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
569 * back if we are not doing session-id reuse.
571 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
572 && (s
->method
!= s
->ctx
->method
)) {
573 s
->method
->ssl_free(s
);
574 s
->method
= s
->ctx
->method
;
575 if (!s
->method
->ssl_new(s
))
578 if (!s
->method
->ssl_clear(s
))
582 RECORD_LAYER_clear(&s
->rlayer
);
587 /** Used to change an SSL_CTXs default SSL method type */
588 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
590 STACK_OF(SSL_CIPHER
) *sk
;
594 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
595 &(ctx
->cipher_list_by_id
),
596 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
597 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
598 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
604 SSL
*SSL_new(SSL_CTX
*ctx
)
609 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
612 if (ctx
->method
== NULL
) {
613 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
617 s
= OPENSSL_zalloc(sizeof(*s
));
621 s
->lock
= CRYPTO_THREAD_lock_new();
622 if (s
->lock
== NULL
) {
623 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
628 RECORD_LAYER_init(&s
->rlayer
, s
);
630 s
->options
= ctx
->options
;
631 s
->dane
.flags
= ctx
->dane
.flags
;
632 s
->min_proto_version
= ctx
->min_proto_version
;
633 s
->max_proto_version
= ctx
->max_proto_version
;
635 s
->max_cert_list
= ctx
->max_cert_list
;
637 s
->max_early_data
= ctx
->max_early_data
;
640 * Earlier library versions used to copy the pointer to the CERT, not
641 * its contents; only when setting new parameters for the per-SSL
642 * copy, ssl_cert_new would be called (and the direct reference to
643 * the per-SSL_CTX settings would be lost, but those still were
644 * indirectly accessed for various purposes, and for that reason they
645 * used to be known as s->ctx->default_cert). Now we don't look at the
646 * SSL_CTX's CERT after having duplicated it once.
648 s
->cert
= ssl_cert_dup(ctx
->cert
);
652 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
653 s
->msg_callback
= ctx
->msg_callback
;
654 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
655 s
->verify_mode
= ctx
->verify_mode
;
656 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
657 s
->record_padding_cb
= ctx
->record_padding_cb
;
658 s
->record_padding_arg
= ctx
->record_padding_arg
;
659 s
->block_padding
= ctx
->block_padding
;
660 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
661 if (!ossl_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
))
663 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
664 s
->verify_callback
= ctx
->default_verify_callback
;
665 s
->generate_session_id
= ctx
->generate_session_id
;
667 s
->param
= X509_VERIFY_PARAM_new();
668 if (s
->param
== NULL
)
670 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
671 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
672 s
->max_send_fragment
= ctx
->max_send_fragment
;
673 s
->split_send_fragment
= ctx
->split_send_fragment
;
674 s
->max_pipelines
= ctx
->max_pipelines
;
675 if (s
->max_pipelines
> 1)
676 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
677 if (ctx
->default_read_buf_len
> 0)
678 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
683 s
->ext
.debug_arg
= NULL
;
684 s
->ext
.ticket_expected
= 0;
685 s
->ext
.status_type
= ctx
->ext
.status_type
;
686 s
->ext
.status_expected
= 0;
687 s
->ext
.ocsp
.ids
= NULL
;
688 s
->ext
.ocsp
.exts
= NULL
;
689 s
->ext
.ocsp
.resp
= NULL
;
690 s
->ext
.ocsp
.resp_len
= 0;
692 s
->session_ctx
= ctx
;
693 #ifndef OPENSSL_NO_EC
694 if (ctx
->ext
.ecpointformats
) {
695 s
->ext
.ecpointformats
=
696 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
697 ctx
->ext
.ecpointformats_len
);
698 if (!s
->ext
.ecpointformats
)
700 s
->ext
.ecpointformats_len
=
701 ctx
->ext
.ecpointformats_len
;
703 if (ctx
->ext
.supportedgroups
) {
704 s
->ext
.supportedgroups
=
705 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
706 ctx
->ext
.supportedgroups_len
);
707 if (!s
->ext
.supportedgroups
)
709 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
712 #ifndef OPENSSL_NO_NEXTPROTONEG
716 if (s
->ctx
->ext
.alpn
) {
717 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
718 if (s
->ext
.alpn
== NULL
)
720 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
721 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
724 s
->verified_chain
= NULL
;
725 s
->verify_result
= X509_V_OK
;
727 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
728 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
730 s
->method
= ctx
->method
;
732 s
->key_update
= SSL_KEY_UPDATE_NONE
;
734 if (!s
->method
->ssl_new(s
))
737 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
742 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
745 #ifndef OPENSSL_NO_PSK
746 s
->psk_client_callback
= ctx
->psk_client_callback
;
747 s
->psk_server_callback
= ctx
->psk_server_callback
;
749 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
750 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
754 #ifndef OPENSSL_NO_CT
755 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
756 ctx
->ct_validation_callback_arg
))
763 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
767 int SSL_is_dtls(const SSL
*s
)
769 return SSL_IS_DTLS(s
) ? 1 : 0;
772 int SSL_up_ref(SSL
*s
)
776 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
779 REF_PRINT_COUNT("SSL", s
);
780 REF_ASSERT_ISNT(i
< 2);
781 return ((i
> 1) ? 1 : 0);
784 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
785 unsigned int sid_ctx_len
)
787 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
788 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
789 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
792 ctx
->sid_ctx_length
= sid_ctx_len
;
793 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
798 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
799 unsigned int sid_ctx_len
)
801 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
802 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
803 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
806 ssl
->sid_ctx_length
= sid_ctx_len
;
807 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
812 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
814 CRYPTO_THREAD_write_lock(ctx
->lock
);
815 ctx
->generate_session_id
= cb
;
816 CRYPTO_THREAD_unlock(ctx
->lock
);
820 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
822 CRYPTO_THREAD_write_lock(ssl
->lock
);
823 ssl
->generate_session_id
= cb
;
824 CRYPTO_THREAD_unlock(ssl
->lock
);
828 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
832 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
833 * we can "construct" a session to give us the desired check - i.e. to
834 * find if there's a session in the hash table that would conflict with
835 * any new session built out of this id/id_len and the ssl_version in use
840 if (id_len
> sizeof r
.session_id
)
843 r
.ssl_version
= ssl
->version
;
844 r
.session_id_length
= id_len
;
845 memcpy(r
.session_id
, id
, id_len
);
847 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
848 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
849 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
853 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
855 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
858 int SSL_set_purpose(SSL
*s
, int purpose
)
860 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
863 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
865 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
868 int SSL_set_trust(SSL
*s
, int trust
)
870 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
873 int SSL_set1_host(SSL
*s
, const char *hostname
)
875 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
878 int SSL_add1_host(SSL
*s
, const char *hostname
)
880 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
883 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
885 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
888 const char *SSL_get0_peername(SSL
*s
)
890 return X509_VERIFY_PARAM_get0_peername(s
->param
);
893 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
895 return dane_ctx_enable(&ctx
->dane
);
898 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
900 unsigned long orig
= ctx
->dane
.flags
;
902 ctx
->dane
.flags
|= flags
;
906 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
908 unsigned long orig
= ctx
->dane
.flags
;
910 ctx
->dane
.flags
&= ~flags
;
914 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
916 SSL_DANE
*dane
= &s
->dane
;
918 if (s
->ctx
->dane
.mdmax
== 0) {
919 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
922 if (dane
->trecs
!= NULL
) {
923 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
928 * Default SNI name. This rejects empty names, while set1_host below
929 * accepts them and disables host name checks. To avoid side-effects with
930 * invalid input, set the SNI name first.
932 if (s
->ext
.hostname
== NULL
) {
933 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
934 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
939 /* Primary RFC6125 reference identifier */
940 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
941 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
947 dane
->dctx
= &s
->ctx
->dane
;
948 dane
->trecs
= sk_danetls_record_new_null();
950 if (dane
->trecs
== NULL
) {
951 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
957 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
959 unsigned long orig
= ssl
->dane
.flags
;
961 ssl
->dane
.flags
|= flags
;
965 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
967 unsigned long orig
= ssl
->dane
.flags
;
969 ssl
->dane
.flags
&= ~flags
;
973 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
975 SSL_DANE
*dane
= &s
->dane
;
977 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
981 *mcert
= dane
->mcert
;
983 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
988 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
989 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
991 SSL_DANE
*dane
= &s
->dane
;
993 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
997 *usage
= dane
->mtlsa
->usage
;
999 *selector
= dane
->mtlsa
->selector
;
1001 *mtype
= dane
->mtlsa
->mtype
;
1003 *data
= dane
->mtlsa
->data
;
1005 *dlen
= dane
->mtlsa
->dlen
;
1010 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1015 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1016 uint8_t mtype
, unsigned char *data
, size_t dlen
)
1018 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1021 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1024 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1027 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1029 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1032 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1034 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1037 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1042 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1047 void SSL_certs_clear(SSL
*s
)
1049 ssl_cert_clear_certs(s
->cert
);
1052 void SSL_free(SSL
*s
)
1059 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1060 REF_PRINT_COUNT("SSL", s
);
1063 REF_ASSERT_ISNT(i
< 0);
1065 X509_VERIFY_PARAM_free(s
->param
);
1066 dane_final(&s
->dane
);
1067 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1069 /* Ignore return value */
1070 ssl_free_wbio_buffer(s
);
1072 BIO_free_all(s
->wbio
);
1073 BIO_free_all(s
->rbio
);
1075 BUF_MEM_free(s
->init_buf
);
1077 /* add extra stuff */
1078 sk_SSL_CIPHER_free(s
->cipher_list
);
1079 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1081 /* Make the next call work :-) */
1082 if (s
->session
!= NULL
) {
1083 ssl_clear_bad_session(s
);
1084 SSL_SESSION_free(s
->session
);
1086 SSL_SESSION_free(s
->psksession
);
1090 ssl_cert_free(s
->cert
);
1091 /* Free up if allocated */
1093 OPENSSL_free(s
->ext
.hostname
);
1094 SSL_CTX_free(s
->session_ctx
);
1095 #ifndef OPENSSL_NO_EC
1096 OPENSSL_free(s
->ext
.ecpointformats
);
1097 OPENSSL_free(s
->ext
.supportedgroups
);
1098 #endif /* OPENSSL_NO_EC */
1099 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1100 #ifndef OPENSSL_NO_OCSP
1101 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1103 #ifndef OPENSSL_NO_CT
1104 SCT_LIST_free(s
->scts
);
1105 OPENSSL_free(s
->ext
.scts
);
1107 OPENSSL_free(s
->ext
.ocsp
.resp
);
1108 OPENSSL_free(s
->ext
.alpn
);
1109 OPENSSL_free(s
->ext
.tls13_cookie
);
1110 OPENSSL_free(s
->clienthello
);
1112 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1114 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1116 if (s
->method
!= NULL
)
1117 s
->method
->ssl_free(s
);
1119 RECORD_LAYER_release(&s
->rlayer
);
1121 SSL_CTX_free(s
->ctx
);
1123 ASYNC_WAIT_CTX_free(s
->waitctx
);
1125 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1126 OPENSSL_free(s
->ext
.npn
);
1129 #ifndef OPENSSL_NO_SRTP
1130 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1133 CRYPTO_THREAD_lock_free(s
->lock
);
1138 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1140 BIO_free_all(s
->rbio
);
1144 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1147 * If the output buffering BIO is still in place, remove it
1149 if (s
->bbio
!= NULL
)
1150 s
->wbio
= BIO_pop(s
->wbio
);
1152 BIO_free_all(s
->wbio
);
1155 /* Re-attach |bbio| to the new |wbio|. */
1156 if (s
->bbio
!= NULL
)
1157 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1160 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1163 * For historical reasons, this function has many different cases in
1164 * ownership handling.
1167 /* If nothing has changed, do nothing */
1168 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1172 * If the two arguments are equal then one fewer reference is granted by the
1173 * caller than we want to take
1175 if (rbio
!= NULL
&& rbio
== wbio
)
1179 * If only the wbio is changed only adopt one reference.
1181 if (rbio
== SSL_get_rbio(s
)) {
1182 SSL_set0_wbio(s
, wbio
);
1186 * There is an asymmetry here for historical reasons. If only the rbio is
1187 * changed AND the rbio and wbio were originally different, then we only
1188 * adopt one reference.
1190 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1191 SSL_set0_rbio(s
, rbio
);
1195 /* Otherwise, adopt both references. */
1196 SSL_set0_rbio(s
, rbio
);
1197 SSL_set0_wbio(s
, wbio
);
1200 BIO
*SSL_get_rbio(const SSL
*s
)
1205 BIO
*SSL_get_wbio(const SSL
*s
)
1207 if (s
->bbio
!= NULL
) {
1209 * If |bbio| is active, the true caller-configured BIO is its
1212 return BIO_next(s
->bbio
);
1217 int SSL_get_fd(const SSL
*s
)
1219 return SSL_get_rfd(s
);
1222 int SSL_get_rfd(const SSL
*s
)
1227 b
= SSL_get_rbio(s
);
1228 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1230 BIO_get_fd(r
, &ret
);
1234 int SSL_get_wfd(const SSL
*s
)
1239 b
= SSL_get_wbio(s
);
1240 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1242 BIO_get_fd(r
, &ret
);
1246 #ifndef OPENSSL_NO_SOCK
1247 int SSL_set_fd(SSL
*s
, int fd
)
1252 bio
= BIO_new(BIO_s_socket());
1255 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1258 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1259 SSL_set_bio(s
, bio
, bio
);
1265 int SSL_set_wfd(SSL
*s
, int fd
)
1267 BIO
*rbio
= SSL_get_rbio(s
);
1269 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1270 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1271 BIO
*bio
= BIO_new(BIO_s_socket());
1274 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1277 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1278 SSL_set0_wbio(s
, bio
);
1281 SSL_set0_wbio(s
, rbio
);
1286 int SSL_set_rfd(SSL
*s
, int fd
)
1288 BIO
*wbio
= SSL_get_wbio(s
);
1290 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1291 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1292 BIO
*bio
= BIO_new(BIO_s_socket());
1295 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1298 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1299 SSL_set0_rbio(s
, bio
);
1302 SSL_set0_rbio(s
, wbio
);
1309 /* return length of latest Finished message we sent, copy to 'buf' */
1310 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1314 if (s
->s3
!= NULL
) {
1315 ret
= s
->s3
->tmp
.finish_md_len
;
1318 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1323 /* return length of latest Finished message we expected, copy to 'buf' */
1324 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1328 if (s
->s3
!= NULL
) {
1329 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1332 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1337 int SSL_get_verify_mode(const SSL
*s
)
1339 return (s
->verify_mode
);
1342 int SSL_get_verify_depth(const SSL
*s
)
1344 return X509_VERIFY_PARAM_get_depth(s
->param
);
1347 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1348 return (s
->verify_callback
);
1351 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1353 return (ctx
->verify_mode
);
1356 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1358 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1361 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1362 return (ctx
->default_verify_callback
);
1365 void SSL_set_verify(SSL
*s
, int mode
,
1366 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1368 s
->verify_mode
= mode
;
1369 if (callback
!= NULL
)
1370 s
->verify_callback
= callback
;
1373 void SSL_set_verify_depth(SSL
*s
, int depth
)
1375 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1378 void SSL_set_read_ahead(SSL
*s
, int yes
)
1380 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1383 int SSL_get_read_ahead(const SSL
*s
)
1385 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1388 int SSL_pending(const SSL
*s
)
1390 size_t pending
= s
->method
->ssl_pending(s
);
1393 * SSL_pending cannot work properly if read-ahead is enabled
1394 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1395 * impossible to fix since SSL_pending cannot report errors that may be
1396 * observed while scanning the new data. (Note that SSL_pending() is
1397 * often used as a boolean value, so we'd better not return -1.)
1399 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1400 * we just return INT_MAX.
1402 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1405 int SSL_has_pending(const SSL
*s
)
1408 * Similar to SSL_pending() but returns a 1 to indicate that we have
1409 * unprocessed data available or 0 otherwise (as opposed to the number of
1410 * bytes available). Unlike SSL_pending() this will take into account
1411 * read_ahead data. A 1 return simply indicates that we have unprocessed
1412 * data. That data may not result in any application data, or we may fail
1413 * to parse the records for some reason.
1415 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1418 return RECORD_LAYER_read_pending(&s
->rlayer
);
1421 X509
*SSL_get_peer_certificate(const SSL
*s
)
1425 if ((s
== NULL
) || (s
->session
== NULL
))
1428 r
= s
->session
->peer
;
1438 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1442 if ((s
== NULL
) || (s
->session
== NULL
))
1445 r
= s
->session
->peer_chain
;
1448 * If we are a client, cert_chain includes the peer's own certificate; if
1449 * we are a server, it does not.
1456 * Now in theory, since the calling process own 't' it should be safe to
1457 * modify. We need to be able to read f without being hassled
1459 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1462 /* Do we need to to SSL locking? */
1463 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1468 * what if we are setup for one protocol version but want to talk another
1470 if (t
->method
!= f
->method
) {
1471 t
->method
->ssl_free(t
);
1472 t
->method
= f
->method
;
1473 if (t
->method
->ssl_new(t
) == 0)
1477 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1478 ssl_cert_free(t
->cert
);
1480 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1487 /* Fix this so it checks all the valid key/cert options */
1488 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1490 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1491 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1494 if (ctx
->cert
->key
->privatekey
== NULL
) {
1495 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1498 return (X509_check_private_key
1499 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1502 /* Fix this function so that it takes an optional type parameter */
1503 int SSL_check_private_key(const SSL
*ssl
)
1506 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1509 if (ssl
->cert
->key
->x509
== NULL
) {
1510 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1513 if (ssl
->cert
->key
->privatekey
== NULL
) {
1514 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1517 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1518 ssl
->cert
->key
->privatekey
));
1521 int SSL_waiting_for_async(SSL
*s
)
1529 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1531 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1535 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1538 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1539 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1541 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1545 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1549 int SSL_accept(SSL
*s
)
1551 if (s
->handshake_func
== NULL
) {
1552 /* Not properly initialized yet */
1553 SSL_set_accept_state(s
);
1556 return SSL_do_handshake(s
);
1559 int SSL_connect(SSL
*s
)
1561 if (s
->handshake_func
== NULL
) {
1562 /* Not properly initialized yet */
1563 SSL_set_connect_state(s
);
1566 return SSL_do_handshake(s
);
1569 long SSL_get_default_timeout(const SSL
*s
)
1571 return (s
->method
->get_timeout());
1574 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1575 int (*func
) (void *))
1578 if (s
->waitctx
== NULL
) {
1579 s
->waitctx
= ASYNC_WAIT_CTX_new();
1580 if (s
->waitctx
== NULL
)
1583 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1584 sizeof(struct ssl_async_args
))) {
1586 s
->rwstate
= SSL_NOTHING
;
1587 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1590 s
->rwstate
= SSL_ASYNC_PAUSED
;
1593 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1599 s
->rwstate
= SSL_NOTHING
;
1600 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1601 /* Shouldn't happen */
1606 static int ssl_io_intern(void *vargs
)
1608 struct ssl_async_args
*args
;
1613 args
= (struct ssl_async_args
*)vargs
;
1617 switch (args
->type
) {
1619 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1621 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1623 return args
->f
.func_other(s
);
1628 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1630 if (s
->handshake_func
== NULL
) {
1631 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1635 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1636 s
->rwstate
= SSL_NOTHING
;
1640 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1641 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1642 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1646 * If we are a client and haven't received the ServerHello etc then we
1649 ossl_statem_check_finish_init(s
, 0);
1651 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1652 struct ssl_async_args args
;
1658 args
.type
= READFUNC
;
1659 args
.f
.func_read
= s
->method
->ssl_read
;
1661 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1662 *readbytes
= s
->asyncrw
;
1665 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1669 int SSL_read(SSL
*s
, void *buf
, int num
)
1675 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1679 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1682 * The cast is safe here because ret should be <= INT_MAX because num is
1686 ret
= (int)readbytes
;
1691 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1693 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1700 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1705 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1706 return SSL_READ_EARLY_DATA_ERROR
;
1709 switch (s
->early_data_state
) {
1710 case SSL_EARLY_DATA_NONE
:
1711 if (!SSL_in_before(s
)) {
1712 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1713 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1714 return SSL_READ_EARLY_DATA_ERROR
;
1718 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1719 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1720 ret
= SSL_accept(s
);
1723 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1724 return SSL_READ_EARLY_DATA_ERROR
;
1728 case SSL_EARLY_DATA_READ_RETRY
:
1729 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1730 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1731 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1733 * State machine will update early_data_state to
1734 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1737 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1738 != SSL_EARLY_DATA_FINISHED_READING
)) {
1739 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1740 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1741 : SSL_READ_EARLY_DATA_ERROR
;
1744 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1747 return SSL_READ_EARLY_DATA_FINISH
;
1750 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1751 return SSL_READ_EARLY_DATA_ERROR
;
1755 int SSL_get_early_data_status(const SSL
*s
)
1757 return s
->ext
.early_data
;
1760 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1762 if (s
->handshake_func
== NULL
) {
1763 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1767 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1770 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1771 struct ssl_async_args args
;
1777 args
.type
= READFUNC
;
1778 args
.f
.func_read
= s
->method
->ssl_peek
;
1780 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1781 *readbytes
= s
->asyncrw
;
1784 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1788 int SSL_peek(SSL
*s
, void *buf
, int num
)
1794 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1798 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1801 * The cast is safe here because ret should be <= INT_MAX because num is
1805 ret
= (int)readbytes
;
1811 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1813 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1820 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1822 if (s
->handshake_func
== NULL
) {
1823 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1827 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1828 s
->rwstate
= SSL_NOTHING
;
1829 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1833 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1834 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1835 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1836 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1839 /* If we are a client and haven't sent the Finished we better do that */
1840 ossl_statem_check_finish_init(s
, 1);
1842 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1844 struct ssl_async_args args
;
1847 args
.buf
= (void *)buf
;
1849 args
.type
= WRITEFUNC
;
1850 args
.f
.func_write
= s
->method
->ssl_write
;
1852 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1853 *written
= s
->asyncrw
;
1856 return s
->method
->ssl_write(s
, buf
, num
, written
);
1860 int SSL_write(SSL
*s
, const void *buf
, int num
)
1866 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1870 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1873 * The cast is safe here because ret should be <= INT_MAX because num is
1882 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1884 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1891 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1893 int ret
, early_data_state
;
1895 switch (s
->early_data_state
) {
1896 case SSL_EARLY_DATA_NONE
:
1898 || !SSL_in_before(s
)
1899 || s
->session
== NULL
1900 || s
->session
->ext
.max_early_data
== 0) {
1901 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1902 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1907 case SSL_EARLY_DATA_CONNECT_RETRY
:
1908 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1909 ret
= SSL_connect(s
);
1912 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1917 case SSL_EARLY_DATA_WRITE_RETRY
:
1918 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1919 ret
= SSL_write_ex(s
, buf
, num
, written
);
1920 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
1923 case SSL_EARLY_DATA_FINISHED_READING
:
1924 case SSL_EARLY_DATA_READ_RETRY
:
1925 early_data_state
= s
->early_data_state
;
1926 /* We are a server writing to an unauthenticated client */
1927 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
1928 ret
= SSL_write_ex(s
, buf
, num
, written
);
1929 s
->early_data_state
= early_data_state
;
1933 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1938 int SSL_shutdown(SSL
*s
)
1941 * Note that this function behaves differently from what one might
1942 * expect. Return values are 0 for no success (yet), 1 for success; but
1943 * calling it once is usually not enough, even if blocking I/O is used
1944 * (see ssl3_shutdown).
1947 if (s
->handshake_func
== NULL
) {
1948 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1952 if (!SSL_in_init(s
)) {
1953 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1954 struct ssl_async_args args
;
1957 args
.type
= OTHERFUNC
;
1958 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1960 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1962 return s
->method
->ssl_shutdown(s
);
1965 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1970 int SSL_key_update(SSL
*s
, int updatetype
)
1973 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
1974 * negotiated, and that it is appropriate to call SSL_key_update() instead
1975 * of SSL_renegotiate().
1977 if (!SSL_IS_TLS13(s
)) {
1978 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
1982 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
1983 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
1984 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
1988 if (!SSL_is_init_finished(s
)) {
1989 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
1993 ossl_statem_set_in_init(s
, 1);
1994 s
->key_update
= updatetype
;
1998 int SSL_get_key_update_type(SSL
*s
)
2000 return s
->key_update
;
2003 int SSL_renegotiate(SSL
*s
)
2005 if (SSL_IS_TLS13(s
)) {
2006 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2010 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2011 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2018 return (s
->method
->ssl_renegotiate(s
));
2021 int SSL_renegotiate_abbreviated(SSL
*s
)
2023 if (SSL_IS_TLS13(s
)) {
2024 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2028 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2029 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2036 return (s
->method
->ssl_renegotiate(s
));
2039 int SSL_renegotiate_pending(SSL
*s
)
2042 * becomes true when negotiation is requested; false again once a
2043 * handshake has finished
2045 return (s
->renegotiate
!= 0);
2048 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2053 case SSL_CTRL_GET_READ_AHEAD
:
2054 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
2055 case SSL_CTRL_SET_READ_AHEAD
:
2056 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2057 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2060 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2061 s
->msg_callback_arg
= parg
;
2065 return (s
->mode
|= larg
);
2066 case SSL_CTRL_CLEAR_MODE
:
2067 return (s
->mode
&= ~larg
);
2068 case SSL_CTRL_GET_MAX_CERT_LIST
:
2069 return (long)(s
->max_cert_list
);
2070 case SSL_CTRL_SET_MAX_CERT_LIST
:
2073 l
= (long)s
->max_cert_list
;
2074 s
->max_cert_list
= (size_t)larg
;
2076 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2077 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2079 s
->max_send_fragment
= larg
;
2080 if (s
->max_send_fragment
< s
->split_send_fragment
)
2081 s
->split_send_fragment
= s
->max_send_fragment
;
2083 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2084 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2086 s
->split_send_fragment
= larg
;
2088 case SSL_CTRL_SET_MAX_PIPELINES
:
2089 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2091 s
->max_pipelines
= larg
;
2093 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2095 case SSL_CTRL_GET_RI_SUPPORT
:
2097 return s
->s3
->send_connection_binding
;
2100 case SSL_CTRL_CERT_FLAGS
:
2101 return (s
->cert
->cert_flags
|= larg
);
2102 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2103 return (s
->cert
->cert_flags
&= ~larg
);
2105 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2107 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2109 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2110 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2112 return TLS_CIPHER_LEN
;
2114 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2115 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2117 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2121 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2122 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2123 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2124 &s
->min_proto_version
);
2125 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2126 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2127 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2128 &s
->max_proto_version
);
2130 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
2134 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2137 case SSL_CTRL_SET_MSG_CALLBACK
:
2138 s
->msg_callback
= (void (*)
2139 (int write_p
, int version
, int content_type
,
2140 const void *buf
, size_t len
, SSL
*ssl
,
2145 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
2149 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2151 return ctx
->sessions
;
2154 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2157 /* For some cases with ctx == NULL perform syntax checks */
2160 #ifndef OPENSSL_NO_EC
2161 case SSL_CTRL_SET_GROUPS_LIST
:
2162 return tls1_set_groups_list(NULL
, NULL
, parg
);
2164 case SSL_CTRL_SET_SIGALGS_LIST
:
2165 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2166 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2173 case SSL_CTRL_GET_READ_AHEAD
:
2174 return (ctx
->read_ahead
);
2175 case SSL_CTRL_SET_READ_AHEAD
:
2176 l
= ctx
->read_ahead
;
2177 ctx
->read_ahead
= larg
;
2180 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2181 ctx
->msg_callback_arg
= parg
;
2184 case SSL_CTRL_GET_MAX_CERT_LIST
:
2185 return (long)(ctx
->max_cert_list
);
2186 case SSL_CTRL_SET_MAX_CERT_LIST
:
2189 l
= (long)ctx
->max_cert_list
;
2190 ctx
->max_cert_list
= (size_t)larg
;
2193 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2196 l
= (long)ctx
->session_cache_size
;
2197 ctx
->session_cache_size
= (size_t)larg
;
2199 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2200 return (long)(ctx
->session_cache_size
);
2201 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2202 l
= ctx
->session_cache_mode
;
2203 ctx
->session_cache_mode
= larg
;
2205 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2206 return (ctx
->session_cache_mode
);
2208 case SSL_CTRL_SESS_NUMBER
:
2209 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
2210 case SSL_CTRL_SESS_CONNECT
:
2211 return (ctx
->stats
.sess_connect
);
2212 case SSL_CTRL_SESS_CONNECT_GOOD
:
2213 return (ctx
->stats
.sess_connect_good
);
2214 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2215 return (ctx
->stats
.sess_connect_renegotiate
);
2216 case SSL_CTRL_SESS_ACCEPT
:
2217 return (ctx
->stats
.sess_accept
);
2218 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2219 return (ctx
->stats
.sess_accept_good
);
2220 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2221 return (ctx
->stats
.sess_accept_renegotiate
);
2222 case SSL_CTRL_SESS_HIT
:
2223 return (ctx
->stats
.sess_hit
);
2224 case SSL_CTRL_SESS_CB_HIT
:
2225 return (ctx
->stats
.sess_cb_hit
);
2226 case SSL_CTRL_SESS_MISSES
:
2227 return (ctx
->stats
.sess_miss
);
2228 case SSL_CTRL_SESS_TIMEOUTS
:
2229 return (ctx
->stats
.sess_timeout
);
2230 case SSL_CTRL_SESS_CACHE_FULL
:
2231 return (ctx
->stats
.sess_cache_full
);
2233 return (ctx
->mode
|= larg
);
2234 case SSL_CTRL_CLEAR_MODE
:
2235 return (ctx
->mode
&= ~larg
);
2236 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2237 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2239 ctx
->max_send_fragment
= larg
;
2240 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2241 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2243 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2244 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2246 ctx
->split_send_fragment
= larg
;
2248 case SSL_CTRL_SET_MAX_PIPELINES
:
2249 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2251 ctx
->max_pipelines
= larg
;
2253 case SSL_CTRL_CERT_FLAGS
:
2254 return (ctx
->cert
->cert_flags
|= larg
);
2255 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2256 return (ctx
->cert
->cert_flags
&= ~larg
);
2257 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2258 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2259 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2260 &ctx
->min_proto_version
);
2261 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2262 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2263 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2264 &ctx
->max_proto_version
);
2266 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
2270 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2273 case SSL_CTRL_SET_MSG_CALLBACK
:
2274 ctx
->msg_callback
= (void (*)
2275 (int write_p
, int version
, int content_type
,
2276 const void *buf
, size_t len
, SSL
*ssl
,
2281 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
2285 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2294 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2295 const SSL_CIPHER
*const *bp
)
2297 if ((*ap
)->id
> (*bp
)->id
)
2299 if ((*ap
)->id
< (*bp
)->id
)
2304 /** return a STACK of the ciphers available for the SSL and in order of
2306 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2309 if (s
->cipher_list
!= NULL
) {
2310 return (s
->cipher_list
);
2311 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2312 return (s
->ctx
->cipher_list
);
2318 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2320 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2322 return s
->session
->ciphers
;
2325 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2327 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2329 ciphers
= SSL_get_ciphers(s
);
2332 ssl_set_client_disabled(s
);
2333 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2334 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2335 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2337 sk
= sk_SSL_CIPHER_new_null();
2340 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2341 sk_SSL_CIPHER_free(sk
);
2349 /** return a STACK of the ciphers available for the SSL and in order of
2351 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2354 if (s
->cipher_list_by_id
!= NULL
) {
2355 return (s
->cipher_list_by_id
);
2356 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2357 return (s
->ctx
->cipher_list_by_id
);
2363 /** The old interface to get the same thing as SSL_get_ciphers() */
2364 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2366 const SSL_CIPHER
*c
;
2367 STACK_OF(SSL_CIPHER
) *sk
;
2371 sk
= SSL_get_ciphers(s
);
2372 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2374 c
= sk_SSL_CIPHER_value(sk
, n
);
2380 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2382 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2385 return ctx
->cipher_list
;
2389 /** specify the ciphers to be used by default by the SSL_CTX */
2390 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2392 STACK_OF(SSL_CIPHER
) *sk
;
2394 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2395 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2397 * ssl_create_cipher_list may return an empty stack if it was unable to
2398 * find a cipher matching the given rule string (for example if the rule
2399 * string specifies a cipher which has been disabled). This is not an
2400 * error as far as ssl_create_cipher_list is concerned, and hence
2401 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2405 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2406 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2412 /** specify the ciphers to be used by the SSL */
2413 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2415 STACK_OF(SSL_CIPHER
) *sk
;
2417 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2418 &s
->cipher_list_by_id
, str
, s
->cert
);
2419 /* see comment in SSL_CTX_set_cipher_list */
2422 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2423 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2429 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2432 STACK_OF(SSL_CIPHER
) *sk
;
2433 const SSL_CIPHER
*c
;
2436 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2440 sk
= s
->session
->ciphers
;
2442 if (sk_SSL_CIPHER_num(sk
) == 0)
2445 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2448 c
= sk_SSL_CIPHER_value(sk
, i
);
2449 n
= strlen(c
->name
);
2456 memcpy(p
, c
->name
, n
+ 1);
2465 /** return a servername extension value if provided in Client Hello, or NULL.
2466 * So far, only host_name types are defined (RFC 3546).
2469 const char *SSL_get_servername(const SSL
*s
, const int type
)
2471 if (type
!= TLSEXT_NAMETYPE_host_name
)
2474 return s
->session
&& !s
->ext
.hostname
?
2475 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2478 int SSL_get_servername_type(const SSL
*s
)
2481 && (!s
->ext
.hostname
? s
->session
->
2482 ext
.hostname
: s
->ext
.hostname
))
2483 return TLSEXT_NAMETYPE_host_name
;
2488 * SSL_select_next_proto implements the standard protocol selection. It is
2489 * expected that this function is called from the callback set by
2490 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2491 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2492 * not included in the length. A byte string of length 0 is invalid. No byte
2493 * string may be truncated. The current, but experimental algorithm for
2494 * selecting the protocol is: 1) If the server doesn't support NPN then this
2495 * is indicated to the callback. In this case, the client application has to
2496 * abort the connection or have a default application level protocol. 2) If
2497 * the server supports NPN, but advertises an empty list then the client
2498 * selects the first protocol in its list, but indicates via the API that this
2499 * fallback case was enacted. 3) Otherwise, the client finds the first
2500 * protocol in the server's list that it supports and selects this protocol.
2501 * This is because it's assumed that the server has better information about
2502 * which protocol a client should use. 4) If the client doesn't support any
2503 * of the server's advertised protocols, then this is treated the same as
2504 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2505 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2507 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2508 const unsigned char *server
,
2509 unsigned int server_len
,
2510 const unsigned char *client
, unsigned int client_len
)
2513 const unsigned char *result
;
2514 int status
= OPENSSL_NPN_UNSUPPORTED
;
2517 * For each protocol in server preference order, see if we support it.
2519 for (i
= 0; i
< server_len
;) {
2520 for (j
= 0; j
< client_len
;) {
2521 if (server
[i
] == client
[j
] &&
2522 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2523 /* We found a match */
2524 result
= &server
[i
];
2525 status
= OPENSSL_NPN_NEGOTIATED
;
2535 /* There's no overlap between our protocols and the server's list. */
2537 status
= OPENSSL_NPN_NO_OVERLAP
;
2540 *out
= (unsigned char *)result
+ 1;
2541 *outlen
= result
[0];
2545 #ifndef OPENSSL_NO_NEXTPROTONEG
2547 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2548 * client's requested protocol for this connection and returns 0. If the
2549 * client didn't request any protocol, then *data is set to NULL. Note that
2550 * the client can request any protocol it chooses. The value returned from
2551 * this function need not be a member of the list of supported protocols
2552 * provided by the callback.
2554 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2561 *len
= (unsigned int)s
->ext
.npn_len
;
2566 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2567 * a TLS server needs a list of supported protocols for Next Protocol
2568 * Negotiation. The returned list must be in wire format. The list is
2569 * returned by setting |out| to point to it and |outlen| to its length. This
2570 * memory will not be modified, but one should assume that the SSL* keeps a
2571 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2572 * wishes to advertise. Otherwise, no such extension will be included in the
2575 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2576 SSL_CTX_npn_advertised_cb_func cb
,
2579 ctx
->ext
.npn_advertised_cb
= cb
;
2580 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2584 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2585 * client needs to select a protocol from the server's provided list. |out|
2586 * must be set to point to the selected protocol (which may be within |in|).
2587 * The length of the protocol name must be written into |outlen|. The
2588 * server's advertised protocols are provided in |in| and |inlen|. The
2589 * callback can assume that |in| is syntactically valid. The client must
2590 * select a protocol. It is fatal to the connection if this callback returns
2591 * a value other than SSL_TLSEXT_ERR_OK.
2593 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2594 SSL_CTX_npn_select_cb_func cb
,
2597 ctx
->ext
.npn_select_cb
= cb
;
2598 ctx
->ext
.npn_select_cb_arg
= arg
;
2603 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2604 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2605 * length-prefixed strings). Returns 0 on success.
2607 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2608 unsigned int protos_len
)
2610 OPENSSL_free(ctx
->ext
.alpn
);
2611 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2612 if (ctx
->ext
.alpn
== NULL
) {
2613 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2616 ctx
->ext
.alpn_len
= protos_len
;
2622 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2623 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2624 * length-prefixed strings). Returns 0 on success.
2626 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2627 unsigned int protos_len
)
2629 OPENSSL_free(ssl
->ext
.alpn
);
2630 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2631 if (ssl
->ext
.alpn
== NULL
) {
2632 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2635 ssl
->ext
.alpn_len
= protos_len
;
2641 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2642 * called during ClientHello processing in order to select an ALPN protocol
2643 * from the client's list of offered protocols.
2645 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2646 SSL_CTX_alpn_select_cb_func cb
,
2649 ctx
->ext
.alpn_select_cb
= cb
;
2650 ctx
->ext
.alpn_select_cb_arg
= arg
;
2654 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2655 * On return it sets |*data| to point to |*len| bytes of protocol name
2656 * (not including the leading length-prefix byte). If the server didn't
2657 * respond with a negotiated protocol then |*len| will be zero.
2659 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2664 *data
= ssl
->s3
->alpn_selected
;
2668 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2671 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2672 const char *label
, size_t llen
,
2673 const unsigned char *context
, size_t contextlen
,
2676 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2679 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2681 contextlen
, use_context
);
2684 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2686 const unsigned char *session_id
= a
->session_id
;
2688 unsigned char tmp_storage
[4];
2690 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2691 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2692 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2693 session_id
= tmp_storage
;
2697 ((unsigned long)session_id
[0]) |
2698 ((unsigned long)session_id
[1] << 8L) |
2699 ((unsigned long)session_id
[2] << 16L) |
2700 ((unsigned long)session_id
[3] << 24L);
2705 * NB: If this function (or indeed the hash function which uses a sort of
2706 * coarser function than this one) is changed, ensure
2707 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2708 * being able to construct an SSL_SESSION that will collide with any existing
2709 * session with a matching session ID.
2711 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2713 if (a
->ssl_version
!= b
->ssl_version
)
2715 if (a
->session_id_length
!= b
->session_id_length
)
2717 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2721 * These wrapper functions should remain rather than redeclaring
2722 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2723 * variable. The reason is that the functions aren't static, they're exposed
2727 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2729 SSL_CTX
*ret
= NULL
;
2732 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2736 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2739 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2740 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2743 ret
= OPENSSL_zalloc(sizeof(*ret
));
2748 ret
->min_proto_version
= 0;
2749 ret
->max_proto_version
= 0;
2750 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2751 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2752 /* We take the system default. */
2753 ret
->session_timeout
= meth
->get_timeout();
2754 ret
->references
= 1;
2755 ret
->lock
= CRYPTO_THREAD_lock_new();
2756 if (ret
->lock
== NULL
) {
2757 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2761 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2762 ret
->verify_mode
= SSL_VERIFY_NONE
;
2763 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2766 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2767 if (ret
->sessions
== NULL
)
2769 ret
->cert_store
= X509_STORE_new();
2770 if (ret
->cert_store
== NULL
)
2772 #ifndef OPENSSL_NO_CT
2773 ret
->ctlog_store
= CTLOG_STORE_new();
2774 if (ret
->ctlog_store
== NULL
)
2777 if (!ssl_create_cipher_list(ret
->method
,
2778 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2779 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2780 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2781 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2785 ret
->param
= X509_VERIFY_PARAM_new();
2786 if (ret
->param
== NULL
)
2789 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2790 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2793 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2794 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2798 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2801 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2804 /* No compression for DTLS */
2805 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2806 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2808 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2809 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2811 /* Setup RFC5077 ticket keys */
2812 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2813 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2814 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2815 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2816 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2817 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2818 ret
->options
|= SSL_OP_NO_TICKET
;
2820 #ifndef OPENSSL_NO_SRP
2821 if (!SSL_CTX_SRP_CTX_init(ret
))
2824 #ifndef OPENSSL_NO_ENGINE
2825 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2826 # define eng_strx(x) #x
2827 # define eng_str(x) eng_strx(x)
2828 /* Use specific client engine automatically... ignore errors */
2831 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2834 ENGINE_load_builtin_engines();
2835 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2837 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2843 * Default is to connect to non-RI servers. When RI is more widely
2844 * deployed might change this.
2846 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2848 * Disable compression by default to prevent CRIME. Applications can
2849 * re-enable compression by configuring
2850 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2851 * or by using the SSL_CONF library.
2853 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2855 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
2858 * Default max early data is a fully loaded single record. Could be split
2859 * across multiple records in practice
2861 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
2865 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2871 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
2875 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
2878 REF_PRINT_COUNT("SSL_CTX", ctx
);
2879 REF_ASSERT_ISNT(i
< 2);
2880 return ((i
> 1) ? 1 : 0);
2883 void SSL_CTX_free(SSL_CTX
*a
)
2890 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
2891 REF_PRINT_COUNT("SSL_CTX", a
);
2894 REF_ASSERT_ISNT(i
< 0);
2896 X509_VERIFY_PARAM_free(a
->param
);
2897 dane_ctx_final(&a
->dane
);
2900 * Free internal session cache. However: the remove_cb() may reference
2901 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2902 * after the sessions were flushed.
2903 * As the ex_data handling routines might also touch the session cache,
2904 * the most secure solution seems to be: empty (flush) the cache, then
2905 * free ex_data, then finally free the cache.
2906 * (See ticket [openssl.org #212].)
2908 if (a
->sessions
!= NULL
)
2909 SSL_CTX_flush_sessions(a
, 0);
2911 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2912 lh_SSL_SESSION_free(a
->sessions
);
2913 X509_STORE_free(a
->cert_store
);
2914 #ifndef OPENSSL_NO_CT
2915 CTLOG_STORE_free(a
->ctlog_store
);
2917 sk_SSL_CIPHER_free(a
->cipher_list
);
2918 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2919 ssl_cert_free(a
->cert
);
2920 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
2921 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2922 a
->comp_methods
= NULL
;
2923 #ifndef OPENSSL_NO_SRTP
2924 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2926 #ifndef OPENSSL_NO_SRP
2927 SSL_CTX_SRP_CTX_free(a
);
2929 #ifndef OPENSSL_NO_ENGINE
2930 ENGINE_finish(a
->client_cert_engine
);
2933 #ifndef OPENSSL_NO_EC
2934 OPENSSL_free(a
->ext
.ecpointformats
);
2935 OPENSSL_free(a
->ext
.supportedgroups
);
2937 OPENSSL_free(a
->ext
.alpn
);
2939 CRYPTO_THREAD_lock_free(a
->lock
);
2944 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2946 ctx
->default_passwd_callback
= cb
;
2949 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2951 ctx
->default_passwd_callback_userdata
= u
;
2954 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2956 return ctx
->default_passwd_callback
;
2959 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2961 return ctx
->default_passwd_callback_userdata
;
2964 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2966 s
->default_passwd_callback
= cb
;
2969 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2971 s
->default_passwd_callback_userdata
= u
;
2974 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2976 return s
->default_passwd_callback
;
2979 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2981 return s
->default_passwd_callback_userdata
;
2984 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2985 int (*cb
) (X509_STORE_CTX
*, void *),
2988 ctx
->app_verify_callback
= cb
;
2989 ctx
->app_verify_arg
= arg
;
2992 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2993 int (*cb
) (int, X509_STORE_CTX
*))
2995 ctx
->verify_mode
= mode
;
2996 ctx
->default_verify_callback
= cb
;
2999 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3001 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3004 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3006 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3009 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3011 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3014 void ssl_set_masks(SSL
*s
)
3017 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3018 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3019 unsigned long mask_k
, mask_a
;
3020 #ifndef OPENSSL_NO_EC
3021 int have_ecc_cert
, ecdsa_ok
;
3026 #ifndef OPENSSL_NO_DH
3027 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3032 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3033 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3034 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3035 #ifndef OPENSSL_NO_EC
3036 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3042 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3043 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3046 #ifndef OPENSSL_NO_GOST
3047 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3048 mask_k
|= SSL_kGOST
;
3049 mask_a
|= SSL_aGOST12
;
3051 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3052 mask_k
|= SSL_kGOST
;
3053 mask_a
|= SSL_aGOST12
;
3055 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3056 mask_k
|= SSL_kGOST
;
3057 mask_a
|= SSL_aGOST01
;
3067 if (rsa_enc
|| rsa_sign
) {
3075 mask_a
|= SSL_aNULL
;
3078 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3079 * depending on the key usage extension.
3081 #ifndef OPENSSL_NO_EC
3082 if (have_ecc_cert
) {
3084 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3085 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3086 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3089 mask_a
|= SSL_aECDSA
;
3091 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3092 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3093 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3094 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3095 mask_a
|= SSL_aECDSA
;
3098 #ifndef OPENSSL_NO_EC
3099 mask_k
|= SSL_kECDHE
;
3102 #ifndef OPENSSL_NO_PSK
3105 if (mask_k
& SSL_kRSA
)
3106 mask_k
|= SSL_kRSAPSK
;
3107 if (mask_k
& SSL_kDHE
)
3108 mask_k
|= SSL_kDHEPSK
;
3109 if (mask_k
& SSL_kECDHE
)
3110 mask_k
|= SSL_kECDHEPSK
;
3113 s
->s3
->tmp
.mask_k
= mask_k
;
3114 s
->s3
->tmp
.mask_a
= mask_a
;
3117 #ifndef OPENSSL_NO_EC
3119 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3121 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3122 /* key usage, if present, must allow signing */
3123 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3124 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3125 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3129 return 1; /* all checks are ok */
3134 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3135 size_t *serverinfo_length
)
3137 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3138 *serverinfo_length
= 0;
3140 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3143 *serverinfo
= cpk
->serverinfo
;
3144 *serverinfo_length
= cpk
->serverinfo_length
;
3148 void ssl_update_cache(SSL
*s
, int mode
)
3153 * If the session_id_length is 0, we are not supposed to cache it, and it
3154 * would be rather hard to do anyway :-)
3156 if (s
->session
->session_id_length
== 0)
3159 i
= s
->session_ctx
->session_cache_mode
;
3160 if ((i
& mode
) && (!s
->hit
)
3161 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
3162 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3163 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
3164 SSL_SESSION_up_ref(s
->session
);
3165 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3166 SSL_SESSION_free(s
->session
);
3169 /* auto flush every 255 connections */
3170 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3171 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
3172 ? s
->session_ctx
->stats
.sess_connect_good
3173 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
3174 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3179 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3184 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3189 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3193 if (s
->method
!= meth
) {
3194 const SSL_METHOD
*sm
= s
->method
;
3195 int (*hf
) (SSL
*) = s
->handshake_func
;
3197 if (sm
->version
== meth
->version
)
3202 ret
= s
->method
->ssl_new(s
);
3205 if (hf
== sm
->ssl_connect
)
3206 s
->handshake_func
= meth
->ssl_connect
;
3207 else if (hf
== sm
->ssl_accept
)
3208 s
->handshake_func
= meth
->ssl_accept
;
3213 int SSL_get_error(const SSL
*s
, int i
)
3220 return (SSL_ERROR_NONE
);
3223 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3224 * where we do encode the error
3226 if ((l
= ERR_peek_error()) != 0) {
3227 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3228 return (SSL_ERROR_SYSCALL
);
3230 return (SSL_ERROR_SSL
);
3233 if (SSL_want_read(s
)) {
3234 bio
= SSL_get_rbio(s
);
3235 if (BIO_should_read(bio
))
3236 return (SSL_ERROR_WANT_READ
);
3237 else if (BIO_should_write(bio
))
3239 * This one doesn't make too much sense ... We never try to write
3240 * to the rbio, and an application program where rbio and wbio
3241 * are separate couldn't even know what it should wait for.
3242 * However if we ever set s->rwstate incorrectly (so that we have
3243 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3244 * wbio *are* the same, this test works around that bug; so it
3245 * might be safer to keep it.
3247 return (SSL_ERROR_WANT_WRITE
);
3248 else if (BIO_should_io_special(bio
)) {
3249 reason
= BIO_get_retry_reason(bio
);
3250 if (reason
== BIO_RR_CONNECT
)
3251 return (SSL_ERROR_WANT_CONNECT
);
3252 else if (reason
== BIO_RR_ACCEPT
)
3253 return (SSL_ERROR_WANT_ACCEPT
);
3255 return (SSL_ERROR_SYSCALL
); /* unknown */
3259 if (SSL_want_write(s
)) {
3260 /* Access wbio directly - in order to use the buffered bio if present */
3262 if (BIO_should_write(bio
))
3263 return (SSL_ERROR_WANT_WRITE
);
3264 else if (BIO_should_read(bio
))
3266 * See above (SSL_want_read(s) with BIO_should_write(bio))
3268 return (SSL_ERROR_WANT_READ
);
3269 else if (BIO_should_io_special(bio
)) {
3270 reason
= BIO_get_retry_reason(bio
);
3271 if (reason
== BIO_RR_CONNECT
)
3272 return (SSL_ERROR_WANT_CONNECT
);
3273 else if (reason
== BIO_RR_ACCEPT
)
3274 return (SSL_ERROR_WANT_ACCEPT
);
3276 return (SSL_ERROR_SYSCALL
);
3279 if (SSL_want_x509_lookup(s
))
3280 return (SSL_ERROR_WANT_X509_LOOKUP
);
3281 if (SSL_want_async(s
))
3282 return SSL_ERROR_WANT_ASYNC
;
3283 if (SSL_want_async_job(s
))
3284 return SSL_ERROR_WANT_ASYNC_JOB
;
3285 if (SSL_want_early(s
))
3286 return SSL_ERROR_WANT_EARLY
;
3288 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3289 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3290 return (SSL_ERROR_ZERO_RETURN
);
3292 return (SSL_ERROR_SYSCALL
);
3295 static int ssl_do_handshake_intern(void *vargs
)
3297 struct ssl_async_args
*args
;
3300 args
= (struct ssl_async_args
*)vargs
;
3303 return s
->handshake_func(s
);
3306 int SSL_do_handshake(SSL
*s
)
3310 if (s
->handshake_func
== NULL
) {
3311 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3315 ossl_statem_check_finish_init(s
, -1);
3317 s
->method
->ssl_renegotiate_check(s
, 0);
3319 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3320 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3321 struct ssl_async_args args
;
3325 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3327 ret
= s
->handshake_func(s
);
3333 void SSL_set_accept_state(SSL
*s
)
3337 ossl_statem_clear(s
);
3338 s
->handshake_func
= s
->method
->ssl_accept
;
3342 void SSL_set_connect_state(SSL
*s
)
3346 ossl_statem_clear(s
);
3347 s
->handshake_func
= s
->method
->ssl_connect
;
3351 int ssl_undefined_function(SSL
*s
)
3353 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3357 int ssl_undefined_void_function(void)
3359 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3360 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3364 int ssl_undefined_const_function(const SSL
*s
)
3369 const SSL_METHOD
*ssl_bad_method(int ver
)
3371 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3375 const char *ssl_protocol_to_string(int version
)
3379 case TLS1_3_VERSION
:
3382 case TLS1_2_VERSION
:
3385 case TLS1_1_VERSION
:
3400 case DTLS1_2_VERSION
:
3408 const char *SSL_get_version(const SSL
*s
)
3410 return ssl_protocol_to_string(s
->version
);
3413 SSL
*SSL_dup(SSL
*s
)
3415 STACK_OF(X509_NAME
) *sk
;
3420 /* If we're not quiescent, just up_ref! */
3421 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3422 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3427 * Otherwise, copy configuration state, and session if set.
3429 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3432 if (s
->session
!= NULL
) {
3434 * Arranges to share the same session via up_ref. This "copies"
3435 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3437 if (!SSL_copy_session_id(ret
, s
))
3441 * No session has been established yet, so we have to expect that
3442 * s->cert or ret->cert will be changed later -- they should not both
3443 * point to the same object, and thus we can't use
3444 * SSL_copy_session_id.
3446 if (!SSL_set_ssl_method(ret
, s
->method
))
3449 if (s
->cert
!= NULL
) {
3450 ssl_cert_free(ret
->cert
);
3451 ret
->cert
= ssl_cert_dup(s
->cert
);
3452 if (ret
->cert
== NULL
)
3456 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3457 (int)s
->sid_ctx_length
))
3461 if (!ssl_dane_dup(ret
, s
))
3463 ret
->version
= s
->version
;
3464 ret
->options
= s
->options
;
3465 ret
->mode
= s
->mode
;
3466 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3467 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3468 ret
->msg_callback
= s
->msg_callback
;
3469 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3470 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3471 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3472 ret
->generate_session_id
= s
->generate_session_id
;
3474 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3476 /* copy app data, a little dangerous perhaps */
3477 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3480 /* setup rbio, and wbio */
3481 if (s
->rbio
!= NULL
) {
3482 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3485 if (s
->wbio
!= NULL
) {
3486 if (s
->wbio
!= s
->rbio
) {
3487 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3490 BIO_up_ref(ret
->rbio
);
3491 ret
->wbio
= ret
->rbio
;
3495 ret
->server
= s
->server
;
3496 if (s
->handshake_func
) {
3498 SSL_set_accept_state(ret
);
3500 SSL_set_connect_state(ret
);
3502 ret
->shutdown
= s
->shutdown
;
3505 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3506 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3508 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3510 /* dup the cipher_list and cipher_list_by_id stacks */
3511 if (s
->cipher_list
!= NULL
) {
3512 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3515 if (s
->cipher_list_by_id
!= NULL
)
3516 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3520 /* Dup the client_CA list */
3521 if (s
->ca_names
!= NULL
) {
3522 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3525 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3526 xn
= sk_X509_NAME_value(sk
, i
);
3527 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3540 void ssl_clear_cipher_ctx(SSL
*s
)
3542 if (s
->enc_read_ctx
!= NULL
) {
3543 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3544 s
->enc_read_ctx
= NULL
;
3546 if (s
->enc_write_ctx
!= NULL
) {
3547 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3548 s
->enc_write_ctx
= NULL
;
3550 #ifndef OPENSSL_NO_COMP
3551 COMP_CTX_free(s
->expand
);
3553 COMP_CTX_free(s
->compress
);
3558 X509
*SSL_get_certificate(const SSL
*s
)
3560 if (s
->cert
!= NULL
)
3561 return (s
->cert
->key
->x509
);
3566 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3568 if (s
->cert
!= NULL
)
3569 return (s
->cert
->key
->privatekey
);
3574 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3576 if (ctx
->cert
!= NULL
)
3577 return ctx
->cert
->key
->x509
;
3582 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3584 if (ctx
->cert
!= NULL
)
3585 return ctx
->cert
->key
->privatekey
;
3590 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3592 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3593 return (s
->session
->cipher
);
3597 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3599 #ifndef OPENSSL_NO_COMP
3600 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3606 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3608 #ifndef OPENSSL_NO_COMP
3609 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3615 int ssl_init_wbio_buffer(SSL
*s
)
3619 if (s
->bbio
!= NULL
) {
3620 /* Already buffered. */
3624 bbio
= BIO_new(BIO_f_buffer());
3625 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3627 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3631 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3636 int ssl_free_wbio_buffer(SSL
*s
)
3638 /* callers ensure s is never null */
3639 if (s
->bbio
== NULL
)
3642 s
->wbio
= BIO_pop(s
->wbio
);
3643 if (!ossl_assert(s
->wbio
!= NULL
))
3651 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3653 ctx
->quiet_shutdown
= mode
;
3656 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3658 return (ctx
->quiet_shutdown
);
3661 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3663 s
->quiet_shutdown
= mode
;
3666 int SSL_get_quiet_shutdown(const SSL
*s
)
3668 return (s
->quiet_shutdown
);
3671 void SSL_set_shutdown(SSL
*s
, int mode
)
3676 int SSL_get_shutdown(const SSL
*s
)
3681 int SSL_version(const SSL
*s
)
3686 int SSL_client_version(const SSL
*s
)
3688 return s
->client_version
;
3691 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3696 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3699 if (ssl
->ctx
== ctx
)
3702 ctx
= ssl
->session_ctx
;
3703 new_cert
= ssl_cert_dup(ctx
->cert
);
3704 if (new_cert
== NULL
) {
3708 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3709 ssl_cert_free(new_cert
);
3713 ssl_cert_free(ssl
->cert
);
3714 ssl
->cert
= new_cert
;
3717 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3718 * so setter APIs must prevent invalid lengths from entering the system.
3720 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3724 * If the session ID context matches that of the parent SSL_CTX,
3725 * inherit it from the new SSL_CTX as well. If however the context does
3726 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3727 * leave it unchanged.
3729 if ((ssl
->ctx
!= NULL
) &&
3730 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3731 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3732 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3733 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3736 SSL_CTX_up_ref(ctx
);
3737 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3743 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3745 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3748 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3750 X509_LOOKUP
*lookup
;
3752 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3755 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3757 /* Clear any errors if the default directory does not exist */
3763 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3765 X509_LOOKUP
*lookup
;
3767 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3771 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3773 /* Clear any errors if the default file does not exist */
3779 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3782 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3785 void SSL_set_info_callback(SSL
*ssl
,
3786 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3788 ssl
->info_callback
= cb
;
3792 * One compiler (Diab DCC) doesn't like argument names in returned function
3795 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3798 return ssl
->info_callback
;
3801 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3803 ssl
->verify_result
= arg
;
3806 long SSL_get_verify_result(const SSL
*ssl
)
3808 return (ssl
->verify_result
);
3811 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3814 return sizeof(ssl
->s3
->client_random
);
3815 if (outlen
> sizeof(ssl
->s3
->client_random
))
3816 outlen
= sizeof(ssl
->s3
->client_random
);
3817 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3821 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3824 return sizeof(ssl
->s3
->server_random
);
3825 if (outlen
> sizeof(ssl
->s3
->server_random
))
3826 outlen
= sizeof(ssl
->s3
->server_random
);
3827 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3831 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3832 unsigned char *out
, size_t outlen
)
3835 return session
->master_key_length
;
3836 if (outlen
> session
->master_key_length
)
3837 outlen
= session
->master_key_length
;
3838 memcpy(out
, session
->master_key
, outlen
);
3842 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
3845 if (len
> sizeof(sess
->master_key
))
3848 memcpy(sess
->master_key
, in
, len
);
3849 sess
->master_key_length
= len
;
3854 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3856 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3859 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3861 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3864 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3866 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3869 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3871 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3874 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3876 return (ctx
->cert_store
);
3879 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3881 X509_STORE_free(ctx
->cert_store
);
3882 ctx
->cert_store
= store
;
3885 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3888 X509_STORE_up_ref(store
);
3889 SSL_CTX_set_cert_store(ctx
, store
);
3892 int SSL_want(const SSL
*s
)
3894 return (s
->rwstate
);
3898 * \brief Set the callback for generating temporary DH keys.
3899 * \param ctx the SSL context.
3900 * \param dh the callback
3903 #ifndef OPENSSL_NO_DH
3904 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3905 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3908 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3911 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3914 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3918 #ifndef OPENSSL_NO_PSK
3919 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3921 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3922 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3925 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3926 if (identity_hint
!= NULL
) {
3927 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3928 if (ctx
->cert
->psk_identity_hint
== NULL
)
3931 ctx
->cert
->psk_identity_hint
= NULL
;
3935 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3940 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3941 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3944 OPENSSL_free(s
->cert
->psk_identity_hint
);
3945 if (identity_hint
!= NULL
) {
3946 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3947 if (s
->cert
->psk_identity_hint
== NULL
)
3950 s
->cert
->psk_identity_hint
= NULL
;
3954 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3956 if (s
== NULL
|| s
->session
== NULL
)
3958 return (s
->session
->psk_identity_hint
);
3961 const char *SSL_get_psk_identity(const SSL
*s
)
3963 if (s
== NULL
|| s
->session
== NULL
)
3965 return (s
->session
->psk_identity
);
3968 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
3970 s
->psk_client_callback
= cb
;
3973 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
3975 ctx
->psk_client_callback
= cb
;
3978 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
3980 s
->psk_server_callback
= cb
;
3983 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
3985 ctx
->psk_server_callback
= cb
;
3989 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
3991 s
->psk_find_session_cb
= cb
;
3994 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
3995 SSL_psk_find_session_cb_func cb
)
3997 ctx
->psk_find_session_cb
= cb
;
4000 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4002 s
->psk_use_session_cb
= cb
;
4005 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4006 SSL_psk_use_session_cb_func cb
)
4008 ctx
->psk_use_session_cb
= cb
;
4011 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4012 void (*cb
) (int write_p
, int version
,
4013 int content_type
, const void *buf
,
4014 size_t len
, SSL
*ssl
, void *arg
))
4016 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4019 void SSL_set_msg_callback(SSL
*ssl
,
4020 void (*cb
) (int write_p
, int version
,
4021 int content_type
, const void *buf
,
4022 size_t len
, SSL
*ssl
, void *arg
))
4024 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4027 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4028 int (*cb
) (SSL
*ssl
,
4032 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4033 (void (*)(void))cb
);
4036 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4037 int (*cb
) (SSL
*ssl
,
4038 int is_forward_secure
))
4040 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4041 (void (*)(void))cb
);
4044 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4045 size_t (*cb
) (SSL
*ssl
, int type
,
4046 size_t len
, void *arg
))
4048 ctx
->record_padding_cb
= cb
;
4051 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4053 ctx
->record_padding_arg
= arg
;
4056 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4058 return ctx
->record_padding_arg
;
4061 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4063 /* block size of 0 or 1 is basically no padding */
4064 if (block_size
== 1)
4065 ctx
->block_padding
= 0;
4066 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4067 ctx
->block_padding
= block_size
;
4073 void SSL_set_record_padding_callback(SSL
*ssl
,
4074 size_t (*cb
) (SSL
*ssl
, int type
,
4075 size_t len
, void *arg
))
4077 ssl
->record_padding_cb
= cb
;
4080 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4082 ssl
->record_padding_arg
= arg
;
4085 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4087 return ssl
->record_padding_arg
;
4090 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4092 /* block size of 0 or 1 is basically no padding */
4093 if (block_size
== 1)
4094 ssl
->block_padding
= 0;
4095 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4096 ssl
->block_padding
= block_size
;
4103 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4104 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4105 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4106 * Returns the newly allocated ctx;
4109 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4111 ssl_clear_hash_ctx(hash
);
4112 *hash
= EVP_MD_CTX_new();
4113 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4114 EVP_MD_CTX_free(*hash
);
4121 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4124 EVP_MD_CTX_free(*hash
);
4128 /* Retrieve handshake hashes */
4129 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4132 EVP_MD_CTX
*ctx
= NULL
;
4133 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4134 int hashleni
= EVP_MD_CTX_size(hdgst
);
4137 if (hashleni
< 0 || (size_t)hashleni
> outlen
)
4140 ctx
= EVP_MD_CTX_new();
4144 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4145 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
4148 *hashlen
= hashleni
;
4152 EVP_MD_CTX_free(ctx
);
4156 int SSL_session_reused(SSL
*s
)
4161 int SSL_is_server(const SSL
*s
)
4166 #if OPENSSL_API_COMPAT < 0x10100000L
4167 void SSL_set_debug(SSL
*s
, int debug
)
4169 /* Old function was do-nothing anyway... */
4175 void SSL_set_security_level(SSL
*s
, int level
)
4177 s
->cert
->sec_level
= level
;
4180 int SSL_get_security_level(const SSL
*s
)
4182 return s
->cert
->sec_level
;
4185 void SSL_set_security_callback(SSL
*s
,
4186 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4187 int op
, int bits
, int nid
,
4188 void *other
, void *ex
))
4190 s
->cert
->sec_cb
= cb
;
4193 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4194 const SSL_CTX
*ctx
, int op
,
4195 int bits
, int nid
, void *other
,
4197 return s
->cert
->sec_cb
;
4200 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4202 s
->cert
->sec_ex
= ex
;
4205 void *SSL_get0_security_ex_data(const SSL
*s
)
4207 return s
->cert
->sec_ex
;
4210 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4212 ctx
->cert
->sec_level
= level
;
4215 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4217 return ctx
->cert
->sec_level
;
4220 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4221 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4222 int op
, int bits
, int nid
,
4223 void *other
, void *ex
))
4225 ctx
->cert
->sec_cb
= cb
;
4228 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4234 return ctx
->cert
->sec_cb
;
4237 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4239 ctx
->cert
->sec_ex
= ex
;
4242 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4244 return ctx
->cert
->sec_ex
;
4248 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4249 * can return unsigned long, instead of the generic long return value from the
4250 * control interface.
4252 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4254 return ctx
->options
;
4257 unsigned long SSL_get_options(const SSL
*s
)
4262 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4264 return ctx
->options
|= op
;
4267 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4269 return s
->options
|= op
;
4272 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4274 return ctx
->options
&= ~op
;
4277 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4279 return s
->options
&= ~op
;
4282 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4284 return s
->verified_chain
;
4287 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4289 #ifndef OPENSSL_NO_CT
4292 * Moves SCTs from the |src| stack to the |dst| stack.
4293 * The source of each SCT will be set to |origin|.
4294 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4296 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4298 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4299 sct_source_t origin
)
4305 *dst
= sk_SCT_new_null();
4307 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4312 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4313 if (SCT_set_source(sct
, origin
) != 1)
4316 if (sk_SCT_push(*dst
, sct
) <= 0)
4324 sk_SCT_push(src
, sct
); /* Put the SCT back */
4329 * Look for data collected during ServerHello and parse if found.
4330 * Returns the number of SCTs extracted.
4332 static int ct_extract_tls_extension_scts(SSL
*s
)
4334 int scts_extracted
= 0;
4336 if (s
->ext
.scts
!= NULL
) {
4337 const unsigned char *p
= s
->ext
.scts
;
4338 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4340 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4342 SCT_LIST_free(scts
);
4345 return scts_extracted
;
4349 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4350 * contains an SCT X509 extension. They will be stored in |s->scts|.
4352 * - The number of SCTs extracted, assuming an OCSP response exists.
4353 * - 0 if no OCSP response exists or it contains no SCTs.
4354 * - A negative integer if an error occurs.
4356 static int ct_extract_ocsp_response_scts(SSL
*s
)
4358 # ifndef OPENSSL_NO_OCSP
4359 int scts_extracted
= 0;
4360 const unsigned char *p
;
4361 OCSP_BASICRESP
*br
= NULL
;
4362 OCSP_RESPONSE
*rsp
= NULL
;
4363 STACK_OF(SCT
) *scts
= NULL
;
4366 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4369 p
= s
->ext
.ocsp
.resp
;
4370 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4374 br
= OCSP_response_get1_basic(rsp
);
4378 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4379 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4385 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4387 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4388 if (scts_extracted
< 0)
4392 SCT_LIST_free(scts
);
4393 OCSP_BASICRESP_free(br
);
4394 OCSP_RESPONSE_free(rsp
);
4395 return scts_extracted
;
4397 /* Behave as if no OCSP response exists */
4403 * Attempts to extract SCTs from the peer certificate.
4404 * Return the number of SCTs extracted, or a negative integer if an error
4407 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4409 int scts_extracted
= 0;
4410 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4413 STACK_OF(SCT
) *scts
=
4414 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4417 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4419 SCT_LIST_free(scts
);
4422 return scts_extracted
;
4426 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4427 * response (if it exists) and X509v3 extensions in the certificate.
4428 * Returns NULL if an error occurs.
4430 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4432 if (!s
->scts_parsed
) {
4433 if (ct_extract_tls_extension_scts(s
) < 0 ||
4434 ct_extract_ocsp_response_scts(s
) < 0 ||
4435 ct_extract_x509v3_extension_scts(s
) < 0)
4445 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4446 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4451 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4452 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4454 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4457 for (i
= 0; i
< count
; ++i
) {
4458 SCT
*sct
= sk_SCT_value(scts
, i
);
4459 int status
= SCT_get_validation_status(sct
);
4461 if (status
== SCT_VALIDATION_STATUS_VALID
)
4464 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4468 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4472 * Since code exists that uses the custom extension handler for CT, look
4473 * for this and throw an error if they have already registered to use CT.
4475 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4476 TLSEXT_TYPE_signed_certificate_timestamp
))
4478 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4479 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4483 if (callback
!= NULL
) {
4485 * If we are validating CT, then we MUST accept SCTs served via OCSP
4487 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4491 s
->ct_validation_callback
= callback
;
4492 s
->ct_validation_callback_arg
= arg
;
4497 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4498 ssl_ct_validation_cb callback
, void *arg
)
4501 * Since code exists that uses the custom extension handler for CT, look for
4502 * this and throw an error if they have already registered to use CT.
4504 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4505 TLSEXT_TYPE_signed_certificate_timestamp
))
4507 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4508 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4512 ctx
->ct_validation_callback
= callback
;
4513 ctx
->ct_validation_callback_arg
= arg
;
4517 int SSL_ct_is_enabled(const SSL
*s
)
4519 return s
->ct_validation_callback
!= NULL
;
4522 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4524 return ctx
->ct_validation_callback
!= NULL
;
4527 int ssl_validate_ct(SSL
*s
)
4530 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4532 SSL_DANE
*dane
= &s
->dane
;
4533 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4534 const STACK_OF(SCT
) *scts
;
4537 * If no callback is set, the peer is anonymous, or its chain is invalid,
4538 * skip SCT validation - just return success. Applications that continue
4539 * handshakes without certificates, with unverified chains, or pinned leaf
4540 * certificates are outside the scope of the WebPKI and CT.
4542 * The above exclusions notwithstanding the vast majority of peers will
4543 * have rather ordinary certificate chains validated by typical
4544 * applications that perform certificate verification and therefore will
4545 * process SCTs when enabled.
4547 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4548 s
->verify_result
!= X509_V_OK
||
4549 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4553 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4554 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4556 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4557 switch (dane
->mtlsa
->usage
) {
4558 case DANETLS_USAGE_DANE_TA
:
4559 case DANETLS_USAGE_DANE_EE
:
4564 ctx
= CT_POLICY_EVAL_CTX_new();
4566 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4570 issuer
= sk_X509_value(s
->verified_chain
, 1);
4571 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4572 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4573 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4574 CT_POLICY_EVAL_CTX_set_time(
4575 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4577 scts
= SSL_get0_peer_scts(s
);
4580 * This function returns success (> 0) only when all the SCTs are valid, 0
4581 * when some are invalid, and < 0 on various internal errors (out of
4582 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4583 * reason to abort the handshake, that decision is up to the callback.
4584 * Therefore, we error out only in the unexpected case that the return
4585 * value is negative.
4587 * XXX: One might well argue that the return value of this function is an
4588 * unfortunate design choice. Its job is only to determine the validation
4589 * status of each of the provided SCTs. So long as it correctly separates
4590 * the wheat from the chaff it should return success. Failure in this case
4591 * ought to correspond to an inability to carry out its duties.
4593 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4594 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4598 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4600 ret
= 0; /* This function returns 0 on failure */
4603 CT_POLICY_EVAL_CTX_free(ctx
);
4605 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4606 * failure return code here. Also the application may wish the complete
4607 * the handshake, and then disconnect cleanly at a higher layer, after
4608 * checking the verification status of the completed connection.
4610 * We therefore force a certificate verification failure which will be
4611 * visible via SSL_get_verify_result() and cached as part of any resumed
4614 * Note: the permissive callback is for information gathering only, always
4615 * returns success, and does not affect verification status. Only the
4616 * strict callback or a custom application-specified callback can trigger
4617 * connection failure or record a verification error.
4620 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4624 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4626 switch (validation_mode
) {
4628 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4630 case SSL_CT_VALIDATION_PERMISSIVE
:
4631 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4632 case SSL_CT_VALIDATION_STRICT
:
4633 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4637 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4639 switch (validation_mode
) {
4641 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4643 case SSL_CT_VALIDATION_PERMISSIVE
:
4644 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4645 case SSL_CT_VALIDATION_STRICT
:
4646 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4650 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4652 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4655 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4657 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4660 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4662 CTLOG_STORE_free(ctx
->ctlog_store
);
4663 ctx
->ctlog_store
= logs
;
4666 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4668 return ctx
->ctlog_store
;
4671 #endif /* OPENSSL_NO_CT */
4673 void SSL_CTX_set_early_cb(SSL_CTX
*c
, SSL_early_cb_fn cb
, void *arg
)
4676 c
->early_cb_arg
= arg
;
4679 int SSL_early_isv2(SSL
*s
)
4681 if (s
->clienthello
== NULL
)
4683 return s
->clienthello
->isv2
;
4686 unsigned int SSL_early_get0_legacy_version(SSL
*s
)
4688 if (s
->clienthello
== NULL
)
4690 return s
->clienthello
->legacy_version
;
4693 size_t SSL_early_get0_random(SSL
*s
, const unsigned char **out
)
4695 if (s
->clienthello
== NULL
)
4698 *out
= s
->clienthello
->random
;
4699 return SSL3_RANDOM_SIZE
;
4702 size_t SSL_early_get0_session_id(SSL
*s
, const unsigned char **out
)
4704 if (s
->clienthello
== NULL
)
4707 *out
= s
->clienthello
->session_id
;
4708 return s
->clienthello
->session_id_len
;
4711 size_t SSL_early_get0_ciphers(SSL
*s
, const unsigned char **out
)
4713 if (s
->clienthello
== NULL
)
4716 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4717 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4720 size_t SSL_early_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4722 if (s
->clienthello
== NULL
)
4725 *out
= s
->clienthello
->compressions
;
4726 return s
->clienthello
->compressions_len
;
4729 int SSL_early_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4735 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4737 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4738 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4742 present
= OPENSSL_malloc(sizeof(*present
) * num
);
4743 if (present
== NULL
)
4745 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4746 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4748 if (ext
->received_order
>= num
)
4750 present
[ext
->received_order
] = ext
->type
;
4757 OPENSSL_free(present
);
4761 int SSL_early_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4767 if (s
->clienthello
== NULL
)
4769 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4770 r
= s
->clienthello
->pre_proc_exts
+ i
;
4771 if (r
->present
&& r
->type
== type
) {
4773 *out
= PACKET_data(&r
->data
);
4775 *outlen
= PACKET_remaining(&r
->data
);
4782 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4784 ctx
->keylog_callback
= cb
;
4787 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4789 return ctx
->keylog_callback
;
4792 static int nss_keylog_int(const char *prefix
,
4794 const uint8_t *parameter_1
,
4795 size_t parameter_1_len
,
4796 const uint8_t *parameter_2
,
4797 size_t parameter_2_len
)
4800 char *cursor
= NULL
;
4805 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
4808 * Our output buffer will contain the following strings, rendered with
4809 * space characters in between, terminated by a NULL character: first the
4810 * prefix, then the first parameter, then the second parameter. The
4811 * meaning of each parameter depends on the specific key material being
4812 * logged. Note that the first and second parameters are encoded in
4813 * hexadecimal, so we need a buffer that is twice their lengths.
4815 prefix_len
= strlen(prefix
);
4816 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
4817 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
4818 SSLerr(SSL_F_NSS_KEYLOG_INT
, ERR_R_MALLOC_FAILURE
);
4822 strcpy(cursor
, prefix
);
4823 cursor
+= prefix_len
;
4826 for (i
= 0; i
< parameter_1_len
; i
++) {
4827 sprintf(cursor
, "%02x", parameter_1
[i
]);
4832 for (i
= 0; i
< parameter_2_len
; i
++) {
4833 sprintf(cursor
, "%02x", parameter_2
[i
]);
4838 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
4844 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
4845 const uint8_t *encrypted_premaster
,
4846 size_t encrypted_premaster_len
,
4847 const uint8_t *premaster
,
4848 size_t premaster_len
)
4850 if (encrypted_premaster_len
< 8) {
4851 SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
4855 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
4856 return nss_keylog_int("RSA",
4858 encrypted_premaster
,
4864 int ssl_log_secret(SSL
*ssl
,
4866 const uint8_t *secret
,
4869 return nss_keylog_int(label
,
4871 ssl
->s3
->client_random
,
4877 #define SSLV2_CIPHER_LEN 3
4879 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
,
4884 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4886 if (PACKET_remaining(cipher_suites
) == 0) {
4887 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4888 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4892 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4893 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
,
4894 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4895 *al
= SSL_AD_DECODE_ERROR
;
4899 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4900 s
->s3
->tmp
.ciphers_raw
= NULL
;
4901 s
->s3
->tmp
.ciphers_rawlen
= 0;
4904 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
4905 PACKET sslv2ciphers
= *cipher_suites
;
4906 unsigned int leadbyte
;
4910 * We store the raw ciphers list in SSLv3+ format so we need to do some
4911 * preprocessing to convert the list first. If there are any SSLv2 only
4912 * ciphersuites with a non-zero leading byte then we are going to
4913 * slightly over allocate because we won't store those. But that isn't a
4916 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
4917 s
->s3
->tmp
.ciphers_raw
= raw
;
4919 *al
= SSL_AD_INTERNAL_ERROR
;
4922 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
4923 PACKET_remaining(&sslv2ciphers
) > 0;
4924 raw
+= TLS_CIPHER_LEN
) {
4925 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
4927 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
4930 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
4931 *al
= SSL_AD_DECODE_ERROR
;
4932 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4933 s
->s3
->tmp
.ciphers_raw
= NULL
;
4934 s
->s3
->tmp
.ciphers_rawlen
= 0;
4938 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
4940 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
4941 &s
->s3
->tmp
.ciphers_rawlen
)) {
4942 *al
= SSL_AD_INTERNAL_ERROR
;
4950 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
4951 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
4952 STACK_OF(SSL_CIPHER
) **scsvs
)
4957 if (!PACKET_buf_init(&pkt
, bytes
, len
))
4959 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, &alert
);
4962 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
4963 STACK_OF(SSL_CIPHER
) **skp
,
4964 STACK_OF(SSL_CIPHER
) **scsvs_out
,
4965 int sslv2format
, int *al
)
4967 const SSL_CIPHER
*c
;
4968 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
4969 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
4971 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
4972 unsigned char cipher
[SSLV2_CIPHER_LEN
];
4974 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4976 if (PACKET_remaining(cipher_suites
) == 0) {
4977 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4978 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4982 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4983 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
4984 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4985 *al
= SSL_AD_DECODE_ERROR
;
4989 sk
= sk_SSL_CIPHER_new_null();
4990 scsvs
= sk_SSL_CIPHER_new_null();
4991 if (sk
== NULL
|| scsvs
== NULL
) {
4992 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
4993 *al
= SSL_AD_INTERNAL_ERROR
;
4997 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
4999 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5000 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5001 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5003 if (sslv2format
&& cipher
[0] != '\0')
5006 /* For SSLv2-compat, ignore leading 0-byte. */
5007 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5009 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5010 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5011 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5012 *al
= SSL_AD_INTERNAL_ERROR
;
5017 if (PACKET_remaining(cipher_suites
) > 0) {
5018 *al
= SSL_AD_DECODE_ERROR
;
5019 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5026 sk_SSL_CIPHER_free(sk
);
5027 if (scsvs_out
!= NULL
)
5030 sk_SSL_CIPHER_free(scsvs
);
5033 sk_SSL_CIPHER_free(sk
);
5034 sk_SSL_CIPHER_free(scsvs
);
5038 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5040 ctx
->max_early_data
= max_early_data
;
5045 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5047 return ctx
->max_early_data
;
5050 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5052 s
->max_early_data
= max_early_data
;
5057 uint32_t SSL_get_max_early_data(const SSL
*s
)
5059 return s
->max_early_data
;