2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the OpenSSL license (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
14 #include <openssl/objects.h>
15 #include <openssl/lhash.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
24 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
26 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
28 * evil casts, but these functions are only called if there's a library
31 (int (*)(SSL
*, SSL3_RECORD
*, size_t, int))ssl_undefined_function
,
32 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
33 ssl_undefined_function
,
34 (int (*)(SSL
*, unsigned char *, unsigned char *, size_t, size_t *))
35 ssl_undefined_function
,
36 (int (*)(SSL
*, int))ssl_undefined_function
,
37 (size_t (*)(SSL
*, const char *, size_t, unsigned char *))
38 ssl_undefined_function
,
39 NULL
, /* client_finished_label */
40 0, /* client_finished_label_len */
41 NULL
, /* server_finished_label */
42 0, /* server_finished_label_len */
43 (int (*)(int))ssl_undefined_function
,
44 (int (*)(SSL
*, unsigned char *, size_t, const char *,
45 size_t, const unsigned char *, size_t,
46 int use_context
))ssl_undefined_function
,
49 struct ssl_async_args
{
53 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
55 int (*func_read
) (SSL
*, void *, size_t, size_t *);
56 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
57 int (*func_other
) (SSL
*);
67 DANETLS_MATCHING_FULL
, 0, NID_undef
70 DANETLS_MATCHING_2256
, 1, NID_sha256
73 DANETLS_MATCHING_2512
, 2, NID_sha512
77 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
81 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
82 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
85 if (dctx
->mdevp
!= NULL
)
88 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
89 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
91 if (mdord
== NULL
|| mdevp
== NULL
) {
94 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
98 /* Install default entries */
99 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
102 if (dane_mds
[i
].nid
== NID_undef
||
103 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
105 mdevp
[dane_mds
[i
].mtype
] = md
;
106 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
116 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
118 OPENSSL_free(dctx
->mdevp
);
121 OPENSSL_free(dctx
->mdord
);
126 static void tlsa_free(danetls_record
*t
)
130 OPENSSL_free(t
->data
);
131 EVP_PKEY_free(t
->spki
);
135 static void dane_final(SSL_DANE
*dane
)
137 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
140 sk_X509_pop_free(dane
->certs
, X509_free
);
143 X509_free(dane
->mcert
);
151 * dane_copy - Copy dane configuration, sans verification state.
153 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
158 if (!DANETLS_ENABLED(&from
->dane
))
161 dane_final(&to
->dane
);
162 to
->dane
.flags
= from
->dane
.flags
;
163 to
->dane
.dctx
= &to
->ctx
->dane
;
164 to
->dane
.trecs
= sk_danetls_record_new_null();
166 if (to
->dane
.trecs
== NULL
) {
167 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
171 num
= sk_danetls_record_num(from
->dane
.trecs
);
172 for (i
= 0; i
< num
; ++i
) {
173 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
175 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
176 t
->data
, t
->dlen
) <= 0)
182 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
183 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
187 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
188 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
192 if (mtype
> dctx
->mdmax
) {
193 const EVP_MD
**mdevp
;
195 int n
= ((int)mtype
) + 1;
197 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
199 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
204 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
206 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
211 /* Zero-fill any gaps */
212 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
220 dctx
->mdevp
[mtype
] = md
;
221 /* Coerce ordinal of disabled matching types to 0 */
222 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
227 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
229 if (mtype
> dane
->dctx
->mdmax
)
231 return dane
->dctx
->mdevp
[mtype
];
234 static int dane_tlsa_add(SSL_DANE
*dane
,
237 uint8_t mtype
, unsigned char *data
, size_t dlen
)
240 const EVP_MD
*md
= NULL
;
241 int ilen
= (int)dlen
;
245 if (dane
->trecs
== NULL
) {
246 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
250 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
251 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
255 if (usage
> DANETLS_USAGE_LAST
) {
256 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
260 if (selector
> DANETLS_SELECTOR_LAST
) {
261 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
265 if (mtype
!= DANETLS_MATCHING_FULL
) {
266 md
= tlsa_md_get(dane
, mtype
);
268 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
273 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
274 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
278 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
282 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
283 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
288 t
->selector
= selector
;
290 t
->data
= OPENSSL_malloc(dlen
);
291 if (t
->data
== NULL
) {
293 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
296 memcpy(t
->data
, data
, dlen
);
299 /* Validate and cache full certificate or public key */
300 if (mtype
== DANETLS_MATCHING_FULL
) {
301 const unsigned char *p
= data
;
303 EVP_PKEY
*pkey
= NULL
;
306 case DANETLS_SELECTOR_CERT
:
307 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
308 dlen
!= (size_t)(p
- data
)) {
310 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
313 if (X509_get0_pubkey(cert
) == NULL
) {
315 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
319 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
325 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
326 * records that contain full certificates of trust-anchors that are
327 * not present in the wire chain. For usage PKIX-TA(0), we augment
328 * the chain with untrusted Full(0) certificates from DNS, in case
329 * they are missing from the chain.
331 if ((dane
->certs
== NULL
&&
332 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
333 !sk_X509_push(dane
->certs
, cert
)) {
334 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
341 case DANETLS_SELECTOR_SPKI
:
342 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
343 dlen
!= (size_t)(p
- data
)) {
345 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
350 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
351 * records that contain full bare keys of trust-anchors that are
352 * not present in the wire chain.
354 if (usage
== DANETLS_USAGE_DANE_TA
)
363 * Find the right insertion point for the new record.
365 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
366 * they can be processed first, as they require no chain building, and no
367 * expiration or hostname checks. Because DANE-EE(3) is numerically
368 * largest, this is accomplished via descending sort by "usage".
370 * We also sort in descending order by matching ordinal to simplify
371 * the implementation of digest agility in the verification code.
373 * The choice of order for the selector is not significant, so we
374 * use the same descending order for consistency.
376 num
= sk_danetls_record_num(dane
->trecs
);
377 for (i
= 0; i
< num
; ++i
) {
378 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
380 if (rec
->usage
> usage
)
382 if (rec
->usage
< usage
)
384 if (rec
->selector
> selector
)
386 if (rec
->selector
< selector
)
388 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
393 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
395 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
398 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
403 static void clear_ciphers(SSL
*s
)
405 /* clear the current cipher */
406 ssl_clear_cipher_ctx(s
);
407 ssl_clear_hash_ctx(&s
->read_hash
);
408 ssl_clear_hash_ctx(&s
->write_hash
);
411 int SSL_clear(SSL
*s
)
413 if (s
->method
== NULL
) {
414 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
418 if (ssl_clear_bad_session(s
)) {
419 SSL_SESSION_free(s
->session
);
422 SSL_SESSION_free(s
->psksession
);
423 s
->psksession
= NULL
;
429 if (s
->renegotiate
) {
430 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
434 ossl_statem_clear(s
);
436 s
->version
= s
->method
->version
;
437 s
->client_version
= s
->version
;
438 s
->rwstate
= SSL_NOTHING
;
440 BUF_MEM_free(s
->init_buf
);
445 s
->key_update
= SSL_KEY_UPDATE_NONE
;
447 /* Reset DANE verification result state */
450 X509_free(s
->dane
.mcert
);
451 s
->dane
.mcert
= NULL
;
452 s
->dane
.mtlsa
= NULL
;
454 /* Clear the verification result peername */
455 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
458 * Check to see if we were changed into a different method, if so, revert
459 * back if we are not doing session-id reuse.
461 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
462 && (s
->method
!= s
->ctx
->method
)) {
463 s
->method
->ssl_free(s
);
464 s
->method
= s
->ctx
->method
;
465 if (!s
->method
->ssl_new(s
))
468 if (!s
->method
->ssl_clear(s
))
472 RECORD_LAYER_clear(&s
->rlayer
);
477 /** Used to change an SSL_CTXs default SSL method type */
478 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
480 STACK_OF(SSL_CIPHER
) *sk
;
484 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
485 &(ctx
->cipher_list_by_id
),
486 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
487 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
488 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
494 SSL
*SSL_new(SSL_CTX
*ctx
)
499 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
502 if (ctx
->method
== NULL
) {
503 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
507 s
= OPENSSL_zalloc(sizeof(*s
));
511 s
->lock
= CRYPTO_THREAD_lock_new();
512 if (s
->lock
== NULL
) {
513 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
518 RECORD_LAYER_init(&s
->rlayer
, s
);
520 s
->options
= ctx
->options
;
521 s
->dane
.flags
= ctx
->dane
.flags
;
522 s
->min_proto_version
= ctx
->min_proto_version
;
523 s
->max_proto_version
= ctx
->max_proto_version
;
525 s
->max_cert_list
= ctx
->max_cert_list
;
527 s
->max_early_data
= ctx
->max_early_data
;
530 * Earlier library versions used to copy the pointer to the CERT, not
531 * its contents; only when setting new parameters for the per-SSL
532 * copy, ssl_cert_new would be called (and the direct reference to
533 * the per-SSL_CTX settings would be lost, but those still were
534 * indirectly accessed for various purposes, and for that reason they
535 * used to be known as s->ctx->default_cert). Now we don't look at the
536 * SSL_CTX's CERT after having duplicated it once.
538 s
->cert
= ssl_cert_dup(ctx
->cert
);
542 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
543 s
->msg_callback
= ctx
->msg_callback
;
544 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
545 s
->verify_mode
= ctx
->verify_mode
;
546 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
547 s
->record_padding_cb
= ctx
->record_padding_cb
;
548 s
->record_padding_arg
= ctx
->record_padding_arg
;
549 s
->block_padding
= ctx
->block_padding
;
550 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
551 if (!ossl_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
))
553 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
554 s
->verify_callback
= ctx
->default_verify_callback
;
555 s
->generate_session_id
= ctx
->generate_session_id
;
557 s
->param
= X509_VERIFY_PARAM_new();
558 if (s
->param
== NULL
)
560 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
561 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
562 s
->max_send_fragment
= ctx
->max_send_fragment
;
563 s
->split_send_fragment
= ctx
->split_send_fragment
;
564 s
->max_pipelines
= ctx
->max_pipelines
;
565 if (s
->max_pipelines
> 1)
566 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
567 if (ctx
->default_read_buf_len
> 0)
568 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
573 s
->ext
.debug_arg
= NULL
;
574 s
->ext
.ticket_expected
= 0;
575 s
->ext
.status_type
= ctx
->ext
.status_type
;
576 s
->ext
.status_expected
= 0;
577 s
->ext
.ocsp
.ids
= NULL
;
578 s
->ext
.ocsp
.exts
= NULL
;
579 s
->ext
.ocsp
.resp
= NULL
;
580 s
->ext
.ocsp
.resp_len
= 0;
582 s
->session_ctx
= ctx
;
583 #ifndef OPENSSL_NO_EC
584 if (ctx
->ext
.ecpointformats
) {
585 s
->ext
.ecpointformats
=
586 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
587 ctx
->ext
.ecpointformats_len
);
588 if (!s
->ext
.ecpointformats
)
590 s
->ext
.ecpointformats_len
=
591 ctx
->ext
.ecpointformats_len
;
593 if (ctx
->ext
.supportedgroups
) {
594 s
->ext
.supportedgroups
=
595 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
596 ctx
->ext
.supportedgroups_len
);
597 if (!s
->ext
.supportedgroups
)
599 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
602 #ifndef OPENSSL_NO_NEXTPROTONEG
606 if (s
->ctx
->ext
.alpn
) {
607 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
608 if (s
->ext
.alpn
== NULL
)
610 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
611 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
614 s
->verified_chain
= NULL
;
615 s
->verify_result
= X509_V_OK
;
617 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
618 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
620 s
->method
= ctx
->method
;
622 s
->key_update
= SSL_KEY_UPDATE_NONE
;
624 if (!s
->method
->ssl_new(s
))
627 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
632 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
635 #ifndef OPENSSL_NO_PSK
636 s
->psk_client_callback
= ctx
->psk_client_callback
;
637 s
->psk_server_callback
= ctx
->psk_server_callback
;
639 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
640 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
644 #ifndef OPENSSL_NO_CT
645 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
646 ctx
->ct_validation_callback_arg
))
653 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
657 int SSL_is_dtls(const SSL
*s
)
659 return SSL_IS_DTLS(s
) ? 1 : 0;
662 int SSL_up_ref(SSL
*s
)
666 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
669 REF_PRINT_COUNT("SSL", s
);
670 REF_ASSERT_ISNT(i
< 2);
671 return ((i
> 1) ? 1 : 0);
674 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
675 unsigned int sid_ctx_len
)
677 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
678 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
679 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
682 ctx
->sid_ctx_length
= sid_ctx_len
;
683 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
688 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
689 unsigned int sid_ctx_len
)
691 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
692 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
693 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
696 ssl
->sid_ctx_length
= sid_ctx_len
;
697 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
702 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
704 CRYPTO_THREAD_write_lock(ctx
->lock
);
705 ctx
->generate_session_id
= cb
;
706 CRYPTO_THREAD_unlock(ctx
->lock
);
710 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
712 CRYPTO_THREAD_write_lock(ssl
->lock
);
713 ssl
->generate_session_id
= cb
;
714 CRYPTO_THREAD_unlock(ssl
->lock
);
718 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
722 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
723 * we can "construct" a session to give us the desired check - i.e. to
724 * find if there's a session in the hash table that would conflict with
725 * any new session built out of this id/id_len and the ssl_version in use
730 if (id_len
> sizeof r
.session_id
)
733 r
.ssl_version
= ssl
->version
;
734 r
.session_id_length
= id_len
;
735 memcpy(r
.session_id
, id
, id_len
);
737 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
738 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
739 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
743 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
745 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
748 int SSL_set_purpose(SSL
*s
, int purpose
)
750 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
753 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
755 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
758 int SSL_set_trust(SSL
*s
, int trust
)
760 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
763 int SSL_set1_host(SSL
*s
, const char *hostname
)
765 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
768 int SSL_add1_host(SSL
*s
, const char *hostname
)
770 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
773 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
775 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
778 const char *SSL_get0_peername(SSL
*s
)
780 return X509_VERIFY_PARAM_get0_peername(s
->param
);
783 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
785 return dane_ctx_enable(&ctx
->dane
);
788 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
790 unsigned long orig
= ctx
->dane
.flags
;
792 ctx
->dane
.flags
|= flags
;
796 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
798 unsigned long orig
= ctx
->dane
.flags
;
800 ctx
->dane
.flags
&= ~flags
;
804 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
806 SSL_DANE
*dane
= &s
->dane
;
808 if (s
->ctx
->dane
.mdmax
== 0) {
809 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
812 if (dane
->trecs
!= NULL
) {
813 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
818 * Default SNI name. This rejects empty names, while set1_host below
819 * accepts them and disables host name checks. To avoid side-effects with
820 * invalid input, set the SNI name first.
822 if (s
->ext
.hostname
== NULL
) {
823 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
824 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
829 /* Primary RFC6125 reference identifier */
830 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
831 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
837 dane
->dctx
= &s
->ctx
->dane
;
838 dane
->trecs
= sk_danetls_record_new_null();
840 if (dane
->trecs
== NULL
) {
841 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
847 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
849 unsigned long orig
= ssl
->dane
.flags
;
851 ssl
->dane
.flags
|= flags
;
855 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
857 unsigned long orig
= ssl
->dane
.flags
;
859 ssl
->dane
.flags
&= ~flags
;
863 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
865 SSL_DANE
*dane
= &s
->dane
;
867 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
871 *mcert
= dane
->mcert
;
873 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
878 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
879 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
881 SSL_DANE
*dane
= &s
->dane
;
883 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
887 *usage
= dane
->mtlsa
->usage
;
889 *selector
= dane
->mtlsa
->selector
;
891 *mtype
= dane
->mtlsa
->mtype
;
893 *data
= dane
->mtlsa
->data
;
895 *dlen
= dane
->mtlsa
->dlen
;
900 SSL_DANE
*SSL_get0_dane(SSL
*s
)
905 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
906 uint8_t mtype
, unsigned char *data
, size_t dlen
)
908 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
911 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
914 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
917 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
919 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
922 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
924 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
927 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
932 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
937 void SSL_certs_clear(SSL
*s
)
939 ssl_cert_clear_certs(s
->cert
);
942 void SSL_free(SSL
*s
)
949 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
950 REF_PRINT_COUNT("SSL", s
);
953 REF_ASSERT_ISNT(i
< 0);
955 X509_VERIFY_PARAM_free(s
->param
);
956 dane_final(&s
->dane
);
957 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
959 /* Ignore return value */
960 ssl_free_wbio_buffer(s
);
962 BIO_free_all(s
->wbio
);
963 BIO_free_all(s
->rbio
);
965 BUF_MEM_free(s
->init_buf
);
967 /* add extra stuff */
968 sk_SSL_CIPHER_free(s
->cipher_list
);
969 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
971 /* Make the next call work :-) */
972 if (s
->session
!= NULL
) {
973 ssl_clear_bad_session(s
);
974 SSL_SESSION_free(s
->session
);
976 SSL_SESSION_free(s
->psksession
);
980 ssl_cert_free(s
->cert
);
981 /* Free up if allocated */
983 OPENSSL_free(s
->ext
.hostname
);
984 SSL_CTX_free(s
->session_ctx
);
985 #ifndef OPENSSL_NO_EC
986 OPENSSL_free(s
->ext
.ecpointformats
);
987 OPENSSL_free(s
->ext
.supportedgroups
);
988 #endif /* OPENSSL_NO_EC */
989 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
990 #ifndef OPENSSL_NO_OCSP
991 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
993 #ifndef OPENSSL_NO_CT
994 SCT_LIST_free(s
->scts
);
995 OPENSSL_free(s
->ext
.scts
);
997 OPENSSL_free(s
->ext
.ocsp
.resp
);
998 OPENSSL_free(s
->ext
.alpn
);
999 OPENSSL_free(s
->ext
.tls13_cookie
);
1000 OPENSSL_free(s
->clienthello
);
1002 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1004 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1006 if (s
->method
!= NULL
)
1007 s
->method
->ssl_free(s
);
1009 RECORD_LAYER_release(&s
->rlayer
);
1011 SSL_CTX_free(s
->ctx
);
1013 ASYNC_WAIT_CTX_free(s
->waitctx
);
1015 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1016 OPENSSL_free(s
->ext
.npn
);
1019 #ifndef OPENSSL_NO_SRTP
1020 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1023 CRYPTO_THREAD_lock_free(s
->lock
);
1028 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1030 BIO_free_all(s
->rbio
);
1034 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1037 * If the output buffering BIO is still in place, remove it
1039 if (s
->bbio
!= NULL
)
1040 s
->wbio
= BIO_pop(s
->wbio
);
1042 BIO_free_all(s
->wbio
);
1045 /* Re-attach |bbio| to the new |wbio|. */
1046 if (s
->bbio
!= NULL
)
1047 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1050 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1053 * For historical reasons, this function has many different cases in
1054 * ownership handling.
1057 /* If nothing has changed, do nothing */
1058 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1062 * If the two arguments are equal then one fewer reference is granted by the
1063 * caller than we want to take
1065 if (rbio
!= NULL
&& rbio
== wbio
)
1069 * If only the wbio is changed only adopt one reference.
1071 if (rbio
== SSL_get_rbio(s
)) {
1072 SSL_set0_wbio(s
, wbio
);
1076 * There is an asymmetry here for historical reasons. If only the rbio is
1077 * changed AND the rbio and wbio were originally different, then we only
1078 * adopt one reference.
1080 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1081 SSL_set0_rbio(s
, rbio
);
1085 /* Otherwise, adopt both references. */
1086 SSL_set0_rbio(s
, rbio
);
1087 SSL_set0_wbio(s
, wbio
);
1090 BIO
*SSL_get_rbio(const SSL
*s
)
1095 BIO
*SSL_get_wbio(const SSL
*s
)
1097 if (s
->bbio
!= NULL
) {
1099 * If |bbio| is active, the true caller-configured BIO is its
1102 return BIO_next(s
->bbio
);
1107 int SSL_get_fd(const SSL
*s
)
1109 return SSL_get_rfd(s
);
1112 int SSL_get_rfd(const SSL
*s
)
1117 b
= SSL_get_rbio(s
);
1118 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1120 BIO_get_fd(r
, &ret
);
1124 int SSL_get_wfd(const SSL
*s
)
1129 b
= SSL_get_wbio(s
);
1130 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1132 BIO_get_fd(r
, &ret
);
1136 #ifndef OPENSSL_NO_SOCK
1137 int SSL_set_fd(SSL
*s
, int fd
)
1142 bio
= BIO_new(BIO_s_socket());
1145 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1148 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1149 SSL_set_bio(s
, bio
, bio
);
1155 int SSL_set_wfd(SSL
*s
, int fd
)
1157 BIO
*rbio
= SSL_get_rbio(s
);
1159 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1160 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1161 BIO
*bio
= BIO_new(BIO_s_socket());
1164 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1167 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1168 SSL_set0_wbio(s
, bio
);
1171 SSL_set0_wbio(s
, rbio
);
1176 int SSL_set_rfd(SSL
*s
, int fd
)
1178 BIO
*wbio
= SSL_get_wbio(s
);
1180 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1181 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1182 BIO
*bio
= BIO_new(BIO_s_socket());
1185 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1188 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1189 SSL_set0_rbio(s
, bio
);
1192 SSL_set0_rbio(s
, wbio
);
1199 /* return length of latest Finished message we sent, copy to 'buf' */
1200 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1204 if (s
->s3
!= NULL
) {
1205 ret
= s
->s3
->tmp
.finish_md_len
;
1208 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1213 /* return length of latest Finished message we expected, copy to 'buf' */
1214 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1218 if (s
->s3
!= NULL
) {
1219 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1222 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1227 int SSL_get_verify_mode(const SSL
*s
)
1229 return (s
->verify_mode
);
1232 int SSL_get_verify_depth(const SSL
*s
)
1234 return X509_VERIFY_PARAM_get_depth(s
->param
);
1237 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1238 return (s
->verify_callback
);
1241 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1243 return (ctx
->verify_mode
);
1246 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1248 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1251 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1252 return (ctx
->default_verify_callback
);
1255 void SSL_set_verify(SSL
*s
, int mode
,
1256 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1258 s
->verify_mode
= mode
;
1259 if (callback
!= NULL
)
1260 s
->verify_callback
= callback
;
1263 void SSL_set_verify_depth(SSL
*s
, int depth
)
1265 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1268 void SSL_set_read_ahead(SSL
*s
, int yes
)
1270 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1273 int SSL_get_read_ahead(const SSL
*s
)
1275 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1278 int SSL_pending(const SSL
*s
)
1280 size_t pending
= s
->method
->ssl_pending(s
);
1283 * SSL_pending cannot work properly if read-ahead is enabled
1284 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1285 * impossible to fix since SSL_pending cannot report errors that may be
1286 * observed while scanning the new data. (Note that SSL_pending() is
1287 * often used as a boolean value, so we'd better not return -1.)
1289 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1290 * we just return INT_MAX.
1292 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1295 int SSL_has_pending(const SSL
*s
)
1298 * Similar to SSL_pending() but returns a 1 to indicate that we have
1299 * unprocessed data available or 0 otherwise (as opposed to the number of
1300 * bytes available). Unlike SSL_pending() this will take into account
1301 * read_ahead data. A 1 return simply indicates that we have unprocessed
1302 * data. That data may not result in any application data, or we may fail
1303 * to parse the records for some reason.
1305 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1308 return RECORD_LAYER_read_pending(&s
->rlayer
);
1311 X509
*SSL_get_peer_certificate(const SSL
*s
)
1315 if ((s
== NULL
) || (s
->session
== NULL
))
1318 r
= s
->session
->peer
;
1328 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1332 if ((s
== NULL
) || (s
->session
== NULL
))
1335 r
= s
->session
->peer_chain
;
1338 * If we are a client, cert_chain includes the peer's own certificate; if
1339 * we are a server, it does not.
1346 * Now in theory, since the calling process own 't' it should be safe to
1347 * modify. We need to be able to read f without being hassled
1349 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1352 /* Do we need to to SSL locking? */
1353 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1358 * what if we are setup for one protocol version but want to talk another
1360 if (t
->method
!= f
->method
) {
1361 t
->method
->ssl_free(t
);
1362 t
->method
= f
->method
;
1363 if (t
->method
->ssl_new(t
) == 0)
1367 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1368 ssl_cert_free(t
->cert
);
1370 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1377 /* Fix this so it checks all the valid key/cert options */
1378 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1380 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1381 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1384 if (ctx
->cert
->key
->privatekey
== NULL
) {
1385 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1388 return (X509_check_private_key
1389 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1392 /* Fix this function so that it takes an optional type parameter */
1393 int SSL_check_private_key(const SSL
*ssl
)
1396 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1399 if (ssl
->cert
->key
->x509
== NULL
) {
1400 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1403 if (ssl
->cert
->key
->privatekey
== NULL
) {
1404 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1407 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1408 ssl
->cert
->key
->privatekey
));
1411 int SSL_waiting_for_async(SSL
*s
)
1419 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1421 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1425 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1428 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1429 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1431 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1435 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1439 int SSL_accept(SSL
*s
)
1441 if (s
->handshake_func
== NULL
) {
1442 /* Not properly initialized yet */
1443 SSL_set_accept_state(s
);
1446 return SSL_do_handshake(s
);
1449 int SSL_connect(SSL
*s
)
1451 if (s
->handshake_func
== NULL
) {
1452 /* Not properly initialized yet */
1453 SSL_set_connect_state(s
);
1456 return SSL_do_handshake(s
);
1459 long SSL_get_default_timeout(const SSL
*s
)
1461 return (s
->method
->get_timeout());
1464 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1465 int (*func
) (void *))
1468 if (s
->waitctx
== NULL
) {
1469 s
->waitctx
= ASYNC_WAIT_CTX_new();
1470 if (s
->waitctx
== NULL
)
1473 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1474 sizeof(struct ssl_async_args
))) {
1476 s
->rwstate
= SSL_NOTHING
;
1477 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1480 s
->rwstate
= SSL_ASYNC_PAUSED
;
1483 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1489 s
->rwstate
= SSL_NOTHING
;
1490 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1491 /* Shouldn't happen */
1496 static int ssl_io_intern(void *vargs
)
1498 struct ssl_async_args
*args
;
1503 args
= (struct ssl_async_args
*)vargs
;
1507 switch (args
->type
) {
1509 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1511 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1513 return args
->f
.func_other(s
);
1518 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1520 if (s
->handshake_func
== NULL
) {
1521 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1525 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1526 s
->rwstate
= SSL_NOTHING
;
1530 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1531 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1532 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1536 * If we are a client and haven't received the ServerHello etc then we
1539 ossl_statem_check_finish_init(s
, 0);
1541 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1542 struct ssl_async_args args
;
1548 args
.type
= READFUNC
;
1549 args
.f
.func_read
= s
->method
->ssl_read
;
1551 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1552 *readbytes
= s
->asyncrw
;
1555 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1559 int SSL_read(SSL
*s
, void *buf
, int num
)
1565 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1569 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1572 * The cast is safe here because ret should be <= INT_MAX because num is
1576 ret
= (int)readbytes
;
1581 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1583 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1590 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1595 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1596 return SSL_READ_EARLY_DATA_ERROR
;
1599 switch (s
->early_data_state
) {
1600 case SSL_EARLY_DATA_NONE
:
1601 if (!SSL_in_before(s
)) {
1602 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1603 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1604 return SSL_READ_EARLY_DATA_ERROR
;
1608 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1609 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1610 ret
= SSL_accept(s
);
1613 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1614 return SSL_READ_EARLY_DATA_ERROR
;
1618 case SSL_EARLY_DATA_READ_RETRY
:
1619 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1620 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1621 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1623 * State machine will update early_data_state to
1624 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1627 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1628 != SSL_EARLY_DATA_FINISHED_READING
)) {
1629 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1630 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1631 : SSL_READ_EARLY_DATA_ERROR
;
1634 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1637 return SSL_READ_EARLY_DATA_FINISH
;
1640 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1641 return SSL_READ_EARLY_DATA_ERROR
;
1645 int SSL_get_early_data_status(const SSL
*s
)
1647 return s
->ext
.early_data
;
1650 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1652 if (s
->handshake_func
== NULL
) {
1653 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1657 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1660 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1661 struct ssl_async_args args
;
1667 args
.type
= READFUNC
;
1668 args
.f
.func_read
= s
->method
->ssl_peek
;
1670 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1671 *readbytes
= s
->asyncrw
;
1674 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1678 int SSL_peek(SSL
*s
, void *buf
, int num
)
1684 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1688 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1691 * The cast is safe here because ret should be <= INT_MAX because num is
1695 ret
= (int)readbytes
;
1701 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1703 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1710 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1712 if (s
->handshake_func
== NULL
) {
1713 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1717 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1718 s
->rwstate
= SSL_NOTHING
;
1719 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1723 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1724 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1725 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1726 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1729 /* If we are a client and haven't sent the Finished we better do that */
1730 ossl_statem_check_finish_init(s
, 1);
1732 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1734 struct ssl_async_args args
;
1737 args
.buf
= (void *)buf
;
1739 args
.type
= WRITEFUNC
;
1740 args
.f
.func_write
= s
->method
->ssl_write
;
1742 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1743 *written
= s
->asyncrw
;
1746 return s
->method
->ssl_write(s
, buf
, num
, written
);
1750 int SSL_write(SSL
*s
, const void *buf
, int num
)
1756 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1760 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1763 * The cast is safe here because ret should be <= INT_MAX because num is
1772 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1774 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1781 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1783 int ret
, early_data_state
;
1785 switch (s
->early_data_state
) {
1786 case SSL_EARLY_DATA_NONE
:
1788 || !SSL_in_before(s
)
1789 || s
->session
== NULL
1790 || s
->session
->ext
.max_early_data
== 0) {
1791 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1792 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1797 case SSL_EARLY_DATA_CONNECT_RETRY
:
1798 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1799 ret
= SSL_connect(s
);
1802 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1807 case SSL_EARLY_DATA_WRITE_RETRY
:
1808 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1809 ret
= SSL_write_ex(s
, buf
, num
, written
);
1810 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
1813 case SSL_EARLY_DATA_FINISHED_READING
:
1814 case SSL_EARLY_DATA_READ_RETRY
:
1815 early_data_state
= s
->early_data_state
;
1816 /* We are a server writing to an unauthenticated client */
1817 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
1818 ret
= SSL_write_ex(s
, buf
, num
, written
);
1819 s
->early_data_state
= early_data_state
;
1823 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1828 int SSL_shutdown(SSL
*s
)
1831 * Note that this function behaves differently from what one might
1832 * expect. Return values are 0 for no success (yet), 1 for success; but
1833 * calling it once is usually not enough, even if blocking I/O is used
1834 * (see ssl3_shutdown).
1837 if (s
->handshake_func
== NULL
) {
1838 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1842 if (!SSL_in_init(s
)) {
1843 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1844 struct ssl_async_args args
;
1847 args
.type
= OTHERFUNC
;
1848 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1850 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1852 return s
->method
->ssl_shutdown(s
);
1855 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1860 int SSL_key_update(SSL
*s
, int updatetype
)
1863 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
1864 * negotiated, and that it is appropriate to call SSL_key_update() instead
1865 * of SSL_renegotiate().
1867 if (!SSL_IS_TLS13(s
)) {
1868 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
1872 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
1873 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
1874 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
1878 if (!SSL_is_init_finished(s
)) {
1879 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
1883 ossl_statem_set_in_init(s
, 1);
1884 s
->key_update
= updatetype
;
1888 int SSL_get_key_update_type(SSL
*s
)
1890 return s
->key_update
;
1893 int SSL_renegotiate(SSL
*s
)
1895 if (SSL_IS_TLS13(s
)) {
1896 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
1900 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
1901 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
1908 return (s
->method
->ssl_renegotiate(s
));
1911 int SSL_renegotiate_abbreviated(SSL
*s
)
1913 if (SSL_IS_TLS13(s
)) {
1914 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
1918 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
1919 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
1926 return (s
->method
->ssl_renegotiate(s
));
1929 int SSL_renegotiate_pending(SSL
*s
)
1932 * becomes true when negotiation is requested; false again once a
1933 * handshake has finished
1935 return (s
->renegotiate
!= 0);
1938 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1943 case SSL_CTRL_GET_READ_AHEAD
:
1944 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1945 case SSL_CTRL_SET_READ_AHEAD
:
1946 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1947 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1950 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1951 s
->msg_callback_arg
= parg
;
1955 return (s
->mode
|= larg
);
1956 case SSL_CTRL_CLEAR_MODE
:
1957 return (s
->mode
&= ~larg
);
1958 case SSL_CTRL_GET_MAX_CERT_LIST
:
1959 return (long)(s
->max_cert_list
);
1960 case SSL_CTRL_SET_MAX_CERT_LIST
:
1963 l
= (long)s
->max_cert_list
;
1964 s
->max_cert_list
= (size_t)larg
;
1966 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1967 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1969 s
->max_send_fragment
= larg
;
1970 if (s
->max_send_fragment
< s
->split_send_fragment
)
1971 s
->split_send_fragment
= s
->max_send_fragment
;
1973 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1974 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
1976 s
->split_send_fragment
= larg
;
1978 case SSL_CTRL_SET_MAX_PIPELINES
:
1979 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1981 s
->max_pipelines
= larg
;
1983 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
1985 case SSL_CTRL_GET_RI_SUPPORT
:
1987 return s
->s3
->send_connection_binding
;
1990 case SSL_CTRL_CERT_FLAGS
:
1991 return (s
->cert
->cert_flags
|= larg
);
1992 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1993 return (s
->cert
->cert_flags
&= ~larg
);
1995 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1997 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
1999 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2000 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2002 return TLS_CIPHER_LEN
;
2004 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2005 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2007 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2011 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2012 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2013 &s
->min_proto_version
);
2014 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2015 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2016 &s
->max_proto_version
);
2018 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
2022 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2025 case SSL_CTRL_SET_MSG_CALLBACK
:
2026 s
->msg_callback
= (void (*)
2027 (int write_p
, int version
, int content_type
,
2028 const void *buf
, size_t len
, SSL
*ssl
,
2033 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
2037 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2039 return ctx
->sessions
;
2042 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2045 /* For some cases with ctx == NULL perform syntax checks */
2048 #ifndef OPENSSL_NO_EC
2049 case SSL_CTRL_SET_GROUPS_LIST
:
2050 return tls1_set_groups_list(NULL
, NULL
, parg
);
2052 case SSL_CTRL_SET_SIGALGS_LIST
:
2053 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2054 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2061 case SSL_CTRL_GET_READ_AHEAD
:
2062 return (ctx
->read_ahead
);
2063 case SSL_CTRL_SET_READ_AHEAD
:
2064 l
= ctx
->read_ahead
;
2065 ctx
->read_ahead
= larg
;
2068 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2069 ctx
->msg_callback_arg
= parg
;
2072 case SSL_CTRL_GET_MAX_CERT_LIST
:
2073 return (long)(ctx
->max_cert_list
);
2074 case SSL_CTRL_SET_MAX_CERT_LIST
:
2077 l
= (long)ctx
->max_cert_list
;
2078 ctx
->max_cert_list
= (size_t)larg
;
2081 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2084 l
= (long)ctx
->session_cache_size
;
2085 ctx
->session_cache_size
= (size_t)larg
;
2087 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2088 return (long)(ctx
->session_cache_size
);
2089 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2090 l
= ctx
->session_cache_mode
;
2091 ctx
->session_cache_mode
= larg
;
2093 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2094 return (ctx
->session_cache_mode
);
2096 case SSL_CTRL_SESS_NUMBER
:
2097 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
2098 case SSL_CTRL_SESS_CONNECT
:
2099 return (ctx
->stats
.sess_connect
);
2100 case SSL_CTRL_SESS_CONNECT_GOOD
:
2101 return (ctx
->stats
.sess_connect_good
);
2102 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2103 return (ctx
->stats
.sess_connect_renegotiate
);
2104 case SSL_CTRL_SESS_ACCEPT
:
2105 return (ctx
->stats
.sess_accept
);
2106 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2107 return (ctx
->stats
.sess_accept_good
);
2108 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2109 return (ctx
->stats
.sess_accept_renegotiate
);
2110 case SSL_CTRL_SESS_HIT
:
2111 return (ctx
->stats
.sess_hit
);
2112 case SSL_CTRL_SESS_CB_HIT
:
2113 return (ctx
->stats
.sess_cb_hit
);
2114 case SSL_CTRL_SESS_MISSES
:
2115 return (ctx
->stats
.sess_miss
);
2116 case SSL_CTRL_SESS_TIMEOUTS
:
2117 return (ctx
->stats
.sess_timeout
);
2118 case SSL_CTRL_SESS_CACHE_FULL
:
2119 return (ctx
->stats
.sess_cache_full
);
2121 return (ctx
->mode
|= larg
);
2122 case SSL_CTRL_CLEAR_MODE
:
2123 return (ctx
->mode
&= ~larg
);
2124 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2125 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2127 ctx
->max_send_fragment
= larg
;
2128 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2129 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2131 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2132 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2134 ctx
->split_send_fragment
= larg
;
2136 case SSL_CTRL_SET_MAX_PIPELINES
:
2137 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2139 ctx
->max_pipelines
= larg
;
2141 case SSL_CTRL_CERT_FLAGS
:
2142 return (ctx
->cert
->cert_flags
|= larg
);
2143 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2144 return (ctx
->cert
->cert_flags
&= ~larg
);
2145 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2146 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2147 &ctx
->min_proto_version
);
2148 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2149 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2150 &ctx
->max_proto_version
);
2152 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
2156 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2159 case SSL_CTRL_SET_MSG_CALLBACK
:
2160 ctx
->msg_callback
= (void (*)
2161 (int write_p
, int version
, int content_type
,
2162 const void *buf
, size_t len
, SSL
*ssl
,
2167 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
2171 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2180 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2181 const SSL_CIPHER
*const *bp
)
2183 if ((*ap
)->id
> (*bp
)->id
)
2185 if ((*ap
)->id
< (*bp
)->id
)
2190 /** return a STACK of the ciphers available for the SSL and in order of
2192 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2195 if (s
->cipher_list
!= NULL
) {
2196 return (s
->cipher_list
);
2197 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2198 return (s
->ctx
->cipher_list
);
2204 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2206 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2208 return s
->session
->ciphers
;
2211 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2213 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2215 ciphers
= SSL_get_ciphers(s
);
2218 ssl_set_client_disabled(s
);
2219 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2220 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2221 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2223 sk
= sk_SSL_CIPHER_new_null();
2226 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2227 sk_SSL_CIPHER_free(sk
);
2235 /** return a STACK of the ciphers available for the SSL and in order of
2237 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2240 if (s
->cipher_list_by_id
!= NULL
) {
2241 return (s
->cipher_list_by_id
);
2242 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2243 return (s
->ctx
->cipher_list_by_id
);
2249 /** The old interface to get the same thing as SSL_get_ciphers() */
2250 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2252 const SSL_CIPHER
*c
;
2253 STACK_OF(SSL_CIPHER
) *sk
;
2257 sk
= SSL_get_ciphers(s
);
2258 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2260 c
= sk_SSL_CIPHER_value(sk
, n
);
2266 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2268 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2271 return ctx
->cipher_list
;
2275 /** specify the ciphers to be used by default by the SSL_CTX */
2276 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2278 STACK_OF(SSL_CIPHER
) *sk
;
2280 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2281 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2283 * ssl_create_cipher_list may return an empty stack if it was unable to
2284 * find a cipher matching the given rule string (for example if the rule
2285 * string specifies a cipher which has been disabled). This is not an
2286 * error as far as ssl_create_cipher_list is concerned, and hence
2287 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2291 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2292 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2298 /** specify the ciphers to be used by the SSL */
2299 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2301 STACK_OF(SSL_CIPHER
) *sk
;
2303 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2304 &s
->cipher_list_by_id
, str
, s
->cert
);
2305 /* see comment in SSL_CTX_set_cipher_list */
2308 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2309 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2315 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2318 STACK_OF(SSL_CIPHER
) *sk
;
2319 const SSL_CIPHER
*c
;
2322 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2326 sk
= s
->session
->ciphers
;
2328 if (sk_SSL_CIPHER_num(sk
) == 0)
2331 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2334 c
= sk_SSL_CIPHER_value(sk
, i
);
2335 n
= strlen(c
->name
);
2342 memcpy(p
, c
->name
, n
+ 1);
2351 /** return a servername extension value if provided in Client Hello, or NULL.
2352 * So far, only host_name types are defined (RFC 3546).
2355 const char *SSL_get_servername(const SSL
*s
, const int type
)
2357 if (type
!= TLSEXT_NAMETYPE_host_name
)
2360 return s
->session
&& !s
->ext
.hostname
?
2361 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2364 int SSL_get_servername_type(const SSL
*s
)
2367 && (!s
->ext
.hostname
? s
->session
->
2368 ext
.hostname
: s
->ext
.hostname
))
2369 return TLSEXT_NAMETYPE_host_name
;
2374 * SSL_select_next_proto implements the standard protocol selection. It is
2375 * expected that this function is called from the callback set by
2376 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2377 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2378 * not included in the length. A byte string of length 0 is invalid. No byte
2379 * string may be truncated. The current, but experimental algorithm for
2380 * selecting the protocol is: 1) If the server doesn't support NPN then this
2381 * is indicated to the callback. In this case, the client application has to
2382 * abort the connection or have a default application level protocol. 2) If
2383 * the server supports NPN, but advertises an empty list then the client
2384 * selects the first protocol in its list, but indicates via the API that this
2385 * fallback case was enacted. 3) Otherwise, the client finds the first
2386 * protocol in the server's list that it supports and selects this protocol.
2387 * This is because it's assumed that the server has better information about
2388 * which protocol a client should use. 4) If the client doesn't support any
2389 * of the server's advertised protocols, then this is treated the same as
2390 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2391 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2393 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2394 const unsigned char *server
,
2395 unsigned int server_len
,
2396 const unsigned char *client
, unsigned int client_len
)
2399 const unsigned char *result
;
2400 int status
= OPENSSL_NPN_UNSUPPORTED
;
2403 * For each protocol in server preference order, see if we support it.
2405 for (i
= 0; i
< server_len
;) {
2406 for (j
= 0; j
< client_len
;) {
2407 if (server
[i
] == client
[j
] &&
2408 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2409 /* We found a match */
2410 result
= &server
[i
];
2411 status
= OPENSSL_NPN_NEGOTIATED
;
2421 /* There's no overlap between our protocols and the server's list. */
2423 status
= OPENSSL_NPN_NO_OVERLAP
;
2426 *out
= (unsigned char *)result
+ 1;
2427 *outlen
= result
[0];
2431 #ifndef OPENSSL_NO_NEXTPROTONEG
2433 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2434 * client's requested protocol for this connection and returns 0. If the
2435 * client didn't request any protocol, then *data is set to NULL. Note that
2436 * the client can request any protocol it chooses. The value returned from
2437 * this function need not be a member of the list of supported protocols
2438 * provided by the callback.
2440 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2447 *len
= (unsigned int)s
->ext
.npn_len
;
2452 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2453 * a TLS server needs a list of supported protocols for Next Protocol
2454 * Negotiation. The returned list must be in wire format. The list is
2455 * returned by setting |out| to point to it and |outlen| to its length. This
2456 * memory will not be modified, but one should assume that the SSL* keeps a
2457 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2458 * wishes to advertise. Otherwise, no such extension will be included in the
2461 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2462 SSL_CTX_npn_advertised_cb_func cb
,
2465 ctx
->ext
.npn_advertised_cb
= cb
;
2466 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2470 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2471 * client needs to select a protocol from the server's provided list. |out|
2472 * must be set to point to the selected protocol (which may be within |in|).
2473 * The length of the protocol name must be written into |outlen|. The
2474 * server's advertised protocols are provided in |in| and |inlen|. The
2475 * callback can assume that |in| is syntactically valid. The client must
2476 * select a protocol. It is fatal to the connection if this callback returns
2477 * a value other than SSL_TLSEXT_ERR_OK.
2479 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2480 SSL_CTX_npn_select_cb_func cb
,
2483 ctx
->ext
.npn_select_cb
= cb
;
2484 ctx
->ext
.npn_select_cb_arg
= arg
;
2489 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2490 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2491 * length-prefixed strings). Returns 0 on success.
2493 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2494 unsigned int protos_len
)
2496 OPENSSL_free(ctx
->ext
.alpn
);
2497 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2498 if (ctx
->ext
.alpn
== NULL
) {
2499 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2502 ctx
->ext
.alpn_len
= protos_len
;
2508 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2509 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2510 * length-prefixed strings). Returns 0 on success.
2512 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2513 unsigned int protos_len
)
2515 OPENSSL_free(ssl
->ext
.alpn
);
2516 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2517 if (ssl
->ext
.alpn
== NULL
) {
2518 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2521 ssl
->ext
.alpn_len
= protos_len
;
2527 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2528 * called during ClientHello processing in order to select an ALPN protocol
2529 * from the client's list of offered protocols.
2531 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2532 SSL_CTX_alpn_select_cb_func cb
,
2535 ctx
->ext
.alpn_select_cb
= cb
;
2536 ctx
->ext
.alpn_select_cb_arg
= arg
;
2540 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2541 * On return it sets |*data| to point to |*len| bytes of protocol name
2542 * (not including the leading length-prefix byte). If the server didn't
2543 * respond with a negotiated protocol then |*len| will be zero.
2545 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2550 *data
= ssl
->s3
->alpn_selected
;
2554 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2557 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2558 const char *label
, size_t llen
,
2559 const unsigned char *p
, size_t plen
,
2562 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2565 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2570 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2572 const unsigned char *session_id
= a
->session_id
;
2574 unsigned char tmp_storage
[4];
2576 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2577 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2578 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2579 session_id
= tmp_storage
;
2583 ((unsigned long)session_id
[0]) |
2584 ((unsigned long)session_id
[1] << 8L) |
2585 ((unsigned long)session_id
[2] << 16L) |
2586 ((unsigned long)session_id
[3] << 24L);
2591 * NB: If this function (or indeed the hash function which uses a sort of
2592 * coarser function than this one) is changed, ensure
2593 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2594 * being able to construct an SSL_SESSION that will collide with any existing
2595 * session with a matching session ID.
2597 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2599 if (a
->ssl_version
!= b
->ssl_version
)
2601 if (a
->session_id_length
!= b
->session_id_length
)
2603 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2607 * These wrapper functions should remain rather than redeclaring
2608 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2609 * variable. The reason is that the functions aren't static, they're exposed
2613 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2615 SSL_CTX
*ret
= NULL
;
2618 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2622 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2625 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2626 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2629 ret
= OPENSSL_zalloc(sizeof(*ret
));
2634 ret
->min_proto_version
= 0;
2635 ret
->max_proto_version
= 0;
2636 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2637 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2638 /* We take the system default. */
2639 ret
->session_timeout
= meth
->get_timeout();
2640 ret
->references
= 1;
2641 ret
->lock
= CRYPTO_THREAD_lock_new();
2642 if (ret
->lock
== NULL
) {
2643 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2647 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2648 ret
->verify_mode
= SSL_VERIFY_NONE
;
2649 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2652 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2653 if (ret
->sessions
== NULL
)
2655 ret
->cert_store
= X509_STORE_new();
2656 if (ret
->cert_store
== NULL
)
2658 #ifndef OPENSSL_NO_CT
2659 ret
->ctlog_store
= CTLOG_STORE_new();
2660 if (ret
->ctlog_store
== NULL
)
2663 if (!ssl_create_cipher_list(ret
->method
,
2664 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2665 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2666 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2667 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2671 ret
->param
= X509_VERIFY_PARAM_new();
2672 if (ret
->param
== NULL
)
2675 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2676 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2679 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2680 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2684 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2687 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2690 /* No compression for DTLS */
2691 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2692 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2694 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2695 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2697 /* Setup RFC5077 ticket keys */
2698 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2699 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2700 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2701 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2702 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2703 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2704 ret
->options
|= SSL_OP_NO_TICKET
;
2706 #ifndef OPENSSL_NO_SRP
2707 if (!SSL_CTX_SRP_CTX_init(ret
))
2710 #ifndef OPENSSL_NO_ENGINE
2711 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2712 # define eng_strx(x) #x
2713 # define eng_str(x) eng_strx(x)
2714 /* Use specific client engine automatically... ignore errors */
2717 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2720 ENGINE_load_builtin_engines();
2721 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2723 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2729 * Default is to connect to non-RI servers. When RI is more widely
2730 * deployed might change this.
2732 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2734 * Disable compression by default to prevent CRIME. Applications can
2735 * re-enable compression by configuring
2736 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2737 * or by using the SSL_CONF library.
2739 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2741 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
2744 * Default max early data is a fully loaded single record. Could be split
2745 * across multiple records in practice
2747 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
2751 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2757 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
2761 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
2764 REF_PRINT_COUNT("SSL_CTX", ctx
);
2765 REF_ASSERT_ISNT(i
< 2);
2766 return ((i
> 1) ? 1 : 0);
2769 void SSL_CTX_free(SSL_CTX
*a
)
2776 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
2777 REF_PRINT_COUNT("SSL_CTX", a
);
2780 REF_ASSERT_ISNT(i
< 0);
2782 X509_VERIFY_PARAM_free(a
->param
);
2783 dane_ctx_final(&a
->dane
);
2786 * Free internal session cache. However: the remove_cb() may reference
2787 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2788 * after the sessions were flushed.
2789 * As the ex_data handling routines might also touch the session cache,
2790 * the most secure solution seems to be: empty (flush) the cache, then
2791 * free ex_data, then finally free the cache.
2792 * (See ticket [openssl.org #212].)
2794 if (a
->sessions
!= NULL
)
2795 SSL_CTX_flush_sessions(a
, 0);
2797 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2798 lh_SSL_SESSION_free(a
->sessions
);
2799 X509_STORE_free(a
->cert_store
);
2800 #ifndef OPENSSL_NO_CT
2801 CTLOG_STORE_free(a
->ctlog_store
);
2803 sk_SSL_CIPHER_free(a
->cipher_list
);
2804 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2805 ssl_cert_free(a
->cert
);
2806 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
2807 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2808 a
->comp_methods
= NULL
;
2809 #ifndef OPENSSL_NO_SRTP
2810 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2812 #ifndef OPENSSL_NO_SRP
2813 SSL_CTX_SRP_CTX_free(a
);
2815 #ifndef OPENSSL_NO_ENGINE
2816 ENGINE_finish(a
->client_cert_engine
);
2819 #ifndef OPENSSL_NO_EC
2820 OPENSSL_free(a
->ext
.ecpointformats
);
2821 OPENSSL_free(a
->ext
.supportedgroups
);
2823 OPENSSL_free(a
->ext
.alpn
);
2825 CRYPTO_THREAD_lock_free(a
->lock
);
2830 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2832 ctx
->default_passwd_callback
= cb
;
2835 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2837 ctx
->default_passwd_callback_userdata
= u
;
2840 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2842 return ctx
->default_passwd_callback
;
2845 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2847 return ctx
->default_passwd_callback_userdata
;
2850 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2852 s
->default_passwd_callback
= cb
;
2855 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2857 s
->default_passwd_callback_userdata
= u
;
2860 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2862 return s
->default_passwd_callback
;
2865 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2867 return s
->default_passwd_callback_userdata
;
2870 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2871 int (*cb
) (X509_STORE_CTX
*, void *),
2874 ctx
->app_verify_callback
= cb
;
2875 ctx
->app_verify_arg
= arg
;
2878 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2879 int (*cb
) (int, X509_STORE_CTX
*))
2881 ctx
->verify_mode
= mode
;
2882 ctx
->default_verify_callback
= cb
;
2885 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2887 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2890 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2892 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2895 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2897 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2900 void ssl_set_masks(SSL
*s
)
2903 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
2904 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
2905 unsigned long mask_k
, mask_a
;
2906 #ifndef OPENSSL_NO_EC
2907 int have_ecc_cert
, ecdsa_ok
;
2912 #ifndef OPENSSL_NO_DH
2913 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
2918 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
2919 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
2920 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
2921 #ifndef OPENSSL_NO_EC
2922 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
2928 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
2929 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
2932 #ifndef OPENSSL_NO_GOST
2933 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
2934 mask_k
|= SSL_kGOST
;
2935 mask_a
|= SSL_aGOST12
;
2937 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
2938 mask_k
|= SSL_kGOST
;
2939 mask_a
|= SSL_aGOST12
;
2941 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
2942 mask_k
|= SSL_kGOST
;
2943 mask_a
|= SSL_aGOST01
;
2953 if (rsa_enc
|| rsa_sign
) {
2961 mask_a
|= SSL_aNULL
;
2964 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2965 * depending on the key usage extension.
2967 #ifndef OPENSSL_NO_EC
2968 if (have_ecc_cert
) {
2970 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
2971 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2972 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2975 mask_a
|= SSL_aECDSA
;
2977 /* Allow Ed25519 for TLS 1.2 if peer supports it */
2978 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
2979 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
2980 && TLS1_get_version(s
) == TLS1_2_VERSION
)
2981 mask_a
|= SSL_aECDSA
;
2984 #ifndef OPENSSL_NO_EC
2985 mask_k
|= SSL_kECDHE
;
2988 #ifndef OPENSSL_NO_PSK
2991 if (mask_k
& SSL_kRSA
)
2992 mask_k
|= SSL_kRSAPSK
;
2993 if (mask_k
& SSL_kDHE
)
2994 mask_k
|= SSL_kDHEPSK
;
2995 if (mask_k
& SSL_kECDHE
)
2996 mask_k
|= SSL_kECDHEPSK
;
2999 s
->s3
->tmp
.mask_k
= mask_k
;
3000 s
->s3
->tmp
.mask_a
= mask_a
;
3003 #ifndef OPENSSL_NO_EC
3005 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3007 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3008 /* key usage, if present, must allow signing */
3009 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3010 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3011 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3015 return 1; /* all checks are ok */
3020 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3021 size_t *serverinfo_length
)
3023 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3024 *serverinfo_length
= 0;
3026 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3029 *serverinfo
= cpk
->serverinfo
;
3030 *serverinfo_length
= cpk
->serverinfo_length
;
3034 void ssl_update_cache(SSL
*s
, int mode
)
3039 * If the session_id_length is 0, we are not supposed to cache it, and it
3040 * would be rather hard to do anyway :-)
3042 if (s
->session
->session_id_length
== 0)
3045 i
= s
->session_ctx
->session_cache_mode
;
3046 if ((i
& mode
) && (!s
->hit
)
3047 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
3048 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3049 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
3050 SSL_SESSION_up_ref(s
->session
);
3051 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3052 SSL_SESSION_free(s
->session
);
3055 /* auto flush every 255 connections */
3056 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3057 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
3058 ? s
->session_ctx
->stats
.sess_connect_good
3059 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
3060 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3065 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3070 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3075 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3079 if (s
->method
!= meth
) {
3080 const SSL_METHOD
*sm
= s
->method
;
3081 int (*hf
) (SSL
*) = s
->handshake_func
;
3083 if (sm
->version
== meth
->version
)
3088 ret
= s
->method
->ssl_new(s
);
3091 if (hf
== sm
->ssl_connect
)
3092 s
->handshake_func
= meth
->ssl_connect
;
3093 else if (hf
== sm
->ssl_accept
)
3094 s
->handshake_func
= meth
->ssl_accept
;
3099 int SSL_get_error(const SSL
*s
, int i
)
3106 return (SSL_ERROR_NONE
);
3109 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3110 * where we do encode the error
3112 if ((l
= ERR_peek_error()) != 0) {
3113 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3114 return (SSL_ERROR_SYSCALL
);
3116 return (SSL_ERROR_SSL
);
3119 if (SSL_want_read(s
)) {
3120 bio
= SSL_get_rbio(s
);
3121 if (BIO_should_read(bio
))
3122 return (SSL_ERROR_WANT_READ
);
3123 else if (BIO_should_write(bio
))
3125 * This one doesn't make too much sense ... We never try to write
3126 * to the rbio, and an application program where rbio and wbio
3127 * are separate couldn't even know what it should wait for.
3128 * However if we ever set s->rwstate incorrectly (so that we have
3129 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3130 * wbio *are* the same, this test works around that bug; so it
3131 * might be safer to keep it.
3133 return (SSL_ERROR_WANT_WRITE
);
3134 else if (BIO_should_io_special(bio
)) {
3135 reason
= BIO_get_retry_reason(bio
);
3136 if (reason
== BIO_RR_CONNECT
)
3137 return (SSL_ERROR_WANT_CONNECT
);
3138 else if (reason
== BIO_RR_ACCEPT
)
3139 return (SSL_ERROR_WANT_ACCEPT
);
3141 return (SSL_ERROR_SYSCALL
); /* unknown */
3145 if (SSL_want_write(s
)) {
3146 /* Access wbio directly - in order to use the buffered bio if present */
3148 if (BIO_should_write(bio
))
3149 return (SSL_ERROR_WANT_WRITE
);
3150 else if (BIO_should_read(bio
))
3152 * See above (SSL_want_read(s) with BIO_should_write(bio))
3154 return (SSL_ERROR_WANT_READ
);
3155 else if (BIO_should_io_special(bio
)) {
3156 reason
= BIO_get_retry_reason(bio
);
3157 if (reason
== BIO_RR_CONNECT
)
3158 return (SSL_ERROR_WANT_CONNECT
);
3159 else if (reason
== BIO_RR_ACCEPT
)
3160 return (SSL_ERROR_WANT_ACCEPT
);
3162 return (SSL_ERROR_SYSCALL
);
3165 if (SSL_want_x509_lookup(s
))
3166 return (SSL_ERROR_WANT_X509_LOOKUP
);
3167 if (SSL_want_async(s
))
3168 return SSL_ERROR_WANT_ASYNC
;
3169 if (SSL_want_async_job(s
))
3170 return SSL_ERROR_WANT_ASYNC_JOB
;
3171 if (SSL_want_early(s
))
3172 return SSL_ERROR_WANT_EARLY
;
3174 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3175 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3176 return (SSL_ERROR_ZERO_RETURN
);
3178 return (SSL_ERROR_SYSCALL
);
3181 static int ssl_do_handshake_intern(void *vargs
)
3183 struct ssl_async_args
*args
;
3186 args
= (struct ssl_async_args
*)vargs
;
3189 return s
->handshake_func(s
);
3192 int SSL_do_handshake(SSL
*s
)
3196 if (s
->handshake_func
== NULL
) {
3197 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3201 ossl_statem_check_finish_init(s
, -1);
3203 s
->method
->ssl_renegotiate_check(s
, 0);
3205 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3206 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3207 struct ssl_async_args args
;
3211 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3213 ret
= s
->handshake_func(s
);
3219 void SSL_set_accept_state(SSL
*s
)
3223 ossl_statem_clear(s
);
3224 s
->handshake_func
= s
->method
->ssl_accept
;
3228 void SSL_set_connect_state(SSL
*s
)
3232 ossl_statem_clear(s
);
3233 s
->handshake_func
= s
->method
->ssl_connect
;
3237 int ssl_undefined_function(SSL
*s
)
3239 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3243 int ssl_undefined_void_function(void)
3245 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3246 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3250 int ssl_undefined_const_function(const SSL
*s
)
3255 const SSL_METHOD
*ssl_bad_method(int ver
)
3257 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3261 const char *ssl_protocol_to_string(int version
)
3265 case TLS1_3_VERSION
:
3268 case TLS1_2_VERSION
:
3271 case TLS1_1_VERSION
:
3286 case DTLS1_2_VERSION
:
3294 const char *SSL_get_version(const SSL
*s
)
3296 return ssl_protocol_to_string(s
->version
);
3299 SSL
*SSL_dup(SSL
*s
)
3301 STACK_OF(X509_NAME
) *sk
;
3306 /* If we're not quiescent, just up_ref! */
3307 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3308 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3313 * Otherwise, copy configuration state, and session if set.
3315 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3318 if (s
->session
!= NULL
) {
3320 * Arranges to share the same session via up_ref. This "copies"
3321 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3323 if (!SSL_copy_session_id(ret
, s
))
3327 * No session has been established yet, so we have to expect that
3328 * s->cert or ret->cert will be changed later -- they should not both
3329 * point to the same object, and thus we can't use
3330 * SSL_copy_session_id.
3332 if (!SSL_set_ssl_method(ret
, s
->method
))
3335 if (s
->cert
!= NULL
) {
3336 ssl_cert_free(ret
->cert
);
3337 ret
->cert
= ssl_cert_dup(s
->cert
);
3338 if (ret
->cert
== NULL
)
3342 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3343 (int)s
->sid_ctx_length
))
3347 if (!ssl_dane_dup(ret
, s
))
3349 ret
->version
= s
->version
;
3350 ret
->options
= s
->options
;
3351 ret
->mode
= s
->mode
;
3352 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3353 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3354 ret
->msg_callback
= s
->msg_callback
;
3355 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3356 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3357 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3358 ret
->generate_session_id
= s
->generate_session_id
;
3360 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3362 /* copy app data, a little dangerous perhaps */
3363 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3366 /* setup rbio, and wbio */
3367 if (s
->rbio
!= NULL
) {
3368 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3371 if (s
->wbio
!= NULL
) {
3372 if (s
->wbio
!= s
->rbio
) {
3373 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3376 BIO_up_ref(ret
->rbio
);
3377 ret
->wbio
= ret
->rbio
;
3381 ret
->server
= s
->server
;
3382 if (s
->handshake_func
) {
3384 SSL_set_accept_state(ret
);
3386 SSL_set_connect_state(ret
);
3388 ret
->shutdown
= s
->shutdown
;
3391 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3392 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3394 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3396 /* dup the cipher_list and cipher_list_by_id stacks */
3397 if (s
->cipher_list
!= NULL
) {
3398 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3401 if (s
->cipher_list_by_id
!= NULL
)
3402 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3406 /* Dup the client_CA list */
3407 if (s
->ca_names
!= NULL
) {
3408 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3411 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3412 xn
= sk_X509_NAME_value(sk
, i
);
3413 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3426 void ssl_clear_cipher_ctx(SSL
*s
)
3428 if (s
->enc_read_ctx
!= NULL
) {
3429 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3430 s
->enc_read_ctx
= NULL
;
3432 if (s
->enc_write_ctx
!= NULL
) {
3433 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3434 s
->enc_write_ctx
= NULL
;
3436 #ifndef OPENSSL_NO_COMP
3437 COMP_CTX_free(s
->expand
);
3439 COMP_CTX_free(s
->compress
);
3444 X509
*SSL_get_certificate(const SSL
*s
)
3446 if (s
->cert
!= NULL
)
3447 return (s
->cert
->key
->x509
);
3452 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3454 if (s
->cert
!= NULL
)
3455 return (s
->cert
->key
->privatekey
);
3460 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3462 if (ctx
->cert
!= NULL
)
3463 return ctx
->cert
->key
->x509
;
3468 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3470 if (ctx
->cert
!= NULL
)
3471 return ctx
->cert
->key
->privatekey
;
3476 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3478 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3479 return (s
->session
->cipher
);
3483 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3485 #ifndef OPENSSL_NO_COMP
3486 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3492 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3494 #ifndef OPENSSL_NO_COMP
3495 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3501 int ssl_init_wbio_buffer(SSL
*s
)
3505 if (s
->bbio
!= NULL
) {
3506 /* Already buffered. */
3510 bbio
= BIO_new(BIO_f_buffer());
3511 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3513 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3517 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3522 int ssl_free_wbio_buffer(SSL
*s
)
3524 /* callers ensure s is never null */
3525 if (s
->bbio
== NULL
)
3528 s
->wbio
= BIO_pop(s
->wbio
);
3529 if (!ossl_assert(s
->wbio
!= NULL
))
3537 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3539 ctx
->quiet_shutdown
= mode
;
3542 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3544 return (ctx
->quiet_shutdown
);
3547 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3549 s
->quiet_shutdown
= mode
;
3552 int SSL_get_quiet_shutdown(const SSL
*s
)
3554 return (s
->quiet_shutdown
);
3557 void SSL_set_shutdown(SSL
*s
, int mode
)
3562 int SSL_get_shutdown(const SSL
*s
)
3567 int SSL_version(const SSL
*s
)
3572 int SSL_client_version(const SSL
*s
)
3574 return s
->client_version
;
3577 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3582 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3585 if (ssl
->ctx
== ctx
)
3588 ctx
= ssl
->session_ctx
;
3589 new_cert
= ssl_cert_dup(ctx
->cert
);
3590 if (new_cert
== NULL
) {
3594 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3595 ssl_cert_free(new_cert
);
3599 ssl_cert_free(ssl
->cert
);
3600 ssl
->cert
= new_cert
;
3603 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3604 * so setter APIs must prevent invalid lengths from entering the system.
3606 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3610 * If the session ID context matches that of the parent SSL_CTX,
3611 * inherit it from the new SSL_CTX as well. If however the context does
3612 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3613 * leave it unchanged.
3615 if ((ssl
->ctx
!= NULL
) &&
3616 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3617 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3618 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3619 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3622 SSL_CTX_up_ref(ctx
);
3623 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3629 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3631 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3634 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3636 X509_LOOKUP
*lookup
;
3638 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3641 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3643 /* Clear any errors if the default directory does not exist */
3649 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3651 X509_LOOKUP
*lookup
;
3653 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3657 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3659 /* Clear any errors if the default file does not exist */
3665 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3668 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3671 void SSL_set_info_callback(SSL
*ssl
,
3672 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3674 ssl
->info_callback
= cb
;
3678 * One compiler (Diab DCC) doesn't like argument names in returned function
3681 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3684 return ssl
->info_callback
;
3687 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3689 ssl
->verify_result
= arg
;
3692 long SSL_get_verify_result(const SSL
*ssl
)
3694 return (ssl
->verify_result
);
3697 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3700 return sizeof(ssl
->s3
->client_random
);
3701 if (outlen
> sizeof(ssl
->s3
->client_random
))
3702 outlen
= sizeof(ssl
->s3
->client_random
);
3703 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3707 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3710 return sizeof(ssl
->s3
->server_random
);
3711 if (outlen
> sizeof(ssl
->s3
->server_random
))
3712 outlen
= sizeof(ssl
->s3
->server_random
);
3713 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3717 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3718 unsigned char *out
, size_t outlen
)
3721 return session
->master_key_length
;
3722 if (outlen
> session
->master_key_length
)
3723 outlen
= session
->master_key_length
;
3724 memcpy(out
, session
->master_key
, outlen
);
3728 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
3731 if (len
> sizeof(sess
->master_key
))
3734 memcpy(sess
->master_key
, in
, len
);
3735 sess
->master_key_length
= len
;
3740 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3742 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3745 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3747 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3750 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3752 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3755 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3757 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3760 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3762 return (ctx
->cert_store
);
3765 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3767 X509_STORE_free(ctx
->cert_store
);
3768 ctx
->cert_store
= store
;
3771 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3774 X509_STORE_up_ref(store
);
3775 SSL_CTX_set_cert_store(ctx
, store
);
3778 int SSL_want(const SSL
*s
)
3780 return (s
->rwstate
);
3784 * \brief Set the callback for generating temporary DH keys.
3785 * \param ctx the SSL context.
3786 * \param dh the callback
3789 #ifndef OPENSSL_NO_DH
3790 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3791 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3794 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3797 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3800 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3804 #ifndef OPENSSL_NO_PSK
3805 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3807 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3808 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3811 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3812 if (identity_hint
!= NULL
) {
3813 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3814 if (ctx
->cert
->psk_identity_hint
== NULL
)
3817 ctx
->cert
->psk_identity_hint
= NULL
;
3821 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3826 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3827 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3830 OPENSSL_free(s
->cert
->psk_identity_hint
);
3831 if (identity_hint
!= NULL
) {
3832 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3833 if (s
->cert
->psk_identity_hint
== NULL
)
3836 s
->cert
->psk_identity_hint
= NULL
;
3840 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3842 if (s
== NULL
|| s
->session
== NULL
)
3844 return (s
->session
->psk_identity_hint
);
3847 const char *SSL_get_psk_identity(const SSL
*s
)
3849 if (s
== NULL
|| s
->session
== NULL
)
3851 return (s
->session
->psk_identity
);
3854 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
3856 s
->psk_client_callback
= cb
;
3859 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
3861 ctx
->psk_client_callback
= cb
;
3864 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
3866 s
->psk_server_callback
= cb
;
3869 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
3871 ctx
->psk_server_callback
= cb
;
3875 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
3877 s
->psk_find_session_cb
= cb
;
3880 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
3881 SSL_psk_find_session_cb_func cb
)
3883 ctx
->psk_find_session_cb
= cb
;
3886 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
3888 s
->psk_use_session_cb
= cb
;
3891 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
3892 SSL_psk_use_session_cb_func cb
)
3894 ctx
->psk_use_session_cb
= cb
;
3897 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3898 void (*cb
) (int write_p
, int version
,
3899 int content_type
, const void *buf
,
3900 size_t len
, SSL
*ssl
, void *arg
))
3902 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3905 void SSL_set_msg_callback(SSL
*ssl
,
3906 void (*cb
) (int write_p
, int version
,
3907 int content_type
, const void *buf
,
3908 size_t len
, SSL
*ssl
, void *arg
))
3910 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3913 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3914 int (*cb
) (SSL
*ssl
,
3918 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3919 (void (*)(void))cb
);
3922 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3923 int (*cb
) (SSL
*ssl
,
3924 int is_forward_secure
))
3926 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3927 (void (*)(void))cb
);
3930 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
3931 size_t (*cb
) (SSL
*ssl
, int type
,
3932 size_t len
, void *arg
))
3934 ctx
->record_padding_cb
= cb
;
3937 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
3939 ctx
->record_padding_arg
= arg
;
3942 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
3944 return ctx
->record_padding_arg
;
3947 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
3949 /* block size of 0 or 1 is basically no padding */
3950 if (block_size
== 1)
3951 ctx
->block_padding
= 0;
3952 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
3953 ctx
->block_padding
= block_size
;
3959 void SSL_set_record_padding_callback(SSL
*ssl
,
3960 size_t (*cb
) (SSL
*ssl
, int type
,
3961 size_t len
, void *arg
))
3963 ssl
->record_padding_cb
= cb
;
3966 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
3968 ssl
->record_padding_arg
= arg
;
3971 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
3973 return ssl
->record_padding_arg
;
3976 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
3978 /* block size of 0 or 1 is basically no padding */
3979 if (block_size
== 1)
3980 ssl
->block_padding
= 0;
3981 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
3982 ssl
->block_padding
= block_size
;
3989 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3990 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
3991 * If EVP_MD pointer is passed, initializes ctx with this |md|.
3992 * Returns the newly allocated ctx;
3995 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3997 ssl_clear_hash_ctx(hash
);
3998 *hash
= EVP_MD_CTX_new();
3999 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4000 EVP_MD_CTX_free(*hash
);
4007 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4010 EVP_MD_CTX_free(*hash
);
4014 /* Retrieve handshake hashes */
4015 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4018 EVP_MD_CTX
*ctx
= NULL
;
4019 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4020 int hashleni
= EVP_MD_CTX_size(hdgst
);
4023 if (hashleni
< 0 || (size_t)hashleni
> outlen
)
4026 ctx
= EVP_MD_CTX_new();
4030 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4031 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
4034 *hashlen
= hashleni
;
4038 EVP_MD_CTX_free(ctx
);
4042 int SSL_session_reused(SSL
*s
)
4047 int SSL_is_server(const SSL
*s
)
4052 #if OPENSSL_API_COMPAT < 0x10100000L
4053 void SSL_set_debug(SSL
*s
, int debug
)
4055 /* Old function was do-nothing anyway... */
4061 void SSL_set_security_level(SSL
*s
, int level
)
4063 s
->cert
->sec_level
= level
;
4066 int SSL_get_security_level(const SSL
*s
)
4068 return s
->cert
->sec_level
;
4071 void SSL_set_security_callback(SSL
*s
,
4072 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4073 int op
, int bits
, int nid
,
4074 void *other
, void *ex
))
4076 s
->cert
->sec_cb
= cb
;
4079 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4080 const SSL_CTX
*ctx
, int op
,
4081 int bits
, int nid
, void *other
,
4083 return s
->cert
->sec_cb
;
4086 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4088 s
->cert
->sec_ex
= ex
;
4091 void *SSL_get0_security_ex_data(const SSL
*s
)
4093 return s
->cert
->sec_ex
;
4096 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4098 ctx
->cert
->sec_level
= level
;
4101 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4103 return ctx
->cert
->sec_level
;
4106 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4107 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4108 int op
, int bits
, int nid
,
4109 void *other
, void *ex
))
4111 ctx
->cert
->sec_cb
= cb
;
4114 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4120 return ctx
->cert
->sec_cb
;
4123 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4125 ctx
->cert
->sec_ex
= ex
;
4128 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4130 return ctx
->cert
->sec_ex
;
4134 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4135 * can return unsigned long, instead of the generic long return value from the
4136 * control interface.
4138 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4140 return ctx
->options
;
4143 unsigned long SSL_get_options(const SSL
*s
)
4148 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4150 return ctx
->options
|= op
;
4153 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4155 return s
->options
|= op
;
4158 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4160 return ctx
->options
&= ~op
;
4163 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4165 return s
->options
&= ~op
;
4168 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4170 return s
->verified_chain
;
4173 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4175 #ifndef OPENSSL_NO_CT
4178 * Moves SCTs from the |src| stack to the |dst| stack.
4179 * The source of each SCT will be set to |origin|.
4180 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4182 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4184 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4185 sct_source_t origin
)
4191 *dst
= sk_SCT_new_null();
4193 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4198 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4199 if (SCT_set_source(sct
, origin
) != 1)
4202 if (sk_SCT_push(*dst
, sct
) <= 0)
4210 sk_SCT_push(src
, sct
); /* Put the SCT back */
4215 * Look for data collected during ServerHello and parse if found.
4216 * Returns the number of SCTs extracted.
4218 static int ct_extract_tls_extension_scts(SSL
*s
)
4220 int scts_extracted
= 0;
4222 if (s
->ext
.scts
!= NULL
) {
4223 const unsigned char *p
= s
->ext
.scts
;
4224 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4226 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4228 SCT_LIST_free(scts
);
4231 return scts_extracted
;
4235 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4236 * contains an SCT X509 extension. They will be stored in |s->scts|.
4238 * - The number of SCTs extracted, assuming an OCSP response exists.
4239 * - 0 if no OCSP response exists or it contains no SCTs.
4240 * - A negative integer if an error occurs.
4242 static int ct_extract_ocsp_response_scts(SSL
*s
)
4244 # ifndef OPENSSL_NO_OCSP
4245 int scts_extracted
= 0;
4246 const unsigned char *p
;
4247 OCSP_BASICRESP
*br
= NULL
;
4248 OCSP_RESPONSE
*rsp
= NULL
;
4249 STACK_OF(SCT
) *scts
= NULL
;
4252 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4255 p
= s
->ext
.ocsp
.resp
;
4256 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4260 br
= OCSP_response_get1_basic(rsp
);
4264 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4265 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4271 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4273 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4274 if (scts_extracted
< 0)
4278 SCT_LIST_free(scts
);
4279 OCSP_BASICRESP_free(br
);
4280 OCSP_RESPONSE_free(rsp
);
4281 return scts_extracted
;
4283 /* Behave as if no OCSP response exists */
4289 * Attempts to extract SCTs from the peer certificate.
4290 * Return the number of SCTs extracted, or a negative integer if an error
4293 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4295 int scts_extracted
= 0;
4296 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4299 STACK_OF(SCT
) *scts
=
4300 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4303 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4305 SCT_LIST_free(scts
);
4308 return scts_extracted
;
4312 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4313 * response (if it exists) and X509v3 extensions in the certificate.
4314 * Returns NULL if an error occurs.
4316 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4318 if (!s
->scts_parsed
) {
4319 if (ct_extract_tls_extension_scts(s
) < 0 ||
4320 ct_extract_ocsp_response_scts(s
) < 0 ||
4321 ct_extract_x509v3_extension_scts(s
) < 0)
4331 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4332 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4337 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4338 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4340 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4343 for (i
= 0; i
< count
; ++i
) {
4344 SCT
*sct
= sk_SCT_value(scts
, i
);
4345 int status
= SCT_get_validation_status(sct
);
4347 if (status
== SCT_VALIDATION_STATUS_VALID
)
4350 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4354 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4358 * Since code exists that uses the custom extension handler for CT, look
4359 * for this and throw an error if they have already registered to use CT.
4361 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4362 TLSEXT_TYPE_signed_certificate_timestamp
))
4364 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4365 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4369 if (callback
!= NULL
) {
4371 * If we are validating CT, then we MUST accept SCTs served via OCSP
4373 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4377 s
->ct_validation_callback
= callback
;
4378 s
->ct_validation_callback_arg
= arg
;
4383 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4384 ssl_ct_validation_cb callback
, void *arg
)
4387 * Since code exists that uses the custom extension handler for CT, look for
4388 * this and throw an error if they have already registered to use CT.
4390 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4391 TLSEXT_TYPE_signed_certificate_timestamp
))
4393 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4394 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4398 ctx
->ct_validation_callback
= callback
;
4399 ctx
->ct_validation_callback_arg
= arg
;
4403 int SSL_ct_is_enabled(const SSL
*s
)
4405 return s
->ct_validation_callback
!= NULL
;
4408 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4410 return ctx
->ct_validation_callback
!= NULL
;
4413 int ssl_validate_ct(SSL
*s
)
4416 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4418 SSL_DANE
*dane
= &s
->dane
;
4419 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4420 const STACK_OF(SCT
) *scts
;
4423 * If no callback is set, the peer is anonymous, or its chain is invalid,
4424 * skip SCT validation - just return success. Applications that continue
4425 * handshakes without certificates, with unverified chains, or pinned leaf
4426 * certificates are outside the scope of the WebPKI and CT.
4428 * The above exclusions notwithstanding the vast majority of peers will
4429 * have rather ordinary certificate chains validated by typical
4430 * applications that perform certificate verification and therefore will
4431 * process SCTs when enabled.
4433 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4434 s
->verify_result
!= X509_V_OK
||
4435 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4439 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4440 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4442 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4443 switch (dane
->mtlsa
->usage
) {
4444 case DANETLS_USAGE_DANE_TA
:
4445 case DANETLS_USAGE_DANE_EE
:
4450 ctx
= CT_POLICY_EVAL_CTX_new();
4452 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4456 issuer
= sk_X509_value(s
->verified_chain
, 1);
4457 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4458 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4459 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4460 CT_POLICY_EVAL_CTX_set_time(
4461 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4463 scts
= SSL_get0_peer_scts(s
);
4466 * This function returns success (> 0) only when all the SCTs are valid, 0
4467 * when some are invalid, and < 0 on various internal errors (out of
4468 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4469 * reason to abort the handshake, that decision is up to the callback.
4470 * Therefore, we error out only in the unexpected case that the return
4471 * value is negative.
4473 * XXX: One might well argue that the return value of this function is an
4474 * unfortunate design choice. Its job is only to determine the validation
4475 * status of each of the provided SCTs. So long as it correctly separates
4476 * the wheat from the chaff it should return success. Failure in this case
4477 * ought to correspond to an inability to carry out its duties.
4479 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4480 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4484 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4486 ret
= 0; /* This function returns 0 on failure */
4489 CT_POLICY_EVAL_CTX_free(ctx
);
4491 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4492 * failure return code here. Also the application may wish the complete
4493 * the handshake, and then disconnect cleanly at a higher layer, after
4494 * checking the verification status of the completed connection.
4496 * We therefore force a certificate verification failure which will be
4497 * visible via SSL_get_verify_result() and cached as part of any resumed
4500 * Note: the permissive callback is for information gathering only, always
4501 * returns success, and does not affect verification status. Only the
4502 * strict callback or a custom application-specified callback can trigger
4503 * connection failure or record a verification error.
4506 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4510 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4512 switch (validation_mode
) {
4514 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4516 case SSL_CT_VALIDATION_PERMISSIVE
:
4517 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4518 case SSL_CT_VALIDATION_STRICT
:
4519 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4523 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4525 switch (validation_mode
) {
4527 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4529 case SSL_CT_VALIDATION_PERMISSIVE
:
4530 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4531 case SSL_CT_VALIDATION_STRICT
:
4532 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4536 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4538 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4541 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4543 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4546 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4548 CTLOG_STORE_free(ctx
->ctlog_store
);
4549 ctx
->ctlog_store
= logs
;
4552 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4554 return ctx
->ctlog_store
;
4557 #endif /* OPENSSL_NO_CT */
4559 void SSL_CTX_set_early_cb(SSL_CTX
*c
, SSL_early_cb_fn cb
, void *arg
)
4562 c
->early_cb_arg
= arg
;
4565 int SSL_early_isv2(SSL
*s
)
4567 if (s
->clienthello
== NULL
)
4569 return s
->clienthello
->isv2
;
4572 unsigned int SSL_early_get0_legacy_version(SSL
*s
)
4574 if (s
->clienthello
== NULL
)
4576 return s
->clienthello
->legacy_version
;
4579 size_t SSL_early_get0_random(SSL
*s
, const unsigned char **out
)
4581 if (s
->clienthello
== NULL
)
4584 *out
= s
->clienthello
->random
;
4585 return SSL3_RANDOM_SIZE
;
4588 size_t SSL_early_get0_session_id(SSL
*s
, const unsigned char **out
)
4590 if (s
->clienthello
== NULL
)
4593 *out
= s
->clienthello
->session_id
;
4594 return s
->clienthello
->session_id_len
;
4597 size_t SSL_early_get0_ciphers(SSL
*s
, const unsigned char **out
)
4599 if (s
->clienthello
== NULL
)
4602 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4603 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4606 size_t SSL_early_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4608 if (s
->clienthello
== NULL
)
4611 *out
= s
->clienthello
->compressions
;
4612 return s
->clienthello
->compressions_len
;
4615 int SSL_early_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4621 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4623 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4624 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4628 present
= OPENSSL_malloc(sizeof(*present
) * num
);
4629 if (present
== NULL
)
4631 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4632 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4634 if (ext
->received_order
>= num
)
4636 present
[ext
->received_order
] = ext
->type
;
4643 OPENSSL_free(present
);
4647 int SSL_early_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4653 if (s
->clienthello
== NULL
)
4655 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4656 r
= s
->clienthello
->pre_proc_exts
+ i
;
4657 if (r
->present
&& r
->type
== type
) {
4659 *out
= PACKET_data(&r
->data
);
4661 *outlen
= PACKET_remaining(&r
->data
);
4668 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4670 ctx
->keylog_callback
= cb
;
4673 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4675 return ctx
->keylog_callback
;
4678 static int nss_keylog_int(const char *prefix
,
4680 const uint8_t *parameter_1
,
4681 size_t parameter_1_len
,
4682 const uint8_t *parameter_2
,
4683 size_t parameter_2_len
)
4686 char *cursor
= NULL
;
4691 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
4694 * Our output buffer will contain the following strings, rendered with
4695 * space characters in between, terminated by a NULL character: first the
4696 * prefix, then the first parameter, then the second parameter. The
4697 * meaning of each parameter depends on the specific key material being
4698 * logged. Note that the first and second parameters are encoded in
4699 * hexadecimal, so we need a buffer that is twice their lengths.
4701 prefix_len
= strlen(prefix
);
4702 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
4703 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
4704 SSLerr(SSL_F_NSS_KEYLOG_INT
, ERR_R_MALLOC_FAILURE
);
4708 strcpy(cursor
, prefix
);
4709 cursor
+= prefix_len
;
4712 for (i
= 0; i
< parameter_1_len
; i
++) {
4713 sprintf(cursor
, "%02x", parameter_1
[i
]);
4718 for (i
= 0; i
< parameter_2_len
; i
++) {
4719 sprintf(cursor
, "%02x", parameter_2
[i
]);
4724 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
4730 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
4731 const uint8_t *encrypted_premaster
,
4732 size_t encrypted_premaster_len
,
4733 const uint8_t *premaster
,
4734 size_t premaster_len
)
4736 if (encrypted_premaster_len
< 8) {
4737 SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
4741 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
4742 return nss_keylog_int("RSA",
4744 encrypted_premaster
,
4750 int ssl_log_secret(SSL
*ssl
,
4752 const uint8_t *secret
,
4755 return nss_keylog_int(label
,
4757 ssl
->s3
->client_random
,
4763 #define SSLV2_CIPHER_LEN 3
4765 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
,
4770 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4772 if (PACKET_remaining(cipher_suites
) == 0) {
4773 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4774 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4778 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4779 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
,
4780 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4781 *al
= SSL_AD_DECODE_ERROR
;
4785 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4786 s
->s3
->tmp
.ciphers_raw
= NULL
;
4787 s
->s3
->tmp
.ciphers_rawlen
= 0;
4790 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
4791 PACKET sslv2ciphers
= *cipher_suites
;
4792 unsigned int leadbyte
;
4796 * We store the raw ciphers list in SSLv3+ format so we need to do some
4797 * preprocessing to convert the list first. If there are any SSLv2 only
4798 * ciphersuites with a non-zero leading byte then we are going to
4799 * slightly over allocate because we won't store those. But that isn't a
4802 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
4803 s
->s3
->tmp
.ciphers_raw
= raw
;
4805 *al
= SSL_AD_INTERNAL_ERROR
;
4808 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
4809 PACKET_remaining(&sslv2ciphers
) > 0;
4810 raw
+= TLS_CIPHER_LEN
) {
4811 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
4813 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
4816 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
4817 *al
= SSL_AD_DECODE_ERROR
;
4818 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4819 s
->s3
->tmp
.ciphers_raw
= NULL
;
4820 s
->s3
->tmp
.ciphers_rawlen
= 0;
4824 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
4826 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
4827 &s
->s3
->tmp
.ciphers_rawlen
)) {
4828 *al
= SSL_AD_INTERNAL_ERROR
;
4836 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
4837 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
4838 STACK_OF(SSL_CIPHER
) **scsvs
)
4843 if (!PACKET_buf_init(&pkt
, bytes
, len
))
4845 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, &alert
);
4848 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
4849 STACK_OF(SSL_CIPHER
) **skp
,
4850 STACK_OF(SSL_CIPHER
) **scsvs_out
,
4851 int sslv2format
, int *al
)
4853 const SSL_CIPHER
*c
;
4854 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
4855 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
4857 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
4858 unsigned char cipher
[SSLV2_CIPHER_LEN
];
4860 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4862 if (PACKET_remaining(cipher_suites
) == 0) {
4863 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4864 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4868 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4869 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
4870 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4871 *al
= SSL_AD_DECODE_ERROR
;
4875 sk
= sk_SSL_CIPHER_new_null();
4876 scsvs
= sk_SSL_CIPHER_new_null();
4877 if (sk
== NULL
|| scsvs
== NULL
) {
4878 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
4879 *al
= SSL_AD_INTERNAL_ERROR
;
4883 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
4885 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
4886 * first byte set to zero, while true SSLv2 ciphers have a non-zero
4887 * first byte. We don't support any true SSLv2 ciphers, so skip them.
4889 if (sslv2format
&& cipher
[0] != '\0')
4892 /* For SSLv2-compat, ignore leading 0-byte. */
4893 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
4895 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
4896 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
4897 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
4898 *al
= SSL_AD_INTERNAL_ERROR
;
4903 if (PACKET_remaining(cipher_suites
) > 0) {
4904 *al
= SSL_AD_DECODE_ERROR
;
4905 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
4912 sk_SSL_CIPHER_free(sk
);
4913 if (scsvs_out
!= NULL
)
4916 sk_SSL_CIPHER_free(scsvs
);
4919 sk_SSL_CIPHER_free(sk
);
4920 sk_SSL_CIPHER_free(scsvs
);
4924 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
4926 ctx
->max_early_data
= max_early_data
;
4931 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
4933 return ctx
->max_early_data
;
4936 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
4938 s
->max_early_data
= max_early_data
;
4943 uint32_t SSL_get_max_early_data(const SSL
*s
)
4945 return s
->max_early_data
;