2 * Copyright 1995-2017 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>
23 #include "internal/cryptlib.h"
24 #include "internal/rand.h"
25 #include "internal/refcount.h"
27 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
29 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
31 * evil casts, but these functions are only called if there's a library
34 (int (*)(SSL
*, SSL3_RECORD
*, size_t, int))ssl_undefined_function
,
35 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
36 ssl_undefined_function
,
37 (int (*)(SSL
*, unsigned char *, unsigned char *, size_t, size_t *))
38 ssl_undefined_function
,
39 (int (*)(SSL
*, int))ssl_undefined_function
,
40 (size_t (*)(SSL
*, const char *, size_t, unsigned char *))
41 ssl_undefined_function
,
42 NULL
, /* client_finished_label */
43 0, /* client_finished_label_len */
44 NULL
, /* server_finished_label */
45 0, /* server_finished_label_len */
46 (int (*)(int))ssl_undefined_function
,
47 (int (*)(SSL
*, unsigned char *, size_t, const char *,
48 size_t, const unsigned char *, size_t,
49 int use_context
))ssl_undefined_function
,
52 struct ssl_async_args
{
56 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
58 int (*func_read
) (SSL
*, void *, size_t, size_t *);
59 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
60 int (*func_other
) (SSL
*);
70 DANETLS_MATCHING_FULL
, 0, NID_undef
73 DANETLS_MATCHING_2256
, 1, NID_sha256
76 DANETLS_MATCHING_2512
, 2, NID_sha512
80 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
84 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
85 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
88 if (dctx
->mdevp
!= NULL
)
91 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
92 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
94 if (mdord
== NULL
|| mdevp
== NULL
) {
97 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
101 /* Install default entries */
102 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
105 if (dane_mds
[i
].nid
== NID_undef
||
106 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
108 mdevp
[dane_mds
[i
].mtype
] = md
;
109 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
119 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
121 OPENSSL_free(dctx
->mdevp
);
124 OPENSSL_free(dctx
->mdord
);
129 static void tlsa_free(danetls_record
*t
)
133 OPENSSL_free(t
->data
);
134 EVP_PKEY_free(t
->spki
);
138 static void dane_final(SSL_DANE
*dane
)
140 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
143 sk_X509_pop_free(dane
->certs
, X509_free
);
146 X509_free(dane
->mcert
);
154 * dane_copy - Copy dane configuration, sans verification state.
156 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
161 if (!DANETLS_ENABLED(&from
->dane
))
164 num
= sk_danetls_record_num(from
->dane
.trecs
);
165 dane_final(&to
->dane
);
166 to
->dane
.flags
= from
->dane
.flags
;
167 to
->dane
.dctx
= &to
->ctx
->dane
;
168 to
->dane
.trecs
= sk_danetls_record_new_null();
170 if (to
->dane
.trecs
== NULL
) {
171 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
174 if (!sk_danetls_record_reserve(to
->dane
.trecs
, num
))
177 for (i
= 0; i
< num
; ++i
) {
178 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
180 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
181 t
->data
, t
->dlen
) <= 0)
187 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
188 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
192 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
193 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
197 if (mtype
> dctx
->mdmax
) {
198 const EVP_MD
**mdevp
;
200 int n
= ((int)mtype
) + 1;
202 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
204 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
209 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
211 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
216 /* Zero-fill any gaps */
217 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
225 dctx
->mdevp
[mtype
] = md
;
226 /* Coerce ordinal of disabled matching types to 0 */
227 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
232 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
234 if (mtype
> dane
->dctx
->mdmax
)
236 return dane
->dctx
->mdevp
[mtype
];
239 static int dane_tlsa_add(SSL_DANE
*dane
,
242 uint8_t mtype
, unsigned char *data
, size_t dlen
)
245 const EVP_MD
*md
= NULL
;
246 int ilen
= (int)dlen
;
250 if (dane
->trecs
== NULL
) {
251 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
255 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
256 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
260 if (usage
> DANETLS_USAGE_LAST
) {
261 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
265 if (selector
> DANETLS_SELECTOR_LAST
) {
266 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
270 if (mtype
!= DANETLS_MATCHING_FULL
) {
271 md
= tlsa_md_get(dane
, mtype
);
273 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
278 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
279 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
283 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
287 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
288 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
293 t
->selector
= selector
;
295 t
->data
= OPENSSL_malloc(dlen
);
296 if (t
->data
== NULL
) {
298 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
301 memcpy(t
->data
, data
, dlen
);
304 /* Validate and cache full certificate or public key */
305 if (mtype
== DANETLS_MATCHING_FULL
) {
306 const unsigned char *p
= data
;
308 EVP_PKEY
*pkey
= NULL
;
311 case DANETLS_SELECTOR_CERT
:
312 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
313 dlen
!= (size_t)(p
- data
)) {
315 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
318 if (X509_get0_pubkey(cert
) == NULL
) {
320 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
324 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
330 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
331 * records that contain full certificates of trust-anchors that are
332 * not present in the wire chain. For usage PKIX-TA(0), we augment
333 * the chain with untrusted Full(0) certificates from DNS, in case
334 * they are missing from the chain.
336 if ((dane
->certs
== NULL
&&
337 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
338 !sk_X509_push(dane
->certs
, cert
)) {
339 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
346 case DANETLS_SELECTOR_SPKI
:
347 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
348 dlen
!= (size_t)(p
- data
)) {
350 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
355 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
356 * records that contain full bare keys of trust-anchors that are
357 * not present in the wire chain.
359 if (usage
== DANETLS_USAGE_DANE_TA
)
368 * Find the right insertion point for the new record.
370 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
371 * they can be processed first, as they require no chain building, and no
372 * expiration or hostname checks. Because DANE-EE(3) is numerically
373 * largest, this is accomplished via descending sort by "usage".
375 * We also sort in descending order by matching ordinal to simplify
376 * the implementation of digest agility in the verification code.
378 * The choice of order for the selector is not significant, so we
379 * use the same descending order for consistency.
381 num
= sk_danetls_record_num(dane
->trecs
);
382 for (i
= 0; i
< num
; ++i
) {
383 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
385 if (rec
->usage
> usage
)
387 if (rec
->usage
< usage
)
389 if (rec
->selector
> selector
)
391 if (rec
->selector
< selector
)
393 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
398 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
400 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
403 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
409 * Return 0 if there is only one version configured and it was disabled
410 * at configure time. Return 1 otherwise.
412 static int ssl_check_allowed_versions(int min_version
, int max_version
)
414 int minisdtls
= 0, maxisdtls
= 0;
416 /* Figure out if we're doing DTLS versions or TLS versions */
417 if (min_version
== DTLS1_BAD_VER
418 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
420 if (max_version
== DTLS1_BAD_VER
421 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
423 /* A wildcard version of 0 could be DTLS or TLS. */
424 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
425 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
426 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
430 if (minisdtls
|| maxisdtls
) {
431 /* Do DTLS version checks. */
432 if (min_version
== 0)
433 /* Ignore DTLS1_BAD_VER */
434 min_version
= DTLS1_VERSION
;
435 if (max_version
== 0)
436 max_version
= DTLS1_2_VERSION
;
437 #ifdef OPENSSL_NO_DTLS1_2
438 if (max_version
== DTLS1_2_VERSION
)
439 max_version
= DTLS1_VERSION
;
441 #ifdef OPENSSL_NO_DTLS1
442 if (min_version
== DTLS1_VERSION
)
443 min_version
= DTLS1_2_VERSION
;
445 /* Done massaging versions; do the check. */
447 #ifdef OPENSSL_NO_DTLS1
448 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
449 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
451 #ifdef OPENSSL_NO_DTLS1_2
452 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
453 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
458 /* Regular TLS version checks. */
459 if (min_version
== 0)
460 min_version
= SSL3_VERSION
;
461 if (max_version
== 0)
462 max_version
= TLS1_3_VERSION
;
463 #ifdef OPENSSL_NO_TLS1_3
464 if (max_version
== TLS1_3_VERSION
)
465 max_version
= TLS1_2_VERSION
;
467 #ifdef OPENSSL_NO_TLS1_2
468 if (max_version
== TLS1_2_VERSION
)
469 max_version
= TLS1_1_VERSION
;
471 #ifdef OPENSSL_NO_TLS1_1
472 if (max_version
== TLS1_1_VERSION
)
473 max_version
= TLS1_VERSION
;
475 #ifdef OPENSSL_NO_TLS1
476 if (max_version
== TLS1_VERSION
)
477 max_version
= SSL3_VERSION
;
479 #ifdef OPENSSL_NO_SSL3
480 if (min_version
== SSL3_VERSION
)
481 min_version
= TLS1_VERSION
;
483 #ifdef OPENSSL_NO_TLS1
484 if (min_version
== TLS1_VERSION
)
485 min_version
= TLS1_1_VERSION
;
487 #ifdef OPENSSL_NO_TLS1_1
488 if (min_version
== TLS1_1_VERSION
)
489 min_version
= TLS1_2_VERSION
;
491 #ifdef OPENSSL_NO_TLS1_2
492 if (min_version
== TLS1_2_VERSION
)
493 min_version
= TLS1_3_VERSION
;
495 /* Done massaging versions; do the check. */
497 #ifdef OPENSSL_NO_SSL3
498 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
500 #ifdef OPENSSL_NO_TLS1
501 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
503 #ifdef OPENSSL_NO_TLS1_1
504 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
506 #ifdef OPENSSL_NO_TLS1_2
507 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
509 #ifdef OPENSSL_NO_TLS1_3
510 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
518 static void clear_ciphers(SSL
*s
)
520 /* clear the current cipher */
521 ssl_clear_cipher_ctx(s
);
522 ssl_clear_hash_ctx(&s
->read_hash
);
523 ssl_clear_hash_ctx(&s
->write_hash
);
526 int SSL_clear(SSL
*s
)
528 if (s
->method
== NULL
) {
529 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
533 if (ssl_clear_bad_session(s
)) {
534 SSL_SESSION_free(s
->session
);
537 SSL_SESSION_free(s
->psksession
);
538 s
->psksession
= NULL
;
539 OPENSSL_free(s
->psksession_id
);
540 s
->psksession_id
= NULL
;
541 s
->psksession_id_len
= 0;
547 if (s
->renegotiate
) {
548 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
552 ossl_statem_clear(s
);
554 s
->version
= s
->method
->version
;
555 s
->client_version
= s
->version
;
556 s
->rwstate
= SSL_NOTHING
;
558 BUF_MEM_free(s
->init_buf
);
563 s
->key_update
= SSL_KEY_UPDATE_NONE
;
565 /* Reset DANE verification result state */
568 X509_free(s
->dane
.mcert
);
569 s
->dane
.mcert
= NULL
;
570 s
->dane
.mtlsa
= NULL
;
572 /* Clear the verification result peername */
573 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
576 * Check to see if we were changed into a different method, if so, revert
579 if (s
->method
!= s
->ctx
->method
) {
580 s
->method
->ssl_free(s
);
581 s
->method
= s
->ctx
->method
;
582 if (!s
->method
->ssl_new(s
))
585 if (!s
->method
->ssl_clear(s
))
589 RECORD_LAYER_clear(&s
->rlayer
);
594 /** Used to change an SSL_CTXs default SSL method type */
595 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
597 STACK_OF(SSL_CIPHER
) *sk
;
601 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
602 &(ctx
->cipher_list_by_id
),
603 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
604 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
605 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
611 SSL
*SSL_new(SSL_CTX
*ctx
)
616 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
619 if (ctx
->method
== NULL
) {
620 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
624 s
= OPENSSL_zalloc(sizeof(*s
));
628 s
->lock
= CRYPTO_THREAD_lock_new();
633 * If not using the standard RAND (say for fuzzing), then don't use a
636 if (RAND_get_rand_method() == RAND_OpenSSL()) {
637 s
->drbg
= RAND_DRBG_new(NID_aes_128_ctr
, RAND_DRBG_FLAG_CTR_USE_DF
,
638 RAND_DRBG_get0_global());
640 || RAND_DRBG_instantiate(s
->drbg
, NULL
, 0) == 0) {
641 CRYPTO_THREAD_lock_free(s
->lock
);
646 RECORD_LAYER_init(&s
->rlayer
, s
);
648 s
->options
= ctx
->options
;
649 s
->dane
.flags
= ctx
->dane
.flags
;
650 s
->min_proto_version
= ctx
->min_proto_version
;
651 s
->max_proto_version
= ctx
->max_proto_version
;
653 s
->max_cert_list
= ctx
->max_cert_list
;
655 s
->max_early_data
= ctx
->max_early_data
;
658 * Earlier library versions used to copy the pointer to the CERT, not
659 * its contents; only when setting new parameters for the per-SSL
660 * copy, ssl_cert_new would be called (and the direct reference to
661 * the per-SSL_CTX settings would be lost, but those still were
662 * indirectly accessed for various purposes, and for that reason they
663 * used to be known as s->ctx->default_cert). Now we don't look at the
664 * SSL_CTX's CERT after having duplicated it once.
666 s
->cert
= ssl_cert_dup(ctx
->cert
);
670 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
671 s
->msg_callback
= ctx
->msg_callback
;
672 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
673 s
->verify_mode
= ctx
->verify_mode
;
674 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
675 s
->record_padding_cb
= ctx
->record_padding_cb
;
676 s
->record_padding_arg
= ctx
->record_padding_arg
;
677 s
->block_padding
= ctx
->block_padding
;
678 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
679 if (!ossl_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
))
681 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
682 s
->verify_callback
= ctx
->default_verify_callback
;
683 s
->generate_session_id
= ctx
->generate_session_id
;
685 s
->param
= X509_VERIFY_PARAM_new();
686 if (s
->param
== NULL
)
688 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
689 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
690 s
->max_send_fragment
= ctx
->max_send_fragment
;
691 s
->split_send_fragment
= ctx
->split_send_fragment
;
692 s
->max_pipelines
= ctx
->max_pipelines
;
693 if (s
->max_pipelines
> 1)
694 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
695 if (ctx
->default_read_buf_len
> 0)
696 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
701 s
->ext
.debug_arg
= NULL
;
702 s
->ext
.ticket_expected
= 0;
703 s
->ext
.status_type
= ctx
->ext
.status_type
;
704 s
->ext
.status_expected
= 0;
705 s
->ext
.ocsp
.ids
= NULL
;
706 s
->ext
.ocsp
.exts
= NULL
;
707 s
->ext
.ocsp
.resp
= NULL
;
708 s
->ext
.ocsp
.resp_len
= 0;
710 s
->session_ctx
= ctx
;
711 #ifndef OPENSSL_NO_EC
712 if (ctx
->ext
.ecpointformats
) {
713 s
->ext
.ecpointformats
=
714 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
715 ctx
->ext
.ecpointformats_len
);
716 if (!s
->ext
.ecpointformats
)
718 s
->ext
.ecpointformats_len
=
719 ctx
->ext
.ecpointformats_len
;
721 if (ctx
->ext
.supportedgroups
) {
722 s
->ext
.supportedgroups
=
723 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
724 ctx
->ext
.supportedgroups_len
725 * sizeof(*ctx
->ext
.supportedgroups
));
726 if (!s
->ext
.supportedgroups
)
728 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
731 #ifndef OPENSSL_NO_NEXTPROTONEG
735 if (s
->ctx
->ext
.alpn
) {
736 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
737 if (s
->ext
.alpn
== NULL
)
739 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
740 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
743 s
->verified_chain
= NULL
;
744 s
->verify_result
= X509_V_OK
;
746 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
747 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
749 s
->method
= ctx
->method
;
751 s
->key_update
= SSL_KEY_UPDATE_NONE
;
753 if (!s
->method
->ssl_new(s
))
756 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
761 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
764 #ifndef OPENSSL_NO_PSK
765 s
->psk_client_callback
= ctx
->psk_client_callback
;
766 s
->psk_server_callback
= ctx
->psk_server_callback
;
768 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
769 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
773 #ifndef OPENSSL_NO_CT
774 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
775 ctx
->ct_validation_callback_arg
))
782 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
786 int SSL_is_dtls(const SSL
*s
)
788 return SSL_IS_DTLS(s
) ? 1 : 0;
791 int SSL_up_ref(SSL
*s
)
795 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
798 REF_PRINT_COUNT("SSL", s
);
799 REF_ASSERT_ISNT(i
< 2);
800 return ((i
> 1) ? 1 : 0);
803 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
804 unsigned int sid_ctx_len
)
806 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
807 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
808 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
811 ctx
->sid_ctx_length
= sid_ctx_len
;
812 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
817 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
818 unsigned int sid_ctx_len
)
820 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
821 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
822 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
825 ssl
->sid_ctx_length
= sid_ctx_len
;
826 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
831 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
833 CRYPTO_THREAD_write_lock(ctx
->lock
);
834 ctx
->generate_session_id
= cb
;
835 CRYPTO_THREAD_unlock(ctx
->lock
);
839 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
841 CRYPTO_THREAD_write_lock(ssl
->lock
);
842 ssl
->generate_session_id
= cb
;
843 CRYPTO_THREAD_unlock(ssl
->lock
);
847 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
851 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
852 * we can "construct" a session to give us the desired check - i.e. to
853 * find if there's a session in the hash table that would conflict with
854 * any new session built out of this id/id_len and the ssl_version in use
859 if (id_len
> sizeof r
.session_id
)
862 r
.ssl_version
= ssl
->version
;
863 r
.session_id_length
= id_len
;
864 memcpy(r
.session_id
, id
, id_len
);
866 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
867 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
868 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
872 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
874 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
877 int SSL_set_purpose(SSL
*s
, int purpose
)
879 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
882 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
884 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
887 int SSL_set_trust(SSL
*s
, int trust
)
889 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
892 int SSL_set1_host(SSL
*s
, const char *hostname
)
894 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
897 int SSL_add1_host(SSL
*s
, const char *hostname
)
899 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
902 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
904 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
907 const char *SSL_get0_peername(SSL
*s
)
909 return X509_VERIFY_PARAM_get0_peername(s
->param
);
912 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
914 return dane_ctx_enable(&ctx
->dane
);
917 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
919 unsigned long orig
= ctx
->dane
.flags
;
921 ctx
->dane
.flags
|= flags
;
925 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
927 unsigned long orig
= ctx
->dane
.flags
;
929 ctx
->dane
.flags
&= ~flags
;
933 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
935 SSL_DANE
*dane
= &s
->dane
;
937 if (s
->ctx
->dane
.mdmax
== 0) {
938 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
941 if (dane
->trecs
!= NULL
) {
942 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
947 * Default SNI name. This rejects empty names, while set1_host below
948 * accepts them and disables host name checks. To avoid side-effects with
949 * invalid input, set the SNI name first.
951 if (s
->ext
.hostname
== NULL
) {
952 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
953 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
958 /* Primary RFC6125 reference identifier */
959 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
960 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
966 dane
->dctx
= &s
->ctx
->dane
;
967 dane
->trecs
= sk_danetls_record_new_null();
969 if (dane
->trecs
== NULL
) {
970 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
976 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
978 unsigned long orig
= ssl
->dane
.flags
;
980 ssl
->dane
.flags
|= flags
;
984 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
986 unsigned long orig
= ssl
->dane
.flags
;
988 ssl
->dane
.flags
&= ~flags
;
992 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
994 SSL_DANE
*dane
= &s
->dane
;
996 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1000 *mcert
= dane
->mcert
;
1002 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1007 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1008 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1010 SSL_DANE
*dane
= &s
->dane
;
1012 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1016 *usage
= dane
->mtlsa
->usage
;
1018 *selector
= dane
->mtlsa
->selector
;
1020 *mtype
= dane
->mtlsa
->mtype
;
1022 *data
= dane
->mtlsa
->data
;
1024 *dlen
= dane
->mtlsa
->dlen
;
1029 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1034 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1035 uint8_t mtype
, unsigned char *data
, size_t dlen
)
1037 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1040 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1043 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1046 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1048 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1051 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1053 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1056 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1061 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1066 void SSL_certs_clear(SSL
*s
)
1068 ssl_cert_clear_certs(s
->cert
);
1071 void SSL_free(SSL
*s
)
1078 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1079 REF_PRINT_COUNT("SSL", s
);
1082 REF_ASSERT_ISNT(i
< 0);
1084 X509_VERIFY_PARAM_free(s
->param
);
1085 dane_final(&s
->dane
);
1086 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1088 /* Ignore return value */
1089 ssl_free_wbio_buffer(s
);
1091 BIO_free_all(s
->wbio
);
1092 BIO_free_all(s
->rbio
);
1094 BUF_MEM_free(s
->init_buf
);
1096 /* add extra stuff */
1097 sk_SSL_CIPHER_free(s
->cipher_list
);
1098 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1100 /* Make the next call work :-) */
1101 if (s
->session
!= NULL
) {
1102 ssl_clear_bad_session(s
);
1103 SSL_SESSION_free(s
->session
);
1105 SSL_SESSION_free(s
->psksession
);
1106 OPENSSL_free(s
->psksession_id
);
1110 ssl_cert_free(s
->cert
);
1111 /* Free up if allocated */
1113 OPENSSL_free(s
->ext
.hostname
);
1114 SSL_CTX_free(s
->session_ctx
);
1115 #ifndef OPENSSL_NO_EC
1116 OPENSSL_free(s
->ext
.ecpointformats
);
1117 OPENSSL_free(s
->ext
.supportedgroups
);
1118 #endif /* OPENSSL_NO_EC */
1119 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1120 #ifndef OPENSSL_NO_OCSP
1121 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1123 #ifndef OPENSSL_NO_CT
1124 SCT_LIST_free(s
->scts
);
1125 OPENSSL_free(s
->ext
.scts
);
1127 OPENSSL_free(s
->ext
.ocsp
.resp
);
1128 OPENSSL_free(s
->ext
.alpn
);
1129 OPENSSL_free(s
->ext
.tls13_cookie
);
1130 OPENSSL_free(s
->clienthello
);
1132 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1134 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1136 if (s
->method
!= NULL
)
1137 s
->method
->ssl_free(s
);
1139 RECORD_LAYER_release(&s
->rlayer
);
1141 SSL_CTX_free(s
->ctx
);
1143 ASYNC_WAIT_CTX_free(s
->waitctx
);
1145 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1146 OPENSSL_free(s
->ext
.npn
);
1149 #ifndef OPENSSL_NO_SRTP
1150 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1153 RAND_DRBG_free(s
->drbg
);
1154 CRYPTO_THREAD_lock_free(s
->lock
);
1159 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1161 BIO_free_all(s
->rbio
);
1165 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1168 * If the output buffering BIO is still in place, remove it
1170 if (s
->bbio
!= NULL
)
1171 s
->wbio
= BIO_pop(s
->wbio
);
1173 BIO_free_all(s
->wbio
);
1176 /* Re-attach |bbio| to the new |wbio|. */
1177 if (s
->bbio
!= NULL
)
1178 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1181 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1184 * For historical reasons, this function has many different cases in
1185 * ownership handling.
1188 /* If nothing has changed, do nothing */
1189 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1193 * If the two arguments are equal then one fewer reference is granted by the
1194 * caller than we want to take
1196 if (rbio
!= NULL
&& rbio
== wbio
)
1200 * If only the wbio is changed only adopt one reference.
1202 if (rbio
== SSL_get_rbio(s
)) {
1203 SSL_set0_wbio(s
, wbio
);
1207 * There is an asymmetry here for historical reasons. If only the rbio is
1208 * changed AND the rbio and wbio were originally different, then we only
1209 * adopt one reference.
1211 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1212 SSL_set0_rbio(s
, rbio
);
1216 /* Otherwise, adopt both references. */
1217 SSL_set0_rbio(s
, rbio
);
1218 SSL_set0_wbio(s
, wbio
);
1221 BIO
*SSL_get_rbio(const SSL
*s
)
1226 BIO
*SSL_get_wbio(const SSL
*s
)
1228 if (s
->bbio
!= NULL
) {
1230 * If |bbio| is active, the true caller-configured BIO is its
1233 return BIO_next(s
->bbio
);
1238 int SSL_get_fd(const SSL
*s
)
1240 return SSL_get_rfd(s
);
1243 int SSL_get_rfd(const SSL
*s
)
1248 b
= SSL_get_rbio(s
);
1249 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1251 BIO_get_fd(r
, &ret
);
1255 int SSL_get_wfd(const SSL
*s
)
1260 b
= SSL_get_wbio(s
);
1261 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1263 BIO_get_fd(r
, &ret
);
1267 #ifndef OPENSSL_NO_SOCK
1268 int SSL_set_fd(SSL
*s
, int fd
)
1273 bio
= BIO_new(BIO_s_socket());
1276 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1279 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1280 SSL_set_bio(s
, bio
, bio
);
1286 int SSL_set_wfd(SSL
*s
, int fd
)
1288 BIO
*rbio
= SSL_get_rbio(s
);
1290 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1291 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1292 BIO
*bio
= BIO_new(BIO_s_socket());
1295 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1298 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1299 SSL_set0_wbio(s
, bio
);
1302 SSL_set0_wbio(s
, rbio
);
1307 int SSL_set_rfd(SSL
*s
, int fd
)
1309 BIO
*wbio
= SSL_get_wbio(s
);
1311 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1312 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1313 BIO
*bio
= BIO_new(BIO_s_socket());
1316 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1319 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1320 SSL_set0_rbio(s
, bio
);
1323 SSL_set0_rbio(s
, wbio
);
1330 /* return length of latest Finished message we sent, copy to 'buf' */
1331 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1335 if (s
->s3
!= NULL
) {
1336 ret
= s
->s3
->tmp
.finish_md_len
;
1339 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1344 /* return length of latest Finished message we expected, copy to 'buf' */
1345 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1349 if (s
->s3
!= NULL
) {
1350 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1353 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1358 int SSL_get_verify_mode(const SSL
*s
)
1360 return (s
->verify_mode
);
1363 int SSL_get_verify_depth(const SSL
*s
)
1365 return X509_VERIFY_PARAM_get_depth(s
->param
);
1368 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1369 return (s
->verify_callback
);
1372 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1374 return (ctx
->verify_mode
);
1377 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1379 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1382 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1383 return (ctx
->default_verify_callback
);
1386 void SSL_set_verify(SSL
*s
, int mode
,
1387 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1389 s
->verify_mode
= mode
;
1390 if (callback
!= NULL
)
1391 s
->verify_callback
= callback
;
1394 void SSL_set_verify_depth(SSL
*s
, int depth
)
1396 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1399 void SSL_set_read_ahead(SSL
*s
, int yes
)
1401 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1404 int SSL_get_read_ahead(const SSL
*s
)
1406 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1409 int SSL_pending(const SSL
*s
)
1411 size_t pending
= s
->method
->ssl_pending(s
);
1414 * SSL_pending cannot work properly if read-ahead is enabled
1415 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1416 * impossible to fix since SSL_pending cannot report errors that may be
1417 * observed while scanning the new data. (Note that SSL_pending() is
1418 * often used as a boolean value, so we'd better not return -1.)
1420 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1421 * we just return INT_MAX.
1423 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1426 int SSL_has_pending(const SSL
*s
)
1429 * Similar to SSL_pending() but returns a 1 to indicate that we have
1430 * unprocessed data available or 0 otherwise (as opposed to the number of
1431 * bytes available). Unlike SSL_pending() this will take into account
1432 * read_ahead data. A 1 return simply indicates that we have unprocessed
1433 * data. That data may not result in any application data, or we may fail
1434 * to parse the records for some reason.
1436 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1439 return RECORD_LAYER_read_pending(&s
->rlayer
);
1442 X509
*SSL_get_peer_certificate(const SSL
*s
)
1446 if ((s
== NULL
) || (s
->session
== NULL
))
1449 r
= s
->session
->peer
;
1459 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1463 if ((s
== NULL
) || (s
->session
== NULL
))
1466 r
= s
->session
->peer_chain
;
1469 * If we are a client, cert_chain includes the peer's own certificate; if
1470 * we are a server, it does not.
1477 * Now in theory, since the calling process own 't' it should be safe to
1478 * modify. We need to be able to read f without being hassled
1480 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1483 /* Do we need to to SSL locking? */
1484 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1489 * what if we are setup for one protocol version but want to talk another
1491 if (t
->method
!= f
->method
) {
1492 t
->method
->ssl_free(t
);
1493 t
->method
= f
->method
;
1494 if (t
->method
->ssl_new(t
) == 0)
1498 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1499 ssl_cert_free(t
->cert
);
1501 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1508 /* Fix this so it checks all the valid key/cert options */
1509 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1511 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1512 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1515 if (ctx
->cert
->key
->privatekey
== NULL
) {
1516 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1519 return (X509_check_private_key
1520 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1523 /* Fix this function so that it takes an optional type parameter */
1524 int SSL_check_private_key(const SSL
*ssl
)
1527 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1530 if (ssl
->cert
->key
->x509
== NULL
) {
1531 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1534 if (ssl
->cert
->key
->privatekey
== NULL
) {
1535 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1538 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1539 ssl
->cert
->key
->privatekey
));
1542 int SSL_waiting_for_async(SSL
*s
)
1550 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1552 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1556 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1559 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1560 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1562 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1566 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1570 int SSL_accept(SSL
*s
)
1572 if (s
->handshake_func
== NULL
) {
1573 /* Not properly initialized yet */
1574 SSL_set_accept_state(s
);
1577 return SSL_do_handshake(s
);
1580 int SSL_connect(SSL
*s
)
1582 if (s
->handshake_func
== NULL
) {
1583 /* Not properly initialized yet */
1584 SSL_set_connect_state(s
);
1587 return SSL_do_handshake(s
);
1590 long SSL_get_default_timeout(const SSL
*s
)
1592 return (s
->method
->get_timeout());
1595 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1596 int (*func
) (void *))
1599 if (s
->waitctx
== NULL
) {
1600 s
->waitctx
= ASYNC_WAIT_CTX_new();
1601 if (s
->waitctx
== NULL
)
1604 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1605 sizeof(struct ssl_async_args
))) {
1607 s
->rwstate
= SSL_NOTHING
;
1608 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1611 s
->rwstate
= SSL_ASYNC_PAUSED
;
1614 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1620 s
->rwstate
= SSL_NOTHING
;
1621 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1622 /* Shouldn't happen */
1627 static int ssl_io_intern(void *vargs
)
1629 struct ssl_async_args
*args
;
1634 args
= (struct ssl_async_args
*)vargs
;
1638 switch (args
->type
) {
1640 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1642 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1644 return args
->f
.func_other(s
);
1649 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1651 if (s
->handshake_func
== NULL
) {
1652 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1656 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1657 s
->rwstate
= SSL_NOTHING
;
1661 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1662 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1663 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1667 * If we are a client and haven't received the ServerHello etc then we
1670 ossl_statem_check_finish_init(s
, 0);
1672 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1673 struct ssl_async_args args
;
1679 args
.type
= READFUNC
;
1680 args
.f
.func_read
= s
->method
->ssl_read
;
1682 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1683 *readbytes
= s
->asyncrw
;
1686 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1690 int SSL_read(SSL
*s
, void *buf
, int num
)
1696 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1700 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1703 * The cast is safe here because ret should be <= INT_MAX because num is
1707 ret
= (int)readbytes
;
1712 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1714 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1721 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1726 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1727 return SSL_READ_EARLY_DATA_ERROR
;
1730 switch (s
->early_data_state
) {
1731 case SSL_EARLY_DATA_NONE
:
1732 if (!SSL_in_before(s
)) {
1733 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1734 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1735 return SSL_READ_EARLY_DATA_ERROR
;
1739 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1740 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1741 ret
= SSL_accept(s
);
1744 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1745 return SSL_READ_EARLY_DATA_ERROR
;
1749 case SSL_EARLY_DATA_READ_RETRY
:
1750 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1751 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1752 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1754 * State machine will update early_data_state to
1755 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1758 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1759 != SSL_EARLY_DATA_FINISHED_READING
)) {
1760 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1761 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1762 : SSL_READ_EARLY_DATA_ERROR
;
1765 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1768 return SSL_READ_EARLY_DATA_FINISH
;
1771 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1772 return SSL_READ_EARLY_DATA_ERROR
;
1776 int SSL_get_early_data_status(const SSL
*s
)
1778 return s
->ext
.early_data
;
1781 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1783 if (s
->handshake_func
== NULL
) {
1784 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1788 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1791 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1792 struct ssl_async_args args
;
1798 args
.type
= READFUNC
;
1799 args
.f
.func_read
= s
->method
->ssl_peek
;
1801 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1802 *readbytes
= s
->asyncrw
;
1805 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1809 int SSL_peek(SSL
*s
, void *buf
, int num
)
1815 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1819 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1822 * The cast is safe here because ret should be <= INT_MAX because num is
1826 ret
= (int)readbytes
;
1832 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1834 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1841 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1843 if (s
->handshake_func
== NULL
) {
1844 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1848 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1849 s
->rwstate
= SSL_NOTHING
;
1850 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1854 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1855 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1856 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1857 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1860 /* If we are a client and haven't sent the Finished we better do that */
1861 ossl_statem_check_finish_init(s
, 1);
1863 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1865 struct ssl_async_args args
;
1868 args
.buf
= (void *)buf
;
1870 args
.type
= WRITEFUNC
;
1871 args
.f
.func_write
= s
->method
->ssl_write
;
1873 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1874 *written
= s
->asyncrw
;
1877 return s
->method
->ssl_write(s
, buf
, num
, written
);
1881 int SSL_write(SSL
*s
, const void *buf
, int num
)
1887 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1891 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1894 * The cast is safe here because ret should be <= INT_MAX because num is
1903 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1905 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1912 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1914 int ret
, early_data_state
;
1916 switch (s
->early_data_state
) {
1917 case SSL_EARLY_DATA_NONE
:
1919 || !SSL_in_before(s
)
1920 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1921 && (s
->psk_use_session_cb
== NULL
))) {
1922 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1923 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1928 case SSL_EARLY_DATA_CONNECT_RETRY
:
1929 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1930 ret
= SSL_connect(s
);
1933 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1938 case SSL_EARLY_DATA_WRITE_RETRY
:
1939 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1940 ret
= SSL_write_ex(s
, buf
, num
, written
);
1941 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
1944 case SSL_EARLY_DATA_FINISHED_READING
:
1945 case SSL_EARLY_DATA_READ_RETRY
:
1946 early_data_state
= s
->early_data_state
;
1947 /* We are a server writing to an unauthenticated client */
1948 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
1949 ret
= SSL_write_ex(s
, buf
, num
, written
);
1950 s
->early_data_state
= early_data_state
;
1954 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1959 int SSL_shutdown(SSL
*s
)
1962 * Note that this function behaves differently from what one might
1963 * expect. Return values are 0 for no success (yet), 1 for success; but
1964 * calling it once is usually not enough, even if blocking I/O is used
1965 * (see ssl3_shutdown).
1968 if (s
->handshake_func
== NULL
) {
1969 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1973 if (!SSL_in_init(s
)) {
1974 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1975 struct ssl_async_args args
;
1978 args
.type
= OTHERFUNC
;
1979 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1981 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1983 return s
->method
->ssl_shutdown(s
);
1986 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1991 int SSL_key_update(SSL
*s
, int updatetype
)
1994 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
1995 * negotiated, and that it is appropriate to call SSL_key_update() instead
1996 * of SSL_renegotiate().
1998 if (!SSL_IS_TLS13(s
)) {
1999 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2003 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2004 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2005 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2009 if (!SSL_is_init_finished(s
)) {
2010 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2014 ossl_statem_set_in_init(s
, 1);
2015 s
->key_update
= updatetype
;
2019 int SSL_get_key_update_type(SSL
*s
)
2021 return s
->key_update
;
2024 int SSL_renegotiate(SSL
*s
)
2026 if (SSL_IS_TLS13(s
)) {
2027 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2031 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2032 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2039 return (s
->method
->ssl_renegotiate(s
));
2042 int SSL_renegotiate_abbreviated(SSL
*s
)
2044 if (SSL_IS_TLS13(s
)) {
2045 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2049 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2050 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2057 return (s
->method
->ssl_renegotiate(s
));
2060 int SSL_renegotiate_pending(SSL
*s
)
2063 * becomes true when negotiation is requested; false again once a
2064 * handshake has finished
2066 return (s
->renegotiate
!= 0);
2069 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2074 case SSL_CTRL_GET_READ_AHEAD
:
2075 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
2076 case SSL_CTRL_SET_READ_AHEAD
:
2077 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2078 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2081 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2082 s
->msg_callback_arg
= parg
;
2086 return (s
->mode
|= larg
);
2087 case SSL_CTRL_CLEAR_MODE
:
2088 return (s
->mode
&= ~larg
);
2089 case SSL_CTRL_GET_MAX_CERT_LIST
:
2090 return (long)(s
->max_cert_list
);
2091 case SSL_CTRL_SET_MAX_CERT_LIST
:
2094 l
= (long)s
->max_cert_list
;
2095 s
->max_cert_list
= (size_t)larg
;
2097 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2098 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2100 s
->max_send_fragment
= larg
;
2101 if (s
->max_send_fragment
< s
->split_send_fragment
)
2102 s
->split_send_fragment
= s
->max_send_fragment
;
2104 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2105 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2107 s
->split_send_fragment
= larg
;
2109 case SSL_CTRL_SET_MAX_PIPELINES
:
2110 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2112 s
->max_pipelines
= larg
;
2114 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2116 case SSL_CTRL_GET_RI_SUPPORT
:
2118 return s
->s3
->send_connection_binding
;
2121 case SSL_CTRL_CERT_FLAGS
:
2122 return (s
->cert
->cert_flags
|= larg
);
2123 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2124 return (s
->cert
->cert_flags
&= ~larg
);
2126 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2128 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2130 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2131 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2133 return TLS_CIPHER_LEN
;
2135 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2136 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2138 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2142 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2143 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2144 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2145 &s
->min_proto_version
);
2146 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2147 return s
->min_proto_version
;
2148 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2149 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2150 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2151 &s
->max_proto_version
);
2152 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2153 return s
->max_proto_version
;
2155 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
2159 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2162 case SSL_CTRL_SET_MSG_CALLBACK
:
2163 s
->msg_callback
= (void (*)
2164 (int write_p
, int version
, int content_type
,
2165 const void *buf
, size_t len
, SSL
*ssl
,
2170 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
2174 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2176 return ctx
->sessions
;
2179 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2182 /* For some cases with ctx == NULL perform syntax checks */
2185 #ifndef OPENSSL_NO_EC
2186 case SSL_CTRL_SET_GROUPS_LIST
:
2187 return tls1_set_groups_list(NULL
, NULL
, parg
);
2189 case SSL_CTRL_SET_SIGALGS_LIST
:
2190 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2191 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2198 case SSL_CTRL_GET_READ_AHEAD
:
2199 return (ctx
->read_ahead
);
2200 case SSL_CTRL_SET_READ_AHEAD
:
2201 l
= ctx
->read_ahead
;
2202 ctx
->read_ahead
= larg
;
2205 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2206 ctx
->msg_callback_arg
= parg
;
2209 case SSL_CTRL_GET_MAX_CERT_LIST
:
2210 return (long)(ctx
->max_cert_list
);
2211 case SSL_CTRL_SET_MAX_CERT_LIST
:
2214 l
= (long)ctx
->max_cert_list
;
2215 ctx
->max_cert_list
= (size_t)larg
;
2218 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2221 l
= (long)ctx
->session_cache_size
;
2222 ctx
->session_cache_size
= (size_t)larg
;
2224 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2225 return (long)(ctx
->session_cache_size
);
2226 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2227 l
= ctx
->session_cache_mode
;
2228 ctx
->session_cache_mode
= larg
;
2230 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2231 return (ctx
->session_cache_mode
);
2233 case SSL_CTRL_SESS_NUMBER
:
2234 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
2235 case SSL_CTRL_SESS_CONNECT
:
2236 return (ctx
->stats
.sess_connect
);
2237 case SSL_CTRL_SESS_CONNECT_GOOD
:
2238 return (ctx
->stats
.sess_connect_good
);
2239 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2240 return (ctx
->stats
.sess_connect_renegotiate
);
2241 case SSL_CTRL_SESS_ACCEPT
:
2242 return (ctx
->stats
.sess_accept
);
2243 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2244 return (ctx
->stats
.sess_accept_good
);
2245 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2246 return (ctx
->stats
.sess_accept_renegotiate
);
2247 case SSL_CTRL_SESS_HIT
:
2248 return (ctx
->stats
.sess_hit
);
2249 case SSL_CTRL_SESS_CB_HIT
:
2250 return (ctx
->stats
.sess_cb_hit
);
2251 case SSL_CTRL_SESS_MISSES
:
2252 return (ctx
->stats
.sess_miss
);
2253 case SSL_CTRL_SESS_TIMEOUTS
:
2254 return (ctx
->stats
.sess_timeout
);
2255 case SSL_CTRL_SESS_CACHE_FULL
:
2256 return (ctx
->stats
.sess_cache_full
);
2258 return (ctx
->mode
|= larg
);
2259 case SSL_CTRL_CLEAR_MODE
:
2260 return (ctx
->mode
&= ~larg
);
2261 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2262 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2264 ctx
->max_send_fragment
= larg
;
2265 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2266 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2268 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2269 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2271 ctx
->split_send_fragment
= larg
;
2273 case SSL_CTRL_SET_MAX_PIPELINES
:
2274 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2276 ctx
->max_pipelines
= larg
;
2278 case SSL_CTRL_CERT_FLAGS
:
2279 return (ctx
->cert
->cert_flags
|= larg
);
2280 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2281 return (ctx
->cert
->cert_flags
&= ~larg
);
2282 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2283 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2284 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2285 &ctx
->min_proto_version
);
2286 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2287 return ctx
->min_proto_version
;
2288 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2289 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2290 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2291 &ctx
->max_proto_version
);
2292 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2293 return ctx
->max_proto_version
;
2295 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
2299 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2302 case SSL_CTRL_SET_MSG_CALLBACK
:
2303 ctx
->msg_callback
= (void (*)
2304 (int write_p
, int version
, int content_type
,
2305 const void *buf
, size_t len
, SSL
*ssl
,
2310 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
2314 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2323 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2324 const SSL_CIPHER
*const *bp
)
2326 if ((*ap
)->id
> (*bp
)->id
)
2328 if ((*ap
)->id
< (*bp
)->id
)
2333 /** return a STACK of the ciphers available for the SSL and in order of
2335 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2338 if (s
->cipher_list
!= NULL
) {
2339 return (s
->cipher_list
);
2340 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2341 return (s
->ctx
->cipher_list
);
2347 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2349 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2351 return s
->session
->ciphers
;
2354 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2356 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2358 ciphers
= SSL_get_ciphers(s
);
2361 ssl_set_client_disabled(s
);
2362 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2363 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2364 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2366 sk
= sk_SSL_CIPHER_new_null();
2369 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2370 sk_SSL_CIPHER_free(sk
);
2378 /** return a STACK of the ciphers available for the SSL and in order of
2380 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2383 if (s
->cipher_list_by_id
!= NULL
) {
2384 return (s
->cipher_list_by_id
);
2385 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2386 return (s
->ctx
->cipher_list_by_id
);
2392 /** The old interface to get the same thing as SSL_get_ciphers() */
2393 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2395 const SSL_CIPHER
*c
;
2396 STACK_OF(SSL_CIPHER
) *sk
;
2400 sk
= SSL_get_ciphers(s
);
2401 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2403 c
= sk_SSL_CIPHER_value(sk
, n
);
2409 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2411 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2414 return ctx
->cipher_list
;
2418 /** specify the ciphers to be used by default by the SSL_CTX */
2419 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2421 STACK_OF(SSL_CIPHER
) *sk
;
2423 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2424 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2426 * ssl_create_cipher_list may return an empty stack if it was unable to
2427 * find a cipher matching the given rule string (for example if the rule
2428 * string specifies a cipher which has been disabled). This is not an
2429 * error as far as ssl_create_cipher_list is concerned, and hence
2430 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2434 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2435 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2441 /** specify the ciphers to be used by the SSL */
2442 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2444 STACK_OF(SSL_CIPHER
) *sk
;
2446 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2447 &s
->cipher_list_by_id
, str
, s
->cert
);
2448 /* see comment in SSL_CTX_set_cipher_list */
2451 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2452 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2458 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2461 STACK_OF(SSL_CIPHER
) *sk
;
2462 const SSL_CIPHER
*c
;
2465 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2469 sk
= s
->session
->ciphers
;
2471 if (sk_SSL_CIPHER_num(sk
) == 0)
2474 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2477 c
= sk_SSL_CIPHER_value(sk
, i
);
2478 n
= strlen(c
->name
);
2494 /** return a servername extension value if provided in Client Hello, or NULL.
2495 * So far, only host_name types are defined (RFC 3546).
2498 const char *SSL_get_servername(const SSL
*s
, const int type
)
2500 if (type
!= TLSEXT_NAMETYPE_host_name
)
2503 return s
->session
&& !s
->ext
.hostname
?
2504 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2507 int SSL_get_servername_type(const SSL
*s
)
2510 && (!s
->ext
.hostname
? s
->session
->
2511 ext
.hostname
: s
->ext
.hostname
))
2512 return TLSEXT_NAMETYPE_host_name
;
2517 * SSL_select_next_proto implements the standard protocol selection. It is
2518 * expected that this function is called from the callback set by
2519 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2520 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2521 * not included in the length. A byte string of length 0 is invalid. No byte
2522 * string may be truncated. The current, but experimental algorithm for
2523 * selecting the protocol is: 1) If the server doesn't support NPN then this
2524 * is indicated to the callback. In this case, the client application has to
2525 * abort the connection or have a default application level protocol. 2) If
2526 * the server supports NPN, but advertises an empty list then the client
2527 * selects the first protocol in its list, but indicates via the API that this
2528 * fallback case was enacted. 3) Otherwise, the client finds the first
2529 * protocol in the server's list that it supports and selects this protocol.
2530 * This is because it's assumed that the server has better information about
2531 * which protocol a client should use. 4) If the client doesn't support any
2532 * of the server's advertised protocols, then this is treated the same as
2533 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2534 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2536 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2537 const unsigned char *server
,
2538 unsigned int server_len
,
2539 const unsigned char *client
, unsigned int client_len
)
2542 const unsigned char *result
;
2543 int status
= OPENSSL_NPN_UNSUPPORTED
;
2546 * For each protocol in server preference order, see if we support it.
2548 for (i
= 0; i
< server_len
;) {
2549 for (j
= 0; j
< client_len
;) {
2550 if (server
[i
] == client
[j
] &&
2551 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2552 /* We found a match */
2553 result
= &server
[i
];
2554 status
= OPENSSL_NPN_NEGOTIATED
;
2564 /* There's no overlap between our protocols and the server's list. */
2566 status
= OPENSSL_NPN_NO_OVERLAP
;
2569 *out
= (unsigned char *)result
+ 1;
2570 *outlen
= result
[0];
2574 #ifndef OPENSSL_NO_NEXTPROTONEG
2576 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2577 * client's requested protocol for this connection and returns 0. If the
2578 * client didn't request any protocol, then *data is set to NULL. Note that
2579 * the client can request any protocol it chooses. The value returned from
2580 * this function need not be a member of the list of supported protocols
2581 * provided by the callback.
2583 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2590 *len
= (unsigned int)s
->ext
.npn_len
;
2595 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2596 * a TLS server needs a list of supported protocols for Next Protocol
2597 * Negotiation. The returned list must be in wire format. The list is
2598 * returned by setting |out| to point to it and |outlen| to its length. This
2599 * memory will not be modified, but one should assume that the SSL* keeps a
2600 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2601 * wishes to advertise. Otherwise, no such extension will be included in the
2604 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2605 SSL_CTX_npn_advertised_cb_func cb
,
2608 ctx
->ext
.npn_advertised_cb
= cb
;
2609 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2613 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2614 * client needs to select a protocol from the server's provided list. |out|
2615 * must be set to point to the selected protocol (which may be within |in|).
2616 * The length of the protocol name must be written into |outlen|. The
2617 * server's advertised protocols are provided in |in| and |inlen|. The
2618 * callback can assume that |in| is syntactically valid. The client must
2619 * select a protocol. It is fatal to the connection if this callback returns
2620 * a value other than SSL_TLSEXT_ERR_OK.
2622 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2623 SSL_CTX_npn_select_cb_func cb
,
2626 ctx
->ext
.npn_select_cb
= cb
;
2627 ctx
->ext
.npn_select_cb_arg
= arg
;
2632 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2633 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2634 * length-prefixed strings). Returns 0 on success.
2636 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2637 unsigned int protos_len
)
2639 OPENSSL_free(ctx
->ext
.alpn
);
2640 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2641 if (ctx
->ext
.alpn
== NULL
) {
2642 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2645 ctx
->ext
.alpn_len
= protos_len
;
2651 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2652 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2653 * length-prefixed strings). Returns 0 on success.
2655 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2656 unsigned int protos_len
)
2658 OPENSSL_free(ssl
->ext
.alpn
);
2659 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2660 if (ssl
->ext
.alpn
== NULL
) {
2661 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2664 ssl
->ext
.alpn_len
= protos_len
;
2670 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2671 * called during ClientHello processing in order to select an ALPN protocol
2672 * from the client's list of offered protocols.
2674 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2675 SSL_CTX_alpn_select_cb_func cb
,
2678 ctx
->ext
.alpn_select_cb
= cb
;
2679 ctx
->ext
.alpn_select_cb_arg
= arg
;
2683 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2684 * On return it sets |*data| to point to |*len| bytes of protocol name
2685 * (not including the leading length-prefix byte). If the server didn't
2686 * respond with a negotiated protocol then |*len| will be zero.
2688 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2693 *data
= ssl
->s3
->alpn_selected
;
2697 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2700 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2701 const char *label
, size_t llen
,
2702 const unsigned char *context
, size_t contextlen
,
2705 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2708 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2710 contextlen
, use_context
);
2713 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2715 const unsigned char *session_id
= a
->session_id
;
2717 unsigned char tmp_storage
[4];
2719 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2720 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2721 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2722 session_id
= tmp_storage
;
2726 ((unsigned long)session_id
[0]) |
2727 ((unsigned long)session_id
[1] << 8L) |
2728 ((unsigned long)session_id
[2] << 16L) |
2729 ((unsigned long)session_id
[3] << 24L);
2734 * NB: If this function (or indeed the hash function which uses a sort of
2735 * coarser function than this one) is changed, ensure
2736 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2737 * being able to construct an SSL_SESSION that will collide with any existing
2738 * session with a matching session ID.
2740 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2742 if (a
->ssl_version
!= b
->ssl_version
)
2744 if (a
->session_id_length
!= b
->session_id_length
)
2746 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2750 * These wrapper functions should remain rather than redeclaring
2751 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2752 * variable. The reason is that the functions aren't static, they're exposed
2756 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2758 SSL_CTX
*ret
= NULL
;
2761 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2765 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2768 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2769 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2772 ret
= OPENSSL_zalloc(sizeof(*ret
));
2777 ret
->min_proto_version
= 0;
2778 ret
->max_proto_version
= 0;
2779 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2780 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2781 /* We take the system default. */
2782 ret
->session_timeout
= meth
->get_timeout();
2783 ret
->references
= 1;
2784 ret
->lock
= CRYPTO_THREAD_lock_new();
2785 if (ret
->lock
== NULL
) {
2786 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2790 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2791 ret
->verify_mode
= SSL_VERIFY_NONE
;
2792 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2795 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2796 if (ret
->sessions
== NULL
)
2798 ret
->cert_store
= X509_STORE_new();
2799 if (ret
->cert_store
== NULL
)
2801 #ifndef OPENSSL_NO_CT
2802 ret
->ctlog_store
= CTLOG_STORE_new();
2803 if (ret
->ctlog_store
== NULL
)
2806 if (!ssl_create_cipher_list(ret
->method
,
2807 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2808 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2809 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2810 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2814 ret
->param
= X509_VERIFY_PARAM_new();
2815 if (ret
->param
== NULL
)
2818 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2819 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2822 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2823 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2827 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2830 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2833 /* No compression for DTLS */
2834 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2835 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2837 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2838 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2840 /* Setup RFC5077 ticket keys */
2841 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2842 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2843 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2844 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2845 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2846 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2847 ret
->options
|= SSL_OP_NO_TICKET
;
2849 #ifndef OPENSSL_NO_SRP
2850 if (!SSL_CTX_SRP_CTX_init(ret
))
2853 #ifndef OPENSSL_NO_ENGINE
2854 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2855 # define eng_strx(x) #x
2856 # define eng_str(x) eng_strx(x)
2857 /* Use specific client engine automatically... ignore errors */
2860 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2863 ENGINE_load_builtin_engines();
2864 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2866 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2872 * Default is to connect to non-RI servers. When RI is more widely
2873 * deployed might change this.
2875 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2877 * Disable compression by default to prevent CRIME. Applications can
2878 * re-enable compression by configuring
2879 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2880 * or by using the SSL_CONF library.
2882 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2884 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
2887 * Default max early data is a fully loaded single record. Could be split
2888 * across multiple records in practice
2890 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
2894 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2900 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
2904 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
2907 REF_PRINT_COUNT("SSL_CTX", ctx
);
2908 REF_ASSERT_ISNT(i
< 2);
2909 return ((i
> 1) ? 1 : 0);
2912 void SSL_CTX_free(SSL_CTX
*a
)
2919 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
2920 REF_PRINT_COUNT("SSL_CTX", a
);
2923 REF_ASSERT_ISNT(i
< 0);
2925 X509_VERIFY_PARAM_free(a
->param
);
2926 dane_ctx_final(&a
->dane
);
2929 * Free internal session cache. However: the remove_cb() may reference
2930 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2931 * after the sessions were flushed.
2932 * As the ex_data handling routines might also touch the session cache,
2933 * the most secure solution seems to be: empty (flush) the cache, then
2934 * free ex_data, then finally free the cache.
2935 * (See ticket [openssl.org #212].)
2937 if (a
->sessions
!= NULL
)
2938 SSL_CTX_flush_sessions(a
, 0);
2940 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2941 lh_SSL_SESSION_free(a
->sessions
);
2942 X509_STORE_free(a
->cert_store
);
2943 #ifndef OPENSSL_NO_CT
2944 CTLOG_STORE_free(a
->ctlog_store
);
2946 sk_SSL_CIPHER_free(a
->cipher_list
);
2947 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2948 ssl_cert_free(a
->cert
);
2949 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
2950 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2951 a
->comp_methods
= NULL
;
2952 #ifndef OPENSSL_NO_SRTP
2953 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2955 #ifndef OPENSSL_NO_SRP
2956 SSL_CTX_SRP_CTX_free(a
);
2958 #ifndef OPENSSL_NO_ENGINE
2959 ENGINE_finish(a
->client_cert_engine
);
2962 #ifndef OPENSSL_NO_EC
2963 OPENSSL_free(a
->ext
.ecpointformats
);
2964 OPENSSL_free(a
->ext
.supportedgroups
);
2966 OPENSSL_free(a
->ext
.alpn
);
2968 CRYPTO_THREAD_lock_free(a
->lock
);
2973 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2975 ctx
->default_passwd_callback
= cb
;
2978 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2980 ctx
->default_passwd_callback_userdata
= u
;
2983 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2985 return ctx
->default_passwd_callback
;
2988 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2990 return ctx
->default_passwd_callback_userdata
;
2993 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2995 s
->default_passwd_callback
= cb
;
2998 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3000 s
->default_passwd_callback_userdata
= u
;
3003 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3005 return s
->default_passwd_callback
;
3008 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3010 return s
->default_passwd_callback_userdata
;
3013 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3014 int (*cb
) (X509_STORE_CTX
*, void *),
3017 ctx
->app_verify_callback
= cb
;
3018 ctx
->app_verify_arg
= arg
;
3021 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3022 int (*cb
) (int, X509_STORE_CTX
*))
3024 ctx
->verify_mode
= mode
;
3025 ctx
->default_verify_callback
= cb
;
3028 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3030 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3033 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3035 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3038 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3040 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3043 void ssl_set_masks(SSL
*s
)
3046 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3047 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3048 unsigned long mask_k
, mask_a
;
3049 #ifndef OPENSSL_NO_EC
3050 int have_ecc_cert
, ecdsa_ok
;
3055 #ifndef OPENSSL_NO_DH
3056 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3061 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3062 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3063 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3064 #ifndef OPENSSL_NO_EC
3065 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3071 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3072 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3075 #ifndef OPENSSL_NO_GOST
3076 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3077 mask_k
|= SSL_kGOST
;
3078 mask_a
|= SSL_aGOST12
;
3080 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3081 mask_k
|= SSL_kGOST
;
3082 mask_a
|= SSL_aGOST12
;
3084 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3085 mask_k
|= SSL_kGOST
;
3086 mask_a
|= SSL_aGOST01
;
3097 * If we only have an RSA-PSS certificate allow RSA authentication
3098 * if TLS 1.2 and peer supports it.
3101 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3102 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3103 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3110 mask_a
|= SSL_aNULL
;
3113 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3114 * depending on the key usage extension.
3116 #ifndef OPENSSL_NO_EC
3117 if (have_ecc_cert
) {
3119 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3120 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3121 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3124 mask_a
|= SSL_aECDSA
;
3126 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3127 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3128 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3129 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3130 mask_a
|= SSL_aECDSA
;
3133 #ifndef OPENSSL_NO_EC
3134 mask_k
|= SSL_kECDHE
;
3137 #ifndef OPENSSL_NO_PSK
3140 if (mask_k
& SSL_kRSA
)
3141 mask_k
|= SSL_kRSAPSK
;
3142 if (mask_k
& SSL_kDHE
)
3143 mask_k
|= SSL_kDHEPSK
;
3144 if (mask_k
& SSL_kECDHE
)
3145 mask_k
|= SSL_kECDHEPSK
;
3148 s
->s3
->tmp
.mask_k
= mask_k
;
3149 s
->s3
->tmp
.mask_a
= mask_a
;
3152 #ifndef OPENSSL_NO_EC
3154 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3156 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3157 /* key usage, if present, must allow signing */
3158 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3159 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3160 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3164 return 1; /* all checks are ok */
3169 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3170 size_t *serverinfo_length
)
3172 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3173 *serverinfo_length
= 0;
3175 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3178 *serverinfo
= cpk
->serverinfo
;
3179 *serverinfo_length
= cpk
->serverinfo_length
;
3183 void ssl_update_cache(SSL
*s
, int mode
)
3188 * If the session_id_length is 0, we are not supposed to cache it, and it
3189 * would be rather hard to do anyway :-)
3191 if (s
->session
->session_id_length
== 0)
3194 i
= s
->session_ctx
->session_cache_mode
;
3196 && (!s
->hit
|| SSL_IS_TLS13(s
))
3197 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) != 0
3198 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3199 && s
->session_ctx
->new_session_cb
!= NULL
) {
3200 SSL_SESSION_up_ref(s
->session
);
3201 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3202 SSL_SESSION_free(s
->session
);
3205 /* auto flush every 255 connections */
3206 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3207 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
3208 ? s
->session_ctx
->stats
.sess_connect_good
3209 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
3210 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3215 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3220 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3225 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3229 if (s
->method
!= meth
) {
3230 const SSL_METHOD
*sm
= s
->method
;
3231 int (*hf
) (SSL
*) = s
->handshake_func
;
3233 if (sm
->version
== meth
->version
)
3238 ret
= s
->method
->ssl_new(s
);
3241 if (hf
== sm
->ssl_connect
)
3242 s
->handshake_func
= meth
->ssl_connect
;
3243 else if (hf
== sm
->ssl_accept
)
3244 s
->handshake_func
= meth
->ssl_accept
;
3249 int SSL_get_error(const SSL
*s
, int i
)
3256 return (SSL_ERROR_NONE
);
3259 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3260 * where we do encode the error
3262 if ((l
= ERR_peek_error()) != 0) {
3263 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3264 return (SSL_ERROR_SYSCALL
);
3266 return (SSL_ERROR_SSL
);
3269 if (SSL_want_read(s
)) {
3270 bio
= SSL_get_rbio(s
);
3271 if (BIO_should_read(bio
))
3272 return (SSL_ERROR_WANT_READ
);
3273 else if (BIO_should_write(bio
))
3275 * This one doesn't make too much sense ... We never try to write
3276 * to the rbio, and an application program where rbio and wbio
3277 * are separate couldn't even know what it should wait for.
3278 * However if we ever set s->rwstate incorrectly (so that we have
3279 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3280 * wbio *are* the same, this test works around that bug; so it
3281 * might be safer to keep it.
3283 return (SSL_ERROR_WANT_WRITE
);
3284 else if (BIO_should_io_special(bio
)) {
3285 reason
= BIO_get_retry_reason(bio
);
3286 if (reason
== BIO_RR_CONNECT
)
3287 return (SSL_ERROR_WANT_CONNECT
);
3288 else if (reason
== BIO_RR_ACCEPT
)
3289 return (SSL_ERROR_WANT_ACCEPT
);
3291 return (SSL_ERROR_SYSCALL
); /* unknown */
3295 if (SSL_want_write(s
)) {
3296 /* Access wbio directly - in order to use the buffered bio if present */
3298 if (BIO_should_write(bio
))
3299 return (SSL_ERROR_WANT_WRITE
);
3300 else if (BIO_should_read(bio
))
3302 * See above (SSL_want_read(s) with BIO_should_write(bio))
3304 return (SSL_ERROR_WANT_READ
);
3305 else if (BIO_should_io_special(bio
)) {
3306 reason
= BIO_get_retry_reason(bio
);
3307 if (reason
== BIO_RR_CONNECT
)
3308 return (SSL_ERROR_WANT_CONNECT
);
3309 else if (reason
== BIO_RR_ACCEPT
)
3310 return (SSL_ERROR_WANT_ACCEPT
);
3312 return (SSL_ERROR_SYSCALL
);
3315 if (SSL_want_x509_lookup(s
))
3316 return (SSL_ERROR_WANT_X509_LOOKUP
);
3317 if (SSL_want_async(s
))
3318 return SSL_ERROR_WANT_ASYNC
;
3319 if (SSL_want_async_job(s
))
3320 return SSL_ERROR_WANT_ASYNC_JOB
;
3321 if (SSL_want_client_hello_cb(s
))
3322 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3324 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3325 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3326 return (SSL_ERROR_ZERO_RETURN
);
3328 return (SSL_ERROR_SYSCALL
);
3331 static int ssl_do_handshake_intern(void *vargs
)
3333 struct ssl_async_args
*args
;
3336 args
= (struct ssl_async_args
*)vargs
;
3339 return s
->handshake_func(s
);
3342 int SSL_do_handshake(SSL
*s
)
3346 if (s
->handshake_func
== NULL
) {
3347 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3351 ossl_statem_check_finish_init(s
, -1);
3353 s
->method
->ssl_renegotiate_check(s
, 0);
3355 if (SSL_is_server(s
)) {
3356 /* clear SNI settings at server-side */
3357 OPENSSL_free(s
->ext
.hostname
);
3358 s
->ext
.hostname
= NULL
;
3361 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3362 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3363 struct ssl_async_args args
;
3367 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3369 ret
= s
->handshake_func(s
);
3375 void SSL_set_accept_state(SSL
*s
)
3379 ossl_statem_clear(s
);
3380 s
->handshake_func
= s
->method
->ssl_accept
;
3384 void SSL_set_connect_state(SSL
*s
)
3388 ossl_statem_clear(s
);
3389 s
->handshake_func
= s
->method
->ssl_connect
;
3393 int ssl_undefined_function(SSL
*s
)
3395 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3399 int ssl_undefined_void_function(void)
3401 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3402 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3406 int ssl_undefined_const_function(const SSL
*s
)
3411 const SSL_METHOD
*ssl_bad_method(int ver
)
3413 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3417 const char *ssl_protocol_to_string(int version
)
3421 case TLS1_3_VERSION
:
3424 case TLS1_2_VERSION
:
3427 case TLS1_1_VERSION
:
3442 case DTLS1_2_VERSION
:
3450 const char *SSL_get_version(const SSL
*s
)
3452 return ssl_protocol_to_string(s
->version
);
3455 SSL
*SSL_dup(SSL
*s
)
3457 STACK_OF(X509_NAME
) *sk
;
3462 /* If we're not quiescent, just up_ref! */
3463 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3464 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3469 * Otherwise, copy configuration state, and session if set.
3471 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3474 if (s
->session
!= NULL
) {
3476 * Arranges to share the same session via up_ref. This "copies"
3477 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3479 if (!SSL_copy_session_id(ret
, s
))
3483 * No session has been established yet, so we have to expect that
3484 * s->cert or ret->cert will be changed later -- they should not both
3485 * point to the same object, and thus we can't use
3486 * SSL_copy_session_id.
3488 if (!SSL_set_ssl_method(ret
, s
->method
))
3491 if (s
->cert
!= NULL
) {
3492 ssl_cert_free(ret
->cert
);
3493 ret
->cert
= ssl_cert_dup(s
->cert
);
3494 if (ret
->cert
== NULL
)
3498 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3499 (int)s
->sid_ctx_length
))
3503 if (!ssl_dane_dup(ret
, s
))
3505 ret
->version
= s
->version
;
3506 ret
->options
= s
->options
;
3507 ret
->mode
= s
->mode
;
3508 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3509 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3510 ret
->msg_callback
= s
->msg_callback
;
3511 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3512 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3513 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3514 ret
->generate_session_id
= s
->generate_session_id
;
3516 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3518 /* copy app data, a little dangerous perhaps */
3519 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3522 /* setup rbio, and wbio */
3523 if (s
->rbio
!= NULL
) {
3524 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3527 if (s
->wbio
!= NULL
) {
3528 if (s
->wbio
!= s
->rbio
) {
3529 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3532 BIO_up_ref(ret
->rbio
);
3533 ret
->wbio
= ret
->rbio
;
3537 ret
->server
= s
->server
;
3538 if (s
->handshake_func
) {
3540 SSL_set_accept_state(ret
);
3542 SSL_set_connect_state(ret
);
3544 ret
->shutdown
= s
->shutdown
;
3547 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3548 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3550 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3552 /* dup the cipher_list and cipher_list_by_id stacks */
3553 if (s
->cipher_list
!= NULL
) {
3554 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3557 if (s
->cipher_list_by_id
!= NULL
)
3558 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3562 /* Dup the client_CA list */
3563 if (s
->ca_names
!= NULL
) {
3564 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3567 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3568 xn
= sk_X509_NAME_value(sk
, i
);
3569 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3582 void ssl_clear_cipher_ctx(SSL
*s
)
3584 if (s
->enc_read_ctx
!= NULL
) {
3585 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3586 s
->enc_read_ctx
= NULL
;
3588 if (s
->enc_write_ctx
!= NULL
) {
3589 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3590 s
->enc_write_ctx
= NULL
;
3592 #ifndef OPENSSL_NO_COMP
3593 COMP_CTX_free(s
->expand
);
3595 COMP_CTX_free(s
->compress
);
3600 X509
*SSL_get_certificate(const SSL
*s
)
3602 if (s
->cert
!= NULL
)
3603 return (s
->cert
->key
->x509
);
3608 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3610 if (s
->cert
!= NULL
)
3611 return (s
->cert
->key
->privatekey
);
3616 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3618 if (ctx
->cert
!= NULL
)
3619 return ctx
->cert
->key
->x509
;
3624 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3626 if (ctx
->cert
!= NULL
)
3627 return ctx
->cert
->key
->privatekey
;
3632 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3634 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3635 return (s
->session
->cipher
);
3639 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3641 return s
->s3
->tmp
.new_cipher
;
3644 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3646 #ifndef OPENSSL_NO_COMP
3647 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3653 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3655 #ifndef OPENSSL_NO_COMP
3656 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3662 int ssl_init_wbio_buffer(SSL
*s
)
3666 if (s
->bbio
!= NULL
) {
3667 /* Already buffered. */
3671 bbio
= BIO_new(BIO_f_buffer());
3672 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3674 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3678 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3683 int ssl_free_wbio_buffer(SSL
*s
)
3685 /* callers ensure s is never null */
3686 if (s
->bbio
== NULL
)
3689 s
->wbio
= BIO_pop(s
->wbio
);
3690 if (!ossl_assert(s
->wbio
!= NULL
))
3698 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3700 ctx
->quiet_shutdown
= mode
;
3703 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3705 return (ctx
->quiet_shutdown
);
3708 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3710 s
->quiet_shutdown
= mode
;
3713 int SSL_get_quiet_shutdown(const SSL
*s
)
3715 return (s
->quiet_shutdown
);
3718 void SSL_set_shutdown(SSL
*s
, int mode
)
3723 int SSL_get_shutdown(const SSL
*s
)
3728 int SSL_version(const SSL
*s
)
3733 int SSL_client_version(const SSL
*s
)
3735 return s
->client_version
;
3738 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3743 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3746 if (ssl
->ctx
== ctx
)
3749 ctx
= ssl
->session_ctx
;
3750 new_cert
= ssl_cert_dup(ctx
->cert
);
3751 if (new_cert
== NULL
) {
3755 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3756 ssl_cert_free(new_cert
);
3760 ssl_cert_free(ssl
->cert
);
3761 ssl
->cert
= new_cert
;
3764 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3765 * so setter APIs must prevent invalid lengths from entering the system.
3767 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3771 * If the session ID context matches that of the parent SSL_CTX,
3772 * inherit it from the new SSL_CTX as well. If however the context does
3773 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3774 * leave it unchanged.
3776 if ((ssl
->ctx
!= NULL
) &&
3777 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3778 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3779 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3780 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3783 SSL_CTX_up_ref(ctx
);
3784 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3790 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3792 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3795 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3797 X509_LOOKUP
*lookup
;
3799 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3802 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3804 /* Clear any errors if the default directory does not exist */
3810 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3812 X509_LOOKUP
*lookup
;
3814 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3818 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3820 /* Clear any errors if the default file does not exist */
3826 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3829 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3832 void SSL_set_info_callback(SSL
*ssl
,
3833 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3835 ssl
->info_callback
= cb
;
3839 * One compiler (Diab DCC) doesn't like argument names in returned function
3842 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3845 return ssl
->info_callback
;
3848 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3850 ssl
->verify_result
= arg
;
3853 long SSL_get_verify_result(const SSL
*ssl
)
3855 return (ssl
->verify_result
);
3858 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3861 return sizeof(ssl
->s3
->client_random
);
3862 if (outlen
> sizeof(ssl
->s3
->client_random
))
3863 outlen
= sizeof(ssl
->s3
->client_random
);
3864 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3868 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3871 return sizeof(ssl
->s3
->server_random
);
3872 if (outlen
> sizeof(ssl
->s3
->server_random
))
3873 outlen
= sizeof(ssl
->s3
->server_random
);
3874 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3878 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3879 unsigned char *out
, size_t outlen
)
3882 return session
->master_key_length
;
3883 if (outlen
> session
->master_key_length
)
3884 outlen
= session
->master_key_length
;
3885 memcpy(out
, session
->master_key
, outlen
);
3889 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
3892 if (len
> sizeof(sess
->master_key
))
3895 memcpy(sess
->master_key
, in
, len
);
3896 sess
->master_key_length
= len
;
3901 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3903 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3906 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3908 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3911 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3913 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3916 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3918 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3921 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3923 return (ctx
->cert_store
);
3926 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3928 X509_STORE_free(ctx
->cert_store
);
3929 ctx
->cert_store
= store
;
3932 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3935 X509_STORE_up_ref(store
);
3936 SSL_CTX_set_cert_store(ctx
, store
);
3939 int SSL_want(const SSL
*s
)
3941 return (s
->rwstate
);
3945 * \brief Set the callback for generating temporary DH keys.
3946 * \param ctx the SSL context.
3947 * \param dh the callback
3950 #ifndef OPENSSL_NO_DH
3951 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3952 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3955 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3958 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3961 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3965 #ifndef OPENSSL_NO_PSK
3966 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3968 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3969 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3972 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3973 if (identity_hint
!= NULL
) {
3974 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3975 if (ctx
->cert
->psk_identity_hint
== NULL
)
3978 ctx
->cert
->psk_identity_hint
= NULL
;
3982 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3987 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3988 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3991 OPENSSL_free(s
->cert
->psk_identity_hint
);
3992 if (identity_hint
!= NULL
) {
3993 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3994 if (s
->cert
->psk_identity_hint
== NULL
)
3997 s
->cert
->psk_identity_hint
= NULL
;
4001 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4003 if (s
== NULL
|| s
->session
== NULL
)
4005 return (s
->session
->psk_identity_hint
);
4008 const char *SSL_get_psk_identity(const SSL
*s
)
4010 if (s
== NULL
|| s
->session
== NULL
)
4012 return (s
->session
->psk_identity
);
4015 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4017 s
->psk_client_callback
= cb
;
4020 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4022 ctx
->psk_client_callback
= cb
;
4025 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4027 s
->psk_server_callback
= cb
;
4030 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4032 ctx
->psk_server_callback
= cb
;
4036 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4038 s
->psk_find_session_cb
= cb
;
4041 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4042 SSL_psk_find_session_cb_func cb
)
4044 ctx
->psk_find_session_cb
= cb
;
4047 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4049 s
->psk_use_session_cb
= cb
;
4052 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4053 SSL_psk_use_session_cb_func cb
)
4055 ctx
->psk_use_session_cb
= cb
;
4058 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4059 void (*cb
) (int write_p
, int version
,
4060 int content_type
, const void *buf
,
4061 size_t len
, SSL
*ssl
, void *arg
))
4063 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4066 void SSL_set_msg_callback(SSL
*ssl
,
4067 void (*cb
) (int write_p
, int version
,
4068 int content_type
, const void *buf
,
4069 size_t len
, SSL
*ssl
, void *arg
))
4071 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4074 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4075 int (*cb
) (SSL
*ssl
,
4079 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4080 (void (*)(void))cb
);
4083 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4084 int (*cb
) (SSL
*ssl
,
4085 int is_forward_secure
))
4087 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4088 (void (*)(void))cb
);
4091 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4092 size_t (*cb
) (SSL
*ssl
, int type
,
4093 size_t len
, void *arg
))
4095 ctx
->record_padding_cb
= cb
;
4098 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4100 ctx
->record_padding_arg
= arg
;
4103 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4105 return ctx
->record_padding_arg
;
4108 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4110 /* block size of 0 or 1 is basically no padding */
4111 if (block_size
== 1)
4112 ctx
->block_padding
= 0;
4113 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4114 ctx
->block_padding
= block_size
;
4120 void SSL_set_record_padding_callback(SSL
*ssl
,
4121 size_t (*cb
) (SSL
*ssl
, int type
,
4122 size_t len
, void *arg
))
4124 ssl
->record_padding_cb
= cb
;
4127 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4129 ssl
->record_padding_arg
= arg
;
4132 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4134 return ssl
->record_padding_arg
;
4137 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4139 /* block size of 0 or 1 is basically no padding */
4140 if (block_size
== 1)
4141 ssl
->block_padding
= 0;
4142 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4143 ssl
->block_padding
= block_size
;
4150 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4151 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4152 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4153 * Returns the newly allocated ctx;
4156 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4158 ssl_clear_hash_ctx(hash
);
4159 *hash
= EVP_MD_CTX_new();
4160 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4161 EVP_MD_CTX_free(*hash
);
4168 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4171 EVP_MD_CTX_free(*hash
);
4175 /* Retrieve handshake hashes */
4176 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4179 EVP_MD_CTX
*ctx
= NULL
;
4180 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4181 int hashleni
= EVP_MD_CTX_size(hdgst
);
4184 if (hashleni
< 0 || (size_t)hashleni
> outlen
)
4187 ctx
= EVP_MD_CTX_new();
4191 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4192 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
4195 *hashlen
= hashleni
;
4199 EVP_MD_CTX_free(ctx
);
4203 int SSL_session_reused(SSL
*s
)
4208 int SSL_is_server(const SSL
*s
)
4213 #if OPENSSL_API_COMPAT < 0x10100000L
4214 void SSL_set_debug(SSL
*s
, int debug
)
4216 /* Old function was do-nothing anyway... */
4222 void SSL_set_security_level(SSL
*s
, int level
)
4224 s
->cert
->sec_level
= level
;
4227 int SSL_get_security_level(const SSL
*s
)
4229 return s
->cert
->sec_level
;
4232 void SSL_set_security_callback(SSL
*s
,
4233 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4234 int op
, int bits
, int nid
,
4235 void *other
, void *ex
))
4237 s
->cert
->sec_cb
= cb
;
4240 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4241 const SSL_CTX
*ctx
, int op
,
4242 int bits
, int nid
, void *other
,
4244 return s
->cert
->sec_cb
;
4247 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4249 s
->cert
->sec_ex
= ex
;
4252 void *SSL_get0_security_ex_data(const SSL
*s
)
4254 return s
->cert
->sec_ex
;
4257 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4259 ctx
->cert
->sec_level
= level
;
4262 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4264 return ctx
->cert
->sec_level
;
4267 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4268 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4269 int op
, int bits
, int nid
,
4270 void *other
, void *ex
))
4272 ctx
->cert
->sec_cb
= cb
;
4275 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4281 return ctx
->cert
->sec_cb
;
4284 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4286 ctx
->cert
->sec_ex
= ex
;
4289 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4291 return ctx
->cert
->sec_ex
;
4295 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4296 * can return unsigned long, instead of the generic long return value from the
4297 * control interface.
4299 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4301 return ctx
->options
;
4304 unsigned long SSL_get_options(const SSL
*s
)
4309 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4311 return ctx
->options
|= op
;
4314 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4316 return s
->options
|= op
;
4319 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4321 return ctx
->options
&= ~op
;
4324 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4326 return s
->options
&= ~op
;
4329 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4331 return s
->verified_chain
;
4334 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4336 #ifndef OPENSSL_NO_CT
4339 * Moves SCTs from the |src| stack to the |dst| stack.
4340 * The source of each SCT will be set to |origin|.
4341 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4343 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4345 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4346 sct_source_t origin
)
4352 *dst
= sk_SCT_new_null();
4354 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4359 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4360 if (SCT_set_source(sct
, origin
) != 1)
4363 if (sk_SCT_push(*dst
, sct
) <= 0)
4371 sk_SCT_push(src
, sct
); /* Put the SCT back */
4376 * Look for data collected during ServerHello and parse if found.
4377 * Returns the number of SCTs extracted.
4379 static int ct_extract_tls_extension_scts(SSL
*s
)
4381 int scts_extracted
= 0;
4383 if (s
->ext
.scts
!= NULL
) {
4384 const unsigned char *p
= s
->ext
.scts
;
4385 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4387 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4389 SCT_LIST_free(scts
);
4392 return scts_extracted
;
4396 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4397 * contains an SCT X509 extension. They will be stored in |s->scts|.
4399 * - The number of SCTs extracted, assuming an OCSP response exists.
4400 * - 0 if no OCSP response exists or it contains no SCTs.
4401 * - A negative integer if an error occurs.
4403 static int ct_extract_ocsp_response_scts(SSL
*s
)
4405 # ifndef OPENSSL_NO_OCSP
4406 int scts_extracted
= 0;
4407 const unsigned char *p
;
4408 OCSP_BASICRESP
*br
= NULL
;
4409 OCSP_RESPONSE
*rsp
= NULL
;
4410 STACK_OF(SCT
) *scts
= NULL
;
4413 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4416 p
= s
->ext
.ocsp
.resp
;
4417 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4421 br
= OCSP_response_get1_basic(rsp
);
4425 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4426 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4432 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4434 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4435 if (scts_extracted
< 0)
4439 SCT_LIST_free(scts
);
4440 OCSP_BASICRESP_free(br
);
4441 OCSP_RESPONSE_free(rsp
);
4442 return scts_extracted
;
4444 /* Behave as if no OCSP response exists */
4450 * Attempts to extract SCTs from the peer certificate.
4451 * Return the number of SCTs extracted, or a negative integer if an error
4454 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4456 int scts_extracted
= 0;
4457 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4460 STACK_OF(SCT
) *scts
=
4461 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4464 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4466 SCT_LIST_free(scts
);
4469 return scts_extracted
;
4473 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4474 * response (if it exists) and X509v3 extensions in the certificate.
4475 * Returns NULL if an error occurs.
4477 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4479 if (!s
->scts_parsed
) {
4480 if (ct_extract_tls_extension_scts(s
) < 0 ||
4481 ct_extract_ocsp_response_scts(s
) < 0 ||
4482 ct_extract_x509v3_extension_scts(s
) < 0)
4492 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4493 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4498 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4499 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4501 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4504 for (i
= 0; i
< count
; ++i
) {
4505 SCT
*sct
= sk_SCT_value(scts
, i
);
4506 int status
= SCT_get_validation_status(sct
);
4508 if (status
== SCT_VALIDATION_STATUS_VALID
)
4511 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4515 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4519 * Since code exists that uses the custom extension handler for CT, look
4520 * for this and throw an error if they have already registered to use CT.
4522 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4523 TLSEXT_TYPE_signed_certificate_timestamp
))
4525 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4526 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4530 if (callback
!= NULL
) {
4532 * If we are validating CT, then we MUST accept SCTs served via OCSP
4534 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4538 s
->ct_validation_callback
= callback
;
4539 s
->ct_validation_callback_arg
= arg
;
4544 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4545 ssl_ct_validation_cb callback
, void *arg
)
4548 * Since code exists that uses the custom extension handler for CT, look for
4549 * this and throw an error if they have already registered to use CT.
4551 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4552 TLSEXT_TYPE_signed_certificate_timestamp
))
4554 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4555 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4559 ctx
->ct_validation_callback
= callback
;
4560 ctx
->ct_validation_callback_arg
= arg
;
4564 int SSL_ct_is_enabled(const SSL
*s
)
4566 return s
->ct_validation_callback
!= NULL
;
4569 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4571 return ctx
->ct_validation_callback
!= NULL
;
4574 int ssl_validate_ct(SSL
*s
)
4577 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4579 SSL_DANE
*dane
= &s
->dane
;
4580 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4581 const STACK_OF(SCT
) *scts
;
4584 * If no callback is set, the peer is anonymous, or its chain is invalid,
4585 * skip SCT validation - just return success. Applications that continue
4586 * handshakes without certificates, with unverified chains, or pinned leaf
4587 * certificates are outside the scope of the WebPKI and CT.
4589 * The above exclusions notwithstanding the vast majority of peers will
4590 * have rather ordinary certificate chains validated by typical
4591 * applications that perform certificate verification and therefore will
4592 * process SCTs when enabled.
4594 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4595 s
->verify_result
!= X509_V_OK
||
4596 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4600 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4601 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4603 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4604 switch (dane
->mtlsa
->usage
) {
4605 case DANETLS_USAGE_DANE_TA
:
4606 case DANETLS_USAGE_DANE_EE
:
4611 ctx
= CT_POLICY_EVAL_CTX_new();
4613 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4617 issuer
= sk_X509_value(s
->verified_chain
, 1);
4618 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4619 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4620 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4621 CT_POLICY_EVAL_CTX_set_time(
4622 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4624 scts
= SSL_get0_peer_scts(s
);
4627 * This function returns success (> 0) only when all the SCTs are valid, 0
4628 * when some are invalid, and < 0 on various internal errors (out of
4629 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4630 * reason to abort the handshake, that decision is up to the callback.
4631 * Therefore, we error out only in the unexpected case that the return
4632 * value is negative.
4634 * XXX: One might well argue that the return value of this function is an
4635 * unfortunate design choice. Its job is only to determine the validation
4636 * status of each of the provided SCTs. So long as it correctly separates
4637 * the wheat from the chaff it should return success. Failure in this case
4638 * ought to correspond to an inability to carry out its duties.
4640 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4641 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4645 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4647 ret
= 0; /* This function returns 0 on failure */
4650 CT_POLICY_EVAL_CTX_free(ctx
);
4652 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4653 * failure return code here. Also the application may wish the complete
4654 * the handshake, and then disconnect cleanly at a higher layer, after
4655 * checking the verification status of the completed connection.
4657 * We therefore force a certificate verification failure which will be
4658 * visible via SSL_get_verify_result() and cached as part of any resumed
4661 * Note: the permissive callback is for information gathering only, always
4662 * returns success, and does not affect verification status. Only the
4663 * strict callback or a custom application-specified callback can trigger
4664 * connection failure or record a verification error.
4667 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4671 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4673 switch (validation_mode
) {
4675 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4677 case SSL_CT_VALIDATION_PERMISSIVE
:
4678 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4679 case SSL_CT_VALIDATION_STRICT
:
4680 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4684 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4686 switch (validation_mode
) {
4688 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4690 case SSL_CT_VALIDATION_PERMISSIVE
:
4691 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4692 case SSL_CT_VALIDATION_STRICT
:
4693 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4697 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4699 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4702 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4704 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4707 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4709 CTLOG_STORE_free(ctx
->ctlog_store
);
4710 ctx
->ctlog_store
= logs
;
4713 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4715 return ctx
->ctlog_store
;
4718 #endif /* OPENSSL_NO_CT */
4720 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4723 c
->client_hello_cb
= cb
;
4724 c
->client_hello_cb_arg
= arg
;
4727 int SSL_client_hello_isv2(SSL
*s
)
4729 if (s
->clienthello
== NULL
)
4731 return s
->clienthello
->isv2
;
4734 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4736 if (s
->clienthello
== NULL
)
4738 return s
->clienthello
->legacy_version
;
4741 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
4743 if (s
->clienthello
== NULL
)
4746 *out
= s
->clienthello
->random
;
4747 return SSL3_RANDOM_SIZE
;
4750 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
4752 if (s
->clienthello
== NULL
)
4755 *out
= s
->clienthello
->session_id
;
4756 return s
->clienthello
->session_id_len
;
4759 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
4761 if (s
->clienthello
== NULL
)
4764 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4765 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4768 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4770 if (s
->clienthello
== NULL
)
4773 *out
= s
->clienthello
->compressions
;
4774 return s
->clienthello
->compressions_len
;
4777 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4783 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4785 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4786 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4790 present
= OPENSSL_malloc(sizeof(*present
) * num
);
4791 if (present
== NULL
)
4793 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4794 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4796 if (ext
->received_order
>= num
)
4798 present
[ext
->received_order
] = ext
->type
;
4805 OPENSSL_free(present
);
4809 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4815 if (s
->clienthello
== NULL
)
4817 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4818 r
= s
->clienthello
->pre_proc_exts
+ i
;
4819 if (r
->present
&& r
->type
== type
) {
4821 *out
= PACKET_data(&r
->data
);
4823 *outlen
= PACKET_remaining(&r
->data
);
4830 int SSL_free_buffers(SSL
*ssl
)
4832 RECORD_LAYER
*rl
= &ssl
->rlayer
;
4834 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
4837 RECORD_LAYER_release(rl
);
4841 int SSL_alloc_buffers(SSL
*ssl
)
4843 return ssl3_setup_buffers(ssl
);
4846 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4848 ctx
->keylog_callback
= cb
;
4851 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4853 return ctx
->keylog_callback
;
4856 static int nss_keylog_int(const char *prefix
,
4858 const uint8_t *parameter_1
,
4859 size_t parameter_1_len
,
4860 const uint8_t *parameter_2
,
4861 size_t parameter_2_len
)
4864 char *cursor
= NULL
;
4869 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
4872 * Our output buffer will contain the following strings, rendered with
4873 * space characters in between, terminated by a NULL character: first the
4874 * prefix, then the first parameter, then the second parameter. The
4875 * meaning of each parameter depends on the specific key material being
4876 * logged. Note that the first and second parameters are encoded in
4877 * hexadecimal, so we need a buffer that is twice their lengths.
4879 prefix_len
= strlen(prefix
);
4880 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
4881 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
4882 SSLerr(SSL_F_NSS_KEYLOG_INT
, ERR_R_MALLOC_FAILURE
);
4886 strcpy(cursor
, prefix
);
4887 cursor
+= prefix_len
;
4890 for (i
= 0; i
< parameter_1_len
; i
++) {
4891 sprintf(cursor
, "%02x", parameter_1
[i
]);
4896 for (i
= 0; i
< parameter_2_len
; i
++) {
4897 sprintf(cursor
, "%02x", parameter_2
[i
]);
4902 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
4908 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
4909 const uint8_t *encrypted_premaster
,
4910 size_t encrypted_premaster_len
,
4911 const uint8_t *premaster
,
4912 size_t premaster_len
)
4914 if (encrypted_premaster_len
< 8) {
4915 SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
4919 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
4920 return nss_keylog_int("RSA",
4922 encrypted_premaster
,
4928 int ssl_log_secret(SSL
*ssl
,
4930 const uint8_t *secret
,
4933 return nss_keylog_int(label
,
4935 ssl
->s3
->client_random
,
4941 #define SSLV2_CIPHER_LEN 3
4943 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
,
4948 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4950 if (PACKET_remaining(cipher_suites
) == 0) {
4951 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4952 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4956 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4957 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
,
4958 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4959 *al
= SSL_AD_DECODE_ERROR
;
4963 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4964 s
->s3
->tmp
.ciphers_raw
= NULL
;
4965 s
->s3
->tmp
.ciphers_rawlen
= 0;
4968 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
4969 PACKET sslv2ciphers
= *cipher_suites
;
4970 unsigned int leadbyte
;
4974 * We store the raw ciphers list in SSLv3+ format so we need to do some
4975 * preprocessing to convert the list first. If there are any SSLv2 only
4976 * ciphersuites with a non-zero leading byte then we are going to
4977 * slightly over allocate because we won't store those. But that isn't a
4980 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
4981 s
->s3
->tmp
.ciphers_raw
= raw
;
4983 *al
= SSL_AD_INTERNAL_ERROR
;
4986 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
4987 PACKET_remaining(&sslv2ciphers
) > 0;
4988 raw
+= TLS_CIPHER_LEN
) {
4989 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
4991 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
4994 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
4995 *al
= SSL_AD_DECODE_ERROR
;
4996 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4997 s
->s3
->tmp
.ciphers_raw
= NULL
;
4998 s
->s3
->tmp
.ciphers_rawlen
= 0;
5002 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5004 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5005 &s
->s3
->tmp
.ciphers_rawlen
)) {
5006 *al
= SSL_AD_INTERNAL_ERROR
;
5014 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5015 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5016 STACK_OF(SSL_CIPHER
) **scsvs
)
5021 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5023 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, &alert
);
5026 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5027 STACK_OF(SSL_CIPHER
) **skp
,
5028 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5029 int sslv2format
, int *al
)
5031 const SSL_CIPHER
*c
;
5032 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5033 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5035 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5036 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5038 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5040 if (PACKET_remaining(cipher_suites
) == 0) {
5041 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5042 *al
= SSL_AD_ILLEGAL_PARAMETER
;
5046 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5047 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5048 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5049 *al
= SSL_AD_DECODE_ERROR
;
5053 sk
= sk_SSL_CIPHER_new_null();
5054 scsvs
= sk_SSL_CIPHER_new_null();
5055 if (sk
== NULL
|| scsvs
== NULL
) {
5056 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5057 *al
= SSL_AD_INTERNAL_ERROR
;
5061 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5063 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5064 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5065 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5067 if (sslv2format
&& cipher
[0] != '\0')
5070 /* For SSLv2-compat, ignore leading 0-byte. */
5071 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5073 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5074 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5075 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5076 *al
= SSL_AD_INTERNAL_ERROR
;
5081 if (PACKET_remaining(cipher_suites
) > 0) {
5082 *al
= SSL_AD_DECODE_ERROR
;
5083 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5090 sk_SSL_CIPHER_free(sk
);
5091 if (scsvs_out
!= NULL
)
5094 sk_SSL_CIPHER_free(scsvs
);
5097 sk_SSL_CIPHER_free(sk
);
5098 sk_SSL_CIPHER_free(scsvs
);
5102 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5104 ctx
->max_early_data
= max_early_data
;
5109 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5111 return ctx
->max_early_data
;
5114 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5116 s
->max_early_data
= max_early_data
;
5121 uint32_t SSL_get_max_early_data(const SSL
*s
)
5123 return s
->max_early_data
;
5126 int ssl_randbytes(SSL
*s
, unsigned char *rnd
, size_t size
)
5128 if (s
->drbg
!= NULL
)
5129 return RAND_DRBG_generate(s
->drbg
, rnd
, size
, 0, NULL
, 0);
5130 return RAND_bytes(rnd
, (int)size
);