl
->cert
);
3719 ssl
->cert
= new_cert
;
3722 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3723 * so setter APIs must prevent invalid lengths from entering the system.
3725 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3729 * If the session ID context matches that of the parent SSL_CTX,
3730 * inherit it from the new SSL_CTX as well. If however the context does
3731 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3732 * leave it unchanged.
3734 if ((ssl
->ctx
!= NULL
) &&
3735 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3736 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3737 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3738 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3741 SSL_CTX_up_ref(ctx
);
3742 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3748 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3750 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3753 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3755 X509_LOOKUP
*lookup
;
3757 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3760 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3762 /* Clear any errors if the default directory does not exist */
3768 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3770 X509_LOOKUP
*lookup
;
3772 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3776 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3778 /* Clear any errors if the default file does not exist */
3784 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3787 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3790 void SSL_set_info_callback(SSL
*ssl
,
3791 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3793 ssl
->info_callback
= cb
;
3797 * One compiler (Diab DCC) doesn't like argument names in returned function
3800 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3803 return ssl
->info_callback
;
3806 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3808 ssl
->verify_result
= arg
;
3811 long SSL_get_verify_result(const SSL
*ssl
)
3813 return (ssl
->verify_result
);
3816 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3819 return sizeof(ssl
->s3
->client_random
);
3820 if (outlen
> sizeof(ssl
->s3
->client_random
))
3821 outlen
= sizeof(ssl
->s3
->client_random
);
3822 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3826 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3829 return sizeof(ssl
->s3
->server_random
);
3830 if (outlen
> sizeof(ssl
->s3
->server_random
))
3831 outlen
= sizeof(ssl
->s3
->server_random
);
3832 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3836 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3837 unsigned char *out
, size_t outlen
)
3840 return session
->master_key_length
;
3841 if (outlen
> session
->master_key_length
)
3842 outlen
= session
->master_key_length
;
3843 memcpy(out
, session
->master_key
, outlen
);
3847 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
3850 if (len
> sizeof(sess
->master_key
))
3853 memcpy(sess
->master_key
, in
, len
);
3854 sess
->master_key_length
= len
;
3859 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3861 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3864 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3866 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3869 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3871 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3874 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3876 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3879 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3881 return (ctx
->cert_store
);
3884 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3886 X509_STORE_free(ctx
->cert_store
);
3887 ctx
->cert_store
= store
;
3890 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3893 X509_STORE_up_ref(store
);
3894 SSL_CTX_set_cert_store(ctx
, store
);
3897 int SSL_want(const SSL
*s
)
3899 return (s
->rwstate
);
3903 * \brief Set the callback for generating temporary DH keys.
3904 * \param ctx the SSL context.
3905 * \param dh the callback
3908 #ifndef OPENSSL_NO_DH
3909 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3910 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3913 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3916 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3919 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3923 #ifndef OPENSSL_NO_PSK
3924 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3926 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3927 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3930 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3931 if (identity_hint
!= NULL
) {
3932 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3933 if (ctx
->cert
->psk_identity_hint
== NULL
)
3936 ctx
->cert
->psk_identity_hint
= NULL
;
3940 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3945 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3946 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3949 OPENSSL_free(s
->cert
->psk_identity_hint
);
3950 if (identity_hint
!= NULL
) {
3951 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3952 if (s
->cert
->psk_identity_hint
== NULL
)
3955 s
->cert
->psk_identity_hint
= NULL
;
3959 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3961 if (s
== NULL
|| s
->session
== NULL
)
3963 return (s
->session
->psk_identity_hint
);
3966 const char *SSL_get_psk_identity(const SSL
*s
)
3968 if (s
== NULL
|| s
->session
== NULL
)
3970 return (s
->session
->psk_identity
);
3973 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
3975 s
->psk_client_callback
= cb
;
3978 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
3980 ctx
->psk_client_callback
= cb
;
3983 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
3985 s
->psk_server_callback
= cb
;
3988 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
3990 ctx
->psk_server_callback
= cb
;
3994 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
3996 s
->psk_find_session_cb
= cb
;
3999 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4000 SSL_psk_find_session_cb_func cb
)
4002 ctx
->psk_find_session_cb
= cb
;
4005 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4007 s
->psk_use_session_cb
= cb
;
4010 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4011 SSL_psk_use_session_cb_func cb
)
4013 ctx
->psk_use_session_cb
= cb
;
4016 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4017 void (*cb
) (int write_p
, int version
,
4018 int content_type
, const void *buf
,
4019 size_t len
, SSL
*ssl
, void *arg
))
4021 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4024 void SSL_set_msg_callback(SSL
*ssl
,
4025 void (*cb
) (int write_p
, int version
,
4026 int content_type
, const void *buf
,
4027 size_t len
, SSL
*ssl
, void *arg
))
4029 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4032 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4033 int (*cb
) (SSL
*ssl
,
4037 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4038 (void (*)(void))cb
);
4041 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4042 int (*cb
) (SSL
*ssl
,
4043 int is_forward_secure
))
4045 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4046 (void (*)(void))cb
);
4049 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4050 size_t (*cb
) (SSL
*ssl
, int type
,
4051 size_t len
, void *arg
))
4053 ctx
->record_padding_cb
= cb
;
4056 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4058 ctx
->record_padding_arg
= arg
;
4061 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4063 return ctx
->record_padding_arg
;
4066 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4068 /* block size of 0 or 1 is basically no padding */
4069 if (block_size
== 1)
4070 ctx
->block_padding
= 0;
4071 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4072 ctx
->block_padding
= block_size
;
4078 void SSL_set_record_padding_callback(SSL
*ssl
,
4079 size_t (*cb
) (SSL
*ssl
, int type
,
4080 size_t len
, void *arg
))
4082 ssl
->record_padding_cb
= cb
;
4085 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4087 ssl
->record_padding_arg
= arg
;
4090 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4092 return ssl
->record_padding_arg
;
4095 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4097 /* block size of 0 or 1 is basically no padding */
4098 if (block_size
== 1)
4099 ssl
->block_padding
= 0;
4100 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4101 ssl
->block_padding
= block_size
;
4108 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4109 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4110 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4111 * Returns the newly allocated ctx;
4114 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4116 ssl_clear_hash_ctx(hash
);
4117 *hash
= EVP_MD_CTX_new();
4118 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4119 EVP_MD_CTX_free(*hash
);
4126 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4129 EVP_MD_CTX_free(*hash
);
4133 /* Retrieve handshake hashes */
4134 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4137 EVP_MD_CTX
*ctx
= NULL
;
4138 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4139 int hashleni
= EVP_MD_CTX_size(hdgst
);
4142 if (hashleni
< 0 || (size_t)hashleni
> outlen
)
4145 ctx
= EVP_MD_CTX_new();
4149 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4150 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
4153 *hashlen
= hashleni
;
4157 EVP_MD_CTX_free(ctx
);
4161 int SSL_session_reused(SSL
*s
)
4166 int SSL_is_server(const SSL
*s
)
4171 #if OPENSSL_API_COMPAT < 0x10100000L
4172 void SSL_set_debug(SSL
*s
, int debug
)
4174 /* Old function was do-nothing anyway... */
4180 void SSL_set_security_level(SSL
*s
, int level
)
4182 s
->cert
->sec_level
= level
;
4185 int SSL_get_security_level(const SSL
*s
)
4187 return s
->cert
->sec_level
;
4190 void SSL_set_security_callback(SSL
*s
,
4191 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4192 int op
, int bits
, int nid
,
4193 void *other
, void *ex
))
4195 s
->cert
->sec_cb
= cb
;
4198 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4199 const SSL_CTX
*ctx
, int op
,
4200 int bits
, int nid
, void *other
,
4202 return s
->cert
->sec_cb
;
4205 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4207 s
->cert
->sec_ex
= ex
;
4210 void *SSL_get0_security_ex_data(const SSL
*s
)
4212 return s
->cert
->sec_ex
;
4215 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4217 ctx
->cert
->sec_level
= level
;
4220 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4222 return ctx
->cert
->sec_level
;
4225 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4226 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4227 int op
, int bits
, int nid
,
4228 void *other
, void *ex
))
4230 ctx
->cert
->sec_cb
= cb
;
4233 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4239 return ctx
->cert
->sec_cb
;
4242 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4244 ctx
->cert
->sec_ex
= ex
;
4247 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4249 return ctx
->cert
->sec_ex
;
4253 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4254 * can return unsigned long, instead of the generic long return value from the
4255 * control interface.
4257 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4259 return ctx
->options
;
4262 unsigned long SSL_get_options(const SSL
*s
)
4267 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4269 return ctx
->options
|= op
;
4272 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4274 return s
->options
|= op
;
4277 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4279 return ctx
->options
&= ~op
;
4282 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4284 return s
->options
&= ~op
;
4287 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4289 return s
->verified_chain
;
4292 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4294 #ifndef OPENSSL_NO_CT
4297 * Moves SCTs from the |src| stack to the |dst| stack.
4298 * The source of each SCT will be set to |origin|.
4299 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4301 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4303 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4304 sct_source_t origin
)
4310 *dst
= sk_SCT_new_null();
4312 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4317 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4318 if (SCT_set_source(sct
, origin
) != 1)
4321 if (sk_SCT_push(*dst
, sct
) <= 0)
4329 sk_SCT_push(src
, sct
); /* Put the SCT back */
4334 * Look for data collected during ServerHello and parse if found.
4335 * Returns the number of SCTs extracted.
4337 static int ct_extract_tls_extension_scts(SSL
*s
)
4339 int scts_extracted
= 0;
4341 if (s
->ext
.scts
!= NULL
) {
4342 const unsigned char *p
= s
->ext
.scts
;
4343 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4345 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4347 SCT_LIST_free(scts
);
4350 return scts_extracted
;
4354 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4355 * contains an SCT X509 extension. They will be stored in |s->scts|.
4357 * - The number of SCTs extracted, assuming an OCSP response exists.
4358 * - 0 if no OCSP response exists or it contains no SCTs.
4359 * - A negative integer if an error occurs.
4361 static int ct_extract_ocsp_response_scts(SSL
*s
)
4363 # ifndef OPENSSL_NO_OCSP
4364 int scts_extracted
= 0;
4365 const unsigned char *p
;
4366 OCSP_BASICRESP
*br
= NULL
;
4367 OCSP_RESPONSE
*rsp
= NULL
;
4368 STACK_OF(SCT
) *scts
= NULL
;
4371 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4374 p
= s
->ext
.ocsp
.resp
;
4375 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4379 br
= OCSP_response_get1_basic(rsp
);
4383 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4384 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4390 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4392 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4393 if (scts_extracted
< 0)
4397 SCT_LIST_free(scts
);
4398 OCSP_BASICRESP_free(br
);
4399 OCSP_RESPONSE_free(rsp
);
4400 return scts_extracted
;
4402 /* Behave as if no OCSP response exists */
4408 * Attempts to extract SCTs from the peer certificate.
4409 * Return the number of SCTs extracted, or a negative integer if an error
4412 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4414 int scts_extracted
= 0;
4415 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4418 STACK_OF(SCT
) *scts
=
4419 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4422 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4424 SCT_LIST_free(scts
);
4427 return scts_extracted
;
4431 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4432 * response (if it exists) and X509v3 extensions in the certificate.
4433 * Returns NULL if an error occurs.
4435 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4437 if (!s
->scts_parsed
) {
4438 if (ct_extract_tls_extension_scts(s
) < 0 ||
4439 ct_extract_ocsp_response_scts(s
) < 0 ||
4440 ct_extract_x509v3_extension_scts(s
) < 0)
4450 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4451 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4456 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4457 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4459 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4462 for (i
= 0; i
< count
; ++i
) {
4463 SCT
*sct
= sk_SCT_value(scts
, i
);
4464 int status
= SCT_get_validation_status(sct
);
4466 if (status
== SCT_VALIDATION_STATUS_VALID
)
4469 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4473 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4477 * Since code exists that uses the custom extension handler for CT, look
4478 * for this and throw an error if they have already registered to use CT.
4480 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4481 TLSEXT_TYPE_signed_certificate_timestamp
))
4483 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4484 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4488 if (callback
!= NULL
) {
4490 * If we are validating CT, then we MUST accept SCTs served via OCSP
4492 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4496 s
->ct_validation_callback
= callback
;
4497 s
->ct_validation_callback_arg
= arg
;
4502 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4503 ssl_ct_validation_cb callback
, void *arg
)
4506 * Since code exists that uses the custom extension handler for CT, look for
4507 * this and throw an error if they have already registered to use CT.
4509 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4510 TLSEXT_TYPE_signed_certificate_timestamp
))
4512 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4513 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4517 ctx
->ct_validation_callback
= callback
;
4518 ctx
->ct_validation_callback_arg
= arg
;
4522 int SSL_ct_is_enabled(const SSL
*s
)
4524 return s
->ct_validation_callback
!= NULL
;
4527 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4529 return ctx
->ct_validation_callback
!= NULL
;
4532 int ssl_validate_ct(SSL
*s
)
4535 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4537 SSL_DANE
*dane
= &s
->dane
;
4538 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4539 const STACK_OF(SCT
) *scts
;
4542 * If no callback is set, the peer is anonymous, or its chain is invalid,
4543 * skip SCT validation - just return success. Applications that continue
4544 * handshakes without certificates, with unverified chains, or pinned leaf
4545 * certificates are outside the scope of the WebPKI and CT.
4547 * The above exclusions notwithstanding the vast majority of peers will
4548 * have rather ordinary certificate chains validated by typical
4549 * applications that perform certificate verification and therefore will
4550 * process SCTs when enabled.
4552 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4553 s
->verify_result
!= X509_V_OK
||
4554 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4558 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4559 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4561 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4562 switch (dane
->mtlsa
->usage
) {
4563 case DANETLS_USAGE_DANE_TA
:
4564 case DANETLS_USAGE_DANE_EE
:
4569 ctx
= CT_POLICY_EVAL_CTX_new();
4571 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4575 issuer
= sk_X509_value(s
->verified_chain
, 1);
4576 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4577 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4578 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4579 CT_POLICY_EVAL_CTX_set_time(
4580 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4582 scts
= SSL_get0_peer_scts(s
);
4585 * This function returns success (> 0) only when all the SCTs are valid, 0
4586 * when some are invalid, and < 0 on various internal errors (out of
4587 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4588 * reason to abort the handshake, that decision is up to the callback.
4589 * Therefore, we error out only in the unexpected case that the return
4590 * value is negative.
4592 * XXX: One might well argue that the return value of this function is an
4593 * unfortunate design choice. Its job is only to determine the validation
4594 * status of each of the provided SCTs. So long as it correctly separates
4595 * the wheat from the chaff it should return success. Failure in this case
4596 * ought to correspond to an inability to carry out its duties.
4598 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4599 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4603 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4605 ret
= 0; /* This function returns 0 on failure */
4608 CT_POLICY_EVAL_CTX_free(ctx
);
4610 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4611 * failure return code here. Also the application may wish the complete
4612 * the handshake, and then disconnect cleanly at a higher layer, after
4613 * checking the verification status of the completed connection.
4615 * We therefore force a certificate verification failure which will be
4616 * visible via SSL_get_verify_result() and cached as part of any resumed
4619 * Note: the permissive callback is for information gathering only, always
4620 * returns success, and does not affect verification status. Only the
4621 * strict callback or a custom application-specified callback can trigger
4622 * connection failure or record a verification error.
4625 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4629 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4631 switch (validation_mode
) {
4633 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4635 case SSL_CT_VALIDATION_PERMISSIVE
:
4636 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4637 case SSL_CT_VALIDATION_STRICT
:
4638 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4642 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4644 switch (validation_mode
) {
4646 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4648 case SSL_CT_VALIDATION_PERMISSIVE
:
4649 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4650 case SSL_CT_VALIDATION_STRICT
:
4651 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4655 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4657 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4660 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4662 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4665 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4667 CTLOG_STORE_free(ctx
->ctlog_store
);
4668 ctx
->ctlog_store
= logs
;
4671 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4673 return ctx
->ctlog_store
;
4676 #endif /* OPENSSL_NO_CT */
4678 void SSL_CTX_set_early_cb(SSL_CTX
*c
, SSL_early_cb_fn cb
, void *arg
)
4681 c
->early_cb_arg
= arg
;
4684 int SSL_early_isv2(SSL
*s
)
4686 if (s
->clienthello
== NULL
)
4688 return s
->clienthello
->isv2
;
4691 unsigned int SSL_early_get0_legacy_version(SSL
*s
)
4693 if (s
->clienthello
== NULL
)
4695 return s
->clienthello
->legacy_version
;
4698 size_t SSL_early_get0_random(SSL
*s
, const unsigned char **out
)
4700 if (s
->clienthello
== NULL
)
4703 *out
= s
->clienthello
->random
;
4704 return SSL3_RANDOM_SIZE
;
4707 size_t SSL_early_get0_session_id(SSL
*s
, const unsigned char **out
)
4709 if (s
->clienthello
== NULL
)
4712 *out
= s
->clienthello
->session_id
;
4713 return s
->clienthello
->session_id_len
;
4716 size_t SSL_early_get0_ciphers(SSL
*s
, const unsigned char **out
)
4718 if (s
->clienthello
== NULL
)
4721 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4722 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4725 size_t SSL_early_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4727 if (s
->clienthello
== NULL
)
4730 *out
= s
->clienthello
->compressions
;
4731 return s
->clienthello
->compressions_len
;
4734 int SSL_early_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4740 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4742 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4743 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4747 present
= OPENSSL_malloc(sizeof(*present
) * num
);
4748 if (present
== NULL
)
4750 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4751 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4753 if (ext
->received_order
>= num
)
4755 present
[ext
->received_order
] = ext
->type
;
4762 OPENSSL_free(present
);
4766 int SSL_early_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4772 if (s
->clienthello
== NULL
)
4774 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4775 r
= s
->clienthello
->pre_proc_exts
+ i
;
4776 if (r
->present
&& r
->type
== type
) {
4778 *out
= PACKET_data(&r
->data
);
4780 *outlen
= PACKET_remaining(&r
->data
);
4787 int SSL_free_buffers(SSL
*ssl
)
4789 RECORD_LAYER
*rl
= &ssl
->rlayer
;
4791 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
4794 RECORD_LAYER_release(rl
);
4798 int SSL_alloc_buffers(SSL
*ssl
)
4800 return ssl3_setup_buffers(ssl
);
4803 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4805 ctx
->keylog_callback
= cb
;
4808 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4810 return ctx
->keylog_callback
;
4813 static int nss_keylog_int(const char *prefix
,
4815 const uint8_t *parameter_1
,
4816 size_t parameter_1_len
,
4817 const uint8_t *parameter_2
,
4818 size_t parameter_2_len
)
4821 char *cursor
= NULL
;
4826 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
4829 * Our output buffer will contain the following strings, rendered with
4830 * space characters in between, terminated by a NULL character: first the
4831 * prefix, then the first parameter, then the second parameter. The
4832 * meaning of each parameter depends on the specific key material being
4833 * logged. Note that the first and second parameters are encoded in
4834 * hexadecimal, so we need a buffer that is twice their lengths.
4836 prefix_len
= strlen(prefix
);
4837 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
4838 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
4839 SSLerr(SSL_F_NSS_KEYLOG_INT
, ERR_R_MALLOC_FAILURE
);
4843 strcpy(cursor
, prefix
);
4844 cursor
+= prefix_len
;
4847 for (i
= 0; i
< parameter_1_len
; i
++) {
4848 sprintf(cursor
, "%02x", parameter_1
[i
]);
4853 for (i
= 0; i
< parameter_2_len
; i
++) {
4854 sprintf(cursor
, "%02x", parameter_2
[i
]);
4859 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
4865 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
4866 const uint8_t *encrypted_premaster
,
4867 size_t encrypted_premaster_len
,
4868 const uint8_t *premaster
,
4869 size_t premaster_len
)
4871 if (encrypted_premaster_len
< 8) {
4872 SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
4876 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
4877 return nss_keylog_int("RSA",
4879 encrypted_premaster
,
4885 int ssl_log_secret(SSL
*ssl
,
4887 const uint8_t *secret
,
4890 return nss_keylog_int(label
,
4892 ssl
->s3
->client_random
,
4898 #define SSLV2_CIPHER_LEN 3
4900 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
,
4905 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4907 if (PACKET_remaining(cipher_suites
) == 0) {
4908 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4909 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4913 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4914 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
,
4915 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4916 *al
= SSL_AD_DECODE_ERROR
;
4920 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4921 s
->s3
->tmp
.ciphers_raw
= NULL
;
4922 s
->s3
->tmp
.ciphers_rawlen
= 0;
4925 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
4926 PACKET sslv2ciphers
= *cipher_suites
;
4927 unsigned int leadbyte
;
4931 * We store the raw ciphers list in SSLv3+ format so we need to do some
4932 * preprocessing to convert the list first. If there are any SSLv2 only
4933 * ciphersuites with a non-zero leading byte then we are going to
4934 * slightly over allocate because we won't store those. But that isn't a
4937 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
4938 s
->s3
->tmp
.ciphers_raw
= raw
;
4940 *al
= SSL_AD_INTERNAL_ERROR
;
4943 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
4944 PACKET_remaining(&sslv2ciphers
) > 0;
4945 raw
+= TLS_CIPHER_LEN
) {
4946 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
4948 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
4951 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
4952 *al
= SSL_AD_DECODE_ERROR
;
4953 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4954 s
->s3
->tmp
.ciphers_raw
= NULL
;
4955 s
->s3
->tmp
.ciphers_rawlen
= 0;
4959 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
4961 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
4962 &s
->s3
->tmp
.ciphers_rawlen
)) {
4963 *al
= SSL_AD_INTERNAL_ERROR
;
4971 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
4972 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
4973 STACK_OF(SSL_CIPHER
) **scsvs
)
4978 if (!PACKET_buf_init(&pkt
, bytes
, len
))
4980 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, &alert
);
4983 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
4984 STACK_OF(SSL_CIPHER
) **skp
,
4985 STACK_OF(SSL_CIPHER
) **scsvs_out
,
4986 int sslv2format
, int *al
)
4988 const SSL_CIPHER
*c
;
4989 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
4990 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
4992 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
4993 unsigned char cipher
[SSLV2_CIPHER_LEN
];
4995 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4997 if (PACKET_remaining(cipher_suites
) == 0) {
4998 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4999 *al
= SSL_AD_ILLEGAL_PARAMETER
;
5003 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5004 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5005 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5006 *al
= SSL_AD_DECODE_ERROR
;
5010 sk
= sk_SSL_CIPHER_new_null();
5011 scsvs
= sk_SSL_CIPHER_new_null();
5012 if (sk
== NULL
|| scsvs
== NULL
) {
5013 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5014 *al
= SSL_AD_INTERNAL_ERROR
;
5018 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5020 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5021 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5022 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5024 if (sslv2format
&& cipher
[0] != '\0')
5027 /* For SSLv2-compat, ignore leading 0-byte. */
5028 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5030 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5031 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5032 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5033 *al
= SSL_AD_INTERNAL_ERROR
;
5038 if (PACKET_remaining(cipher_suites
) > 0) {
5039 *al
= SSL_AD_DECODE_ERROR
;
5040 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5047 sk_SSL_CIPHER_free(sk
);
5048 if (scsvs_out
!= NULL
)
5051 sk_SSL_CIPHER_free(scsvs
);
5054 sk_SSL_CIPHER_free(sk
);
5055 sk_SSL_CIPHER_free(scsvs
);
5059 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5061 ctx
->max_early_data
= max_early_data
;
5066 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5068 return ctx
->max_early_data
;
5071 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5073 s
->max_early_data
= max_early_data
;
5078 uint32_t SSL_get_max_early_data(const SSL
*s
)
5080 return s
->max_early_data
;