2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * ECC cipher suite support in OpenSSL originally developed by
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
15 /* ====================================================================
16 * Copyright 2005 Nokia. All rights reserved.
18 * The portions of the attached software ("Contribution") is developed by
19 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
22 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
23 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
24 * support (see RFC 4279) to OpenSSL.
26 * No patent licenses or other rights except those expressly stated in
27 * the OpenSSL open source license shall be deemed granted or received
28 * expressly, by implication, estoppel, or otherwise.
30 * No assurances are provided by Nokia that the Contribution does not
31 * infringe the patent or other intellectual property rights of any third
32 * party or that the license provides you with all the necessary rights
33 * to make use of the Contribution.
35 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
36 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
37 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
38 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
45 #include <openssl/objects.h>
46 #include <openssl/lhash.h>
47 #include <openssl/x509v3.h>
48 #include <openssl/rand.h>
49 #include <openssl/ocsp.h>
50 #include <openssl/dh.h>
51 #include <openssl/engine.h>
52 #include <openssl/async.h>
53 #include <openssl/ct.h>
55 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
57 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
59 * evil casts, but these functions are only called if there's a library
62 (int (*)(SSL
*, SSL3_RECORD
*, size_t, int))ssl_undefined_function
,
63 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
64 ssl_undefined_function
,
65 (int (*)(SSL
*, unsigned char *, unsigned char *, size_t, size_t *))
66 ssl_undefined_function
,
67 (int (*)(SSL
*, int))ssl_undefined_function
,
68 (size_t (*)(SSL
*, const char *, size_t, unsigned char *))
69 ssl_undefined_function
,
70 NULL
, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL
, /* server_finished_label */
73 0, /* server_finished_label_len */
74 (int (*)(int))ssl_undefined_function
,
75 (int (*)(SSL
*, unsigned char *, size_t, const char *,
76 size_t, const unsigned char *, size_t,
77 int use_context
))ssl_undefined_function
,
80 struct ssl_async_args
{
84 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
86 int (*func_read
) (SSL
*, void *, size_t, size_t *);
87 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
88 int (*func_other
) (SSL
*);
98 DANETLS_MATCHING_FULL
, 0, NID_undef
101 DANETLS_MATCHING_2256
, 1, NID_sha256
104 DANETLS_MATCHING_2512
, 2, NID_sha512
108 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
110 const EVP_MD
**mdevp
;
112 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
113 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
116 if (dctx
->mdevp
!= NULL
)
119 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
120 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
122 if (mdord
== NULL
|| mdevp
== NULL
) {
125 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
129 /* Install default entries */
130 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
133 if (dane_mds
[i
].nid
== NID_undef
||
134 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
136 mdevp
[dane_mds
[i
].mtype
] = md
;
137 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
147 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
149 OPENSSL_free(dctx
->mdevp
);
152 OPENSSL_free(dctx
->mdord
);
157 static void tlsa_free(danetls_record
*t
)
161 OPENSSL_free(t
->data
);
162 EVP_PKEY_free(t
->spki
);
166 static void dane_final(SSL_DANE
*dane
)
168 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
171 sk_X509_pop_free(dane
->certs
, X509_free
);
174 X509_free(dane
->mcert
);
182 * dane_copy - Copy dane configuration, sans verification state.
184 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
189 if (!DANETLS_ENABLED(&from
->dane
))
192 dane_final(&to
->dane
);
193 to
->dane
.flags
= from
->dane
.flags
;
194 to
->dane
.dctx
= &to
->ctx
->dane
;
195 to
->dane
.trecs
= sk_danetls_record_new_null();
197 if (to
->dane
.trecs
== NULL
) {
198 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
202 num
= sk_danetls_record_num(from
->dane
.trecs
);
203 for (i
= 0; i
< num
; ++i
) {
204 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
206 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
207 t
->data
, t
->dlen
) <= 0)
213 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
214 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
218 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
219 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
223 if (mtype
> dctx
->mdmax
) {
224 const EVP_MD
**mdevp
;
226 int n
= ((int)mtype
) + 1;
228 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
230 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
235 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
237 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
242 /* Zero-fill any gaps */
243 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
251 dctx
->mdevp
[mtype
] = md
;
252 /* Coerce ordinal of disabled matching types to 0 */
253 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
258 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
260 if (mtype
> dane
->dctx
->mdmax
)
262 return dane
->dctx
->mdevp
[mtype
];
265 static int dane_tlsa_add(SSL_DANE
*dane
,
268 uint8_t mtype
, unsigned char *data
, size_t dlen
)
271 const EVP_MD
*md
= NULL
;
272 int ilen
= (int)dlen
;
276 if (dane
->trecs
== NULL
) {
277 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
281 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
282 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
286 if (usage
> DANETLS_USAGE_LAST
) {
287 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
291 if (selector
> DANETLS_SELECTOR_LAST
) {
292 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
296 if (mtype
!= DANETLS_MATCHING_FULL
) {
297 md
= tlsa_md_get(dane
, mtype
);
299 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
304 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
305 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
309 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
313 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
314 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
319 t
->selector
= selector
;
321 t
->data
= OPENSSL_malloc(dlen
);
322 if (t
->data
== NULL
) {
324 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
327 memcpy(t
->data
, data
, dlen
);
330 /* Validate and cache full certificate or public key */
331 if (mtype
== DANETLS_MATCHING_FULL
) {
332 const unsigned char *p
= data
;
334 EVP_PKEY
*pkey
= NULL
;
337 case DANETLS_SELECTOR_CERT
:
338 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
339 dlen
!= (size_t)(p
- data
)) {
341 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
344 if (X509_get0_pubkey(cert
) == NULL
) {
346 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
350 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
356 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
357 * records that contain full certificates of trust-anchors that are
358 * not present in the wire chain. For usage PKIX-TA(0), we augment
359 * the chain with untrusted Full(0) certificates from DNS, in case
360 * they are missing from the chain.
362 if ((dane
->certs
== NULL
&&
363 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
364 !sk_X509_push(dane
->certs
, cert
)) {
365 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
372 case DANETLS_SELECTOR_SPKI
:
373 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
374 dlen
!= (size_t)(p
- data
)) {
376 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
381 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
382 * records that contain full bare keys of trust-anchors that are
383 * not present in the wire chain.
385 if (usage
== DANETLS_USAGE_DANE_TA
)
394 * Find the right insertion point for the new record.
396 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
397 * they can be processed first, as they require no chain building, and no
398 * expiration or hostname checks. Because DANE-EE(3) is numerically
399 * largest, this is accomplished via descending sort by "usage".
401 * We also sort in descending order by matching ordinal to simplify
402 * the implementation of digest agility in the verification code.
404 * The choice of order for the selector is not significant, so we
405 * use the same descending order for consistency.
407 num
= sk_danetls_record_num(dane
->trecs
);
408 for (i
= 0; i
< num
; ++i
) {
409 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
411 if (rec
->usage
> usage
)
413 if (rec
->usage
< usage
)
415 if (rec
->selector
> selector
)
417 if (rec
->selector
< selector
)
419 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
424 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
426 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
429 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
434 static void clear_ciphers(SSL
*s
)
436 /* clear the current cipher */
437 ssl_clear_cipher_ctx(s
);
438 ssl_clear_hash_ctx(&s
->read_hash
);
439 ssl_clear_hash_ctx(&s
->write_hash
);
442 int SSL_clear(SSL
*s
)
444 if (s
->method
== NULL
) {
445 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
449 if (ssl_clear_bad_session(s
)) {
450 SSL_SESSION_free(s
->session
);
458 if (s
->renegotiate
) {
459 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
463 ossl_statem_clear(s
);
465 s
->version
= s
->method
->version
;
466 s
->client_version
= s
->version
;
467 s
->rwstate
= SSL_NOTHING
;
469 BUF_MEM_free(s
->init_buf
);
474 s
->key_update
= SSL_KEY_UPDATE_NONE
;
476 /* Reset DANE verification result state */
479 X509_free(s
->dane
.mcert
);
480 s
->dane
.mcert
= NULL
;
481 s
->dane
.mtlsa
= NULL
;
483 /* Clear the verification result peername */
484 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
487 * Check to see if we were changed into a different method, if so, revert
488 * back if we are not doing session-id reuse.
490 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
491 && (s
->method
!= s
->ctx
->method
)) {
492 s
->method
->ssl_free(s
);
493 s
->method
= s
->ctx
->method
;
494 if (!s
->method
->ssl_new(s
))
497 s
->method
->ssl_clear(s
);
499 RECORD_LAYER_clear(&s
->rlayer
);
504 /** Used to change an SSL_CTXs default SSL method type */
505 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
507 STACK_OF(SSL_CIPHER
) *sk
;
511 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
512 &(ctx
->cipher_list_by_id
),
513 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
514 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
515 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
521 SSL
*SSL_new(SSL_CTX
*ctx
)
526 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
529 if (ctx
->method
== NULL
) {
530 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
534 s
= OPENSSL_zalloc(sizeof(*s
));
538 s
->lock
= CRYPTO_THREAD_lock_new();
539 if (s
->lock
== NULL
) {
540 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
545 RECORD_LAYER_init(&s
->rlayer
, s
);
547 s
->options
= ctx
->options
;
548 s
->dane
.flags
= ctx
->dane
.flags
;
549 s
->min_proto_version
= ctx
->min_proto_version
;
550 s
->max_proto_version
= ctx
->max_proto_version
;
552 s
->max_cert_list
= ctx
->max_cert_list
;
554 s
->max_early_data
= ctx
->max_early_data
;
557 * Earlier library versions used to copy the pointer to the CERT, not
558 * its contents; only when setting new parameters for the per-SSL
559 * copy, ssl_cert_new would be called (and the direct reference to
560 * the per-SSL_CTX settings would be lost, but those still were
561 * indirectly accessed for various purposes, and for that reason they
562 * used to be known as s->ctx->default_cert). Now we don't look at the
563 * SSL_CTX's CERT after having duplicated it once.
565 s
->cert
= ssl_cert_dup(ctx
->cert
);
569 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
570 s
->msg_callback
= ctx
->msg_callback
;
571 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
572 s
->verify_mode
= ctx
->verify_mode
;
573 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
574 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
575 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
576 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
577 s
->verify_callback
= ctx
->default_verify_callback
;
578 s
->generate_session_id
= ctx
->generate_session_id
;
580 s
->param
= X509_VERIFY_PARAM_new();
581 if (s
->param
== NULL
)
583 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
584 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
585 s
->max_send_fragment
= ctx
->max_send_fragment
;
586 s
->split_send_fragment
= ctx
->split_send_fragment
;
587 s
->max_pipelines
= ctx
->max_pipelines
;
588 if (s
->max_pipelines
> 1)
589 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
590 if (ctx
->default_read_buf_len
> 0)
591 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
596 s
->ext
.debug_arg
= NULL
;
597 s
->ext
.ticket_expected
= 0;
598 s
->ext
.status_type
= ctx
->ext
.status_type
;
599 s
->ext
.status_expected
= 0;
600 s
->ext
.ocsp
.ids
= NULL
;
601 s
->ext
.ocsp
.exts
= NULL
;
602 s
->ext
.ocsp
.resp
= NULL
;
603 s
->ext
.ocsp
.resp_len
= 0;
605 s
->session_ctx
= ctx
;
606 #ifndef OPENSSL_NO_EC
607 if (ctx
->ext
.ecpointformats
) {
608 s
->ext
.ecpointformats
=
609 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
610 ctx
->ext
.ecpointformats_len
);
611 if (!s
->ext
.ecpointformats
)
613 s
->ext
.ecpointformats_len
=
614 ctx
->ext
.ecpointformats_len
;
616 if (ctx
->ext
.supportedgroups
) {
617 s
->ext
.supportedgroups
=
618 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
619 ctx
->ext
.supportedgroups_len
);
620 if (!s
->ext
.supportedgroups
)
622 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
625 #ifndef OPENSSL_NO_NEXTPROTONEG
629 if (s
->ctx
->ext
.alpn
) {
630 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
631 if (s
->ext
.alpn
== NULL
)
633 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
634 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
637 s
->verified_chain
= NULL
;
638 s
->verify_result
= X509_V_OK
;
640 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
641 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
643 s
->method
= ctx
->method
;
645 s
->key_update
= SSL_KEY_UPDATE_NONE
;
647 if (!s
->method
->ssl_new(s
))
650 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
655 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
658 #ifndef OPENSSL_NO_PSK
659 s
->psk_client_callback
= ctx
->psk_client_callback
;
660 s
->psk_server_callback
= ctx
->psk_server_callback
;
665 #ifndef OPENSSL_NO_CT
666 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
667 ctx
->ct_validation_callback_arg
))
674 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
678 int SSL_is_dtls(const SSL
*s
)
680 return SSL_IS_DTLS(s
) ? 1 : 0;
683 int SSL_up_ref(SSL
*s
)
687 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
690 REF_PRINT_COUNT("SSL", s
);
691 REF_ASSERT_ISNT(i
< 2);
692 return ((i
> 1) ? 1 : 0);
695 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
696 unsigned int sid_ctx_len
)
698 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
699 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
700 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
703 ctx
->sid_ctx_length
= sid_ctx_len
;
704 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
709 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
710 unsigned int sid_ctx_len
)
712 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
713 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
714 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
717 ssl
->sid_ctx_length
= sid_ctx_len
;
718 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
723 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
725 CRYPTO_THREAD_write_lock(ctx
->lock
);
726 ctx
->generate_session_id
= cb
;
727 CRYPTO_THREAD_unlock(ctx
->lock
);
731 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
733 CRYPTO_THREAD_write_lock(ssl
->lock
);
734 ssl
->generate_session_id
= cb
;
735 CRYPTO_THREAD_unlock(ssl
->lock
);
739 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
743 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
744 * we can "construct" a session to give us the desired check - i.e. to
745 * find if there's a session in the hash table that would conflict with
746 * any new session built out of this id/id_len and the ssl_version in use
751 if (id_len
> sizeof r
.session_id
)
754 r
.ssl_version
= ssl
->version
;
755 r
.session_id_length
= id_len
;
756 memcpy(r
.session_id
, id
, id_len
);
758 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
759 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
760 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
764 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
766 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
769 int SSL_set_purpose(SSL
*s
, int purpose
)
771 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
774 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
776 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
779 int SSL_set_trust(SSL
*s
, int trust
)
781 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
784 int SSL_set1_host(SSL
*s
, const char *hostname
)
786 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
789 int SSL_add1_host(SSL
*s
, const char *hostname
)
791 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
794 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
796 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
799 const char *SSL_get0_peername(SSL
*s
)
801 return X509_VERIFY_PARAM_get0_peername(s
->param
);
804 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
806 return dane_ctx_enable(&ctx
->dane
);
809 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
811 unsigned long orig
= ctx
->dane
.flags
;
813 ctx
->dane
.flags
|= flags
;
817 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
819 unsigned long orig
= ctx
->dane
.flags
;
821 ctx
->dane
.flags
&= ~flags
;
825 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
827 SSL_DANE
*dane
= &s
->dane
;
829 if (s
->ctx
->dane
.mdmax
== 0) {
830 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
833 if (dane
->trecs
!= NULL
) {
834 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
839 * Default SNI name. This rejects empty names, while set1_host below
840 * accepts them and disables host name checks. To avoid side-effects with
841 * invalid input, set the SNI name first.
843 if (s
->ext
.hostname
== NULL
) {
844 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
845 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
850 /* Primary RFC6125 reference identifier */
851 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
852 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
858 dane
->dctx
= &s
->ctx
->dane
;
859 dane
->trecs
= sk_danetls_record_new_null();
861 if (dane
->trecs
== NULL
) {
862 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
868 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
870 unsigned long orig
= ssl
->dane
.flags
;
872 ssl
->dane
.flags
|= flags
;
876 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
878 unsigned long orig
= ssl
->dane
.flags
;
880 ssl
->dane
.flags
&= ~flags
;
884 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
886 SSL_DANE
*dane
= &s
->dane
;
888 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
892 *mcert
= dane
->mcert
;
894 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
899 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
900 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
902 SSL_DANE
*dane
= &s
->dane
;
904 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
908 *usage
= dane
->mtlsa
->usage
;
910 *selector
= dane
->mtlsa
->selector
;
912 *mtype
= dane
->mtlsa
->mtype
;
914 *data
= dane
->mtlsa
->data
;
916 *dlen
= dane
->mtlsa
->dlen
;
921 SSL_DANE
*SSL_get0_dane(SSL
*s
)
926 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
927 uint8_t mtype
, unsigned char *data
, size_t dlen
)
929 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
932 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
935 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
938 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
940 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
943 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
945 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
948 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
953 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
958 void SSL_certs_clear(SSL
*s
)
960 ssl_cert_clear_certs(s
->cert
);
963 void SSL_free(SSL
*s
)
970 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
971 REF_PRINT_COUNT("SSL", s
);
974 REF_ASSERT_ISNT(i
< 0);
976 X509_VERIFY_PARAM_free(s
->param
);
977 dane_final(&s
->dane
);
978 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
980 ssl_free_wbio_buffer(s
);
982 BIO_free_all(s
->wbio
);
983 BIO_free_all(s
->rbio
);
985 BUF_MEM_free(s
->init_buf
);
987 /* add extra stuff */
988 sk_SSL_CIPHER_free(s
->cipher_list
);
989 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
991 /* Make the next call work :-) */
992 if (s
->session
!= NULL
) {
993 ssl_clear_bad_session(s
);
994 SSL_SESSION_free(s
->session
);
999 ssl_cert_free(s
->cert
);
1000 /* Free up if allocated */
1002 OPENSSL_free(s
->ext
.hostname
);
1003 SSL_CTX_free(s
->session_ctx
);
1004 #ifndef OPENSSL_NO_EC
1005 OPENSSL_free(s
->ext
.ecpointformats
);
1006 OPENSSL_free(s
->ext
.supportedgroups
);
1007 #endif /* OPENSSL_NO_EC */
1008 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1009 #ifndef OPENSSL_NO_OCSP
1010 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1012 #ifndef OPENSSL_NO_CT
1013 SCT_LIST_free(s
->scts
);
1014 OPENSSL_free(s
->ext
.scts
);
1016 OPENSSL_free(s
->ext
.ocsp
.resp
);
1017 OPENSSL_free(s
->ext
.alpn
);
1018 OPENSSL_free(s
->ext
.tls13_cookie
);
1019 OPENSSL_free(s
->clienthello
);
1021 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1023 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1025 if (s
->method
!= NULL
)
1026 s
->method
->ssl_free(s
);
1028 RECORD_LAYER_release(&s
->rlayer
);
1030 SSL_CTX_free(s
->ctx
);
1032 ASYNC_WAIT_CTX_free(s
->waitctx
);
1034 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1035 OPENSSL_free(s
->ext
.npn
);
1038 #ifndef OPENSSL_NO_SRTP
1039 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1042 CRYPTO_THREAD_lock_free(s
->lock
);
1047 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1049 BIO_free_all(s
->rbio
);
1053 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1056 * If the output buffering BIO is still in place, remove it
1058 if (s
->bbio
!= NULL
)
1059 s
->wbio
= BIO_pop(s
->wbio
);
1061 BIO_free_all(s
->wbio
);
1064 /* Re-attach |bbio| to the new |wbio|. */
1065 if (s
->bbio
!= NULL
)
1066 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1069 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1072 * For historical reasons, this function has many different cases in
1073 * ownership handling.
1076 /* If nothing has changed, do nothing */
1077 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1081 * If the two arguments are equal then one fewer reference is granted by the
1082 * caller than we want to take
1084 if (rbio
!= NULL
&& rbio
== wbio
)
1088 * If only the wbio is changed only adopt one reference.
1090 if (rbio
== SSL_get_rbio(s
)) {
1091 SSL_set0_wbio(s
, wbio
);
1095 * There is an asymmetry here for historical reasons. If only the rbio is
1096 * changed AND the rbio and wbio were originally different, then we only
1097 * adopt one reference.
1099 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1100 SSL_set0_rbio(s
, rbio
);
1104 /* Otherwise, adopt both references. */
1105 SSL_set0_rbio(s
, rbio
);
1106 SSL_set0_wbio(s
, wbio
);
1109 BIO
*SSL_get_rbio(const SSL
*s
)
1114 BIO
*SSL_get_wbio(const SSL
*s
)
1116 if (s
->bbio
!= NULL
) {
1118 * If |bbio| is active, the true caller-configured BIO is its
1121 return BIO_next(s
->bbio
);
1126 int SSL_get_fd(const SSL
*s
)
1128 return SSL_get_rfd(s
);
1131 int SSL_get_rfd(const SSL
*s
)
1136 b
= SSL_get_rbio(s
);
1137 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1139 BIO_get_fd(r
, &ret
);
1143 int SSL_get_wfd(const SSL
*s
)
1148 b
= SSL_get_wbio(s
);
1149 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1151 BIO_get_fd(r
, &ret
);
1155 #ifndef OPENSSL_NO_SOCK
1156 int SSL_set_fd(SSL
*s
, int fd
)
1161 bio
= BIO_new(BIO_s_socket());
1164 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1167 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1168 SSL_set_bio(s
, bio
, bio
);
1174 int SSL_set_wfd(SSL
*s
, int fd
)
1176 BIO
*rbio
= SSL_get_rbio(s
);
1178 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1179 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1180 BIO
*bio
= BIO_new(BIO_s_socket());
1183 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1186 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1187 SSL_set0_wbio(s
, bio
);
1190 SSL_set0_wbio(s
, rbio
);
1195 int SSL_set_rfd(SSL
*s
, int fd
)
1197 BIO
*wbio
= SSL_get_wbio(s
);
1199 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1200 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1201 BIO
*bio
= BIO_new(BIO_s_socket());
1204 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1207 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1208 SSL_set0_rbio(s
, bio
);
1211 SSL_set0_rbio(s
, wbio
);
1218 /* return length of latest Finished message we sent, copy to 'buf' */
1219 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1223 if (s
->s3
!= NULL
) {
1224 ret
= s
->s3
->tmp
.finish_md_len
;
1227 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1232 /* return length of latest Finished message we expected, copy to 'buf' */
1233 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1237 if (s
->s3
!= NULL
) {
1238 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1241 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1246 int SSL_get_verify_mode(const SSL
*s
)
1248 return (s
->verify_mode
);
1251 int SSL_get_verify_depth(const SSL
*s
)
1253 return X509_VERIFY_PARAM_get_depth(s
->param
);
1256 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1257 return (s
->verify_callback
);
1260 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1262 return (ctx
->verify_mode
);
1265 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1267 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1270 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1271 return (ctx
->default_verify_callback
);
1274 void SSL_set_verify(SSL
*s
, int mode
,
1275 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1277 s
->verify_mode
= mode
;
1278 if (callback
!= NULL
)
1279 s
->verify_callback
= callback
;
1282 void SSL_set_verify_depth(SSL
*s
, int depth
)
1284 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1287 void SSL_set_read_ahead(SSL
*s
, int yes
)
1289 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1292 int SSL_get_read_ahead(const SSL
*s
)
1294 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1297 int SSL_pending(const SSL
*s
)
1299 size_t pending
= s
->method
->ssl_pending(s
);
1302 * SSL_pending cannot work properly if read-ahead is enabled
1303 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1304 * impossible to fix since SSL_pending cannot report errors that may be
1305 * observed while scanning the new data. (Note that SSL_pending() is
1306 * often used as a boolean value, so we'd better not return -1.)
1308 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1309 * we just return INT_MAX.
1311 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1314 int SSL_has_pending(const SSL
*s
)
1317 * Similar to SSL_pending() but returns a 1 to indicate that we have
1318 * unprocessed data available or 0 otherwise (as opposed to the number of
1319 * bytes available). Unlike SSL_pending() this will take into account
1320 * read_ahead data. A 1 return simply indicates that we have unprocessed
1321 * data. That data may not result in any application data, or we may fail
1322 * to parse the records for some reason.
1324 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1327 return RECORD_LAYER_read_pending(&s
->rlayer
);
1330 X509
*SSL_get_peer_certificate(const SSL
*s
)
1334 if ((s
== NULL
) || (s
->session
== NULL
))
1337 r
= s
->session
->peer
;
1347 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1351 if ((s
== NULL
) || (s
->session
== NULL
))
1354 r
= s
->session
->peer_chain
;
1357 * If we are a client, cert_chain includes the peer's own certificate; if
1358 * we are a server, it does not.
1365 * Now in theory, since the calling process own 't' it should be safe to
1366 * modify. We need to be able to read f without being hassled
1368 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1371 /* Do we need to to SSL locking? */
1372 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1377 * what if we are setup for one protocol version but want to talk another
1379 if (t
->method
!= f
->method
) {
1380 t
->method
->ssl_free(t
);
1381 t
->method
= f
->method
;
1382 if (t
->method
->ssl_new(t
) == 0)
1386 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1387 ssl_cert_free(t
->cert
);
1389 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1396 /* Fix this so it checks all the valid key/cert options */
1397 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1399 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1400 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1403 if (ctx
->cert
->key
->privatekey
== NULL
) {
1404 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1407 return (X509_check_private_key
1408 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1411 /* Fix this function so that it takes an optional type parameter */
1412 int SSL_check_private_key(const SSL
*ssl
)
1415 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1418 if (ssl
->cert
->key
->x509
== NULL
) {
1419 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1422 if (ssl
->cert
->key
->privatekey
== NULL
) {
1423 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1426 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1427 ssl
->cert
->key
->privatekey
));
1430 int SSL_waiting_for_async(SSL
*s
)
1438 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1440 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1444 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1447 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1448 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1450 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1454 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1458 int SSL_accept(SSL
*s
)
1460 if (s
->handshake_func
== NULL
) {
1461 /* Not properly initialized yet */
1462 SSL_set_accept_state(s
);
1465 return SSL_do_handshake(s
);
1468 int SSL_connect(SSL
*s
)
1470 if (s
->handshake_func
== NULL
) {
1471 /* Not properly initialized yet */
1472 SSL_set_connect_state(s
);
1475 return SSL_do_handshake(s
);
1478 long SSL_get_default_timeout(const SSL
*s
)
1480 return (s
->method
->get_timeout());
1483 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1484 int (*func
) (void *))
1487 if (s
->waitctx
== NULL
) {
1488 s
->waitctx
= ASYNC_WAIT_CTX_new();
1489 if (s
->waitctx
== NULL
)
1492 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1493 sizeof(struct ssl_async_args
))) {
1495 s
->rwstate
= SSL_NOTHING
;
1496 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1499 s
->rwstate
= SSL_ASYNC_PAUSED
;
1502 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1508 s
->rwstate
= SSL_NOTHING
;
1509 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1510 /* Shouldn't happen */
1515 static int ssl_io_intern(void *vargs
)
1517 struct ssl_async_args
*args
;
1522 args
= (struct ssl_async_args
*)vargs
;
1526 switch (args
->type
) {
1528 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1530 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1532 return args
->f
.func_other(s
);
1537 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1539 if (s
->handshake_func
== NULL
) {
1540 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1544 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1545 s
->rwstate
= SSL_NOTHING
;
1549 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1550 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1551 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1555 * If we are a client and haven't received the ServerHello etc then we
1558 ossl_statem_check_finish_init(s
, 0);
1560 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1561 struct ssl_async_args args
;
1567 args
.type
= READFUNC
;
1568 args
.f
.func_read
= s
->method
->ssl_read
;
1570 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1571 *readbytes
= s
->asyncrw
;
1574 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1578 int SSL_read(SSL
*s
, void *buf
, int num
)
1584 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1588 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1591 * The cast is safe here because ret should be <= INT_MAX because num is
1595 ret
= (int)readbytes
;
1600 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1602 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1609 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1614 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1615 return SSL_READ_EARLY_DATA_ERROR
;
1618 switch (s
->early_data_state
) {
1619 case SSL_EARLY_DATA_NONE
:
1620 if (!SSL_in_before(s
)) {
1621 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1622 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1623 return SSL_READ_EARLY_DATA_ERROR
;
1627 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1628 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1629 ret
= SSL_accept(s
);
1632 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1633 return SSL_READ_EARLY_DATA_ERROR
;
1637 case SSL_EARLY_DATA_READ_RETRY
:
1638 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1639 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1640 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1642 * State machine will update early_data_state to
1643 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1646 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1647 != SSL_EARLY_DATA_FINISHED_READING
)) {
1648 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1649 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1650 : SSL_READ_EARLY_DATA_ERROR
;
1653 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1656 return SSL_READ_EARLY_DATA_FINISH
;
1659 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1660 return SSL_READ_EARLY_DATA_ERROR
;
1664 int SSL_get_early_data_status(const SSL
*s
)
1666 return s
->ext
.early_data
;
1669 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1671 if (s
->handshake_func
== NULL
) {
1672 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1676 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1679 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1680 struct ssl_async_args args
;
1686 args
.type
= READFUNC
;
1687 args
.f
.func_read
= s
->method
->ssl_peek
;
1689 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1690 *readbytes
= s
->asyncrw
;
1693 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1697 int SSL_peek(SSL
*s
, void *buf
, int num
)
1703 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1707 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1710 * The cast is safe here because ret should be <= INT_MAX because num is
1714 ret
= (int)readbytes
;
1720 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1722 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1729 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1731 if (s
->handshake_func
== NULL
) {
1732 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1736 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1737 s
->rwstate
= SSL_NOTHING
;
1738 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1742 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1743 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1744 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1745 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1748 /* If we are a client and haven't sent the Finished we better do that */
1749 ossl_statem_check_finish_init(s
, 1);
1751 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1753 struct ssl_async_args args
;
1756 args
.buf
= (void *)buf
;
1758 args
.type
= WRITEFUNC
;
1759 args
.f
.func_write
= s
->method
->ssl_write
;
1761 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1762 *written
= s
->asyncrw
;
1765 return s
->method
->ssl_write(s
, buf
, num
, written
);
1769 int SSL_write(SSL
*s
, const void *buf
, int num
)
1775 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1779 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1782 * The cast is safe here because ret should be <= INT_MAX because num is
1791 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1793 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1800 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1802 int ret
, early_data_state
;
1804 switch (s
->early_data_state
) {
1805 case SSL_EARLY_DATA_NONE
:
1807 || !SSL_in_before(s
)
1808 || s
->session
== NULL
1809 || s
->session
->ext
.max_early_data
== 0) {
1810 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1811 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1816 case SSL_EARLY_DATA_CONNECT_RETRY
:
1817 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1818 ret
= SSL_connect(s
);
1821 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1826 case SSL_EARLY_DATA_WRITE_RETRY
:
1827 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1828 ret
= SSL_write_ex(s
, buf
, num
, written
);
1829 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
1832 case SSL_EARLY_DATA_FINISHED_READING
:
1833 case SSL_EARLY_DATA_READ_RETRY
:
1834 early_data_state
= s
->early_data_state
;
1835 /* We are a server writing to an unauthenticated client */
1836 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
1837 ret
= SSL_write_ex(s
, buf
, num
, written
);
1838 s
->early_data_state
= early_data_state
;
1842 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1847 int SSL_shutdown(SSL
*s
)
1850 * Note that this function behaves differently from what one might
1851 * expect. Return values are 0 for no success (yet), 1 for success; but
1852 * calling it once is usually not enough, even if blocking I/O is used
1853 * (see ssl3_shutdown).
1856 if (s
->handshake_func
== NULL
) {
1857 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1861 if (!SSL_in_init(s
)) {
1862 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1863 struct ssl_async_args args
;
1866 args
.type
= OTHERFUNC
;
1867 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1869 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1871 return s
->method
->ssl_shutdown(s
);
1874 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1879 int SSL_key_update(SSL
*s
, int updatetype
)
1882 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
1883 * negotiated, and that it is appropriate to call SSL_key_update() instead
1884 * of SSL_renegotiate().
1886 if (!SSL_IS_TLS13(s
)) {
1887 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
1891 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
1892 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
1893 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
1897 if (!SSL_is_init_finished(s
)) {
1898 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
1902 ossl_statem_set_in_init(s
, 1);
1903 s
->key_update
= updatetype
;
1907 int SSL_get_key_update_type(SSL
*s
)
1909 return s
->key_update
;
1912 int SSL_renegotiate(SSL
*s
)
1914 if (SSL_IS_TLS13(s
)) {
1915 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
1919 if (s
->renegotiate
== 0)
1924 return (s
->method
->ssl_renegotiate(s
));
1927 int SSL_renegotiate_abbreviated(SSL
*s
)
1929 if (SSL_IS_TLS13(s
))
1932 if (s
->renegotiate
== 0)
1937 return (s
->method
->ssl_renegotiate(s
));
1940 int SSL_renegotiate_pending(SSL
*s
)
1943 * becomes true when negotiation is requested; false again once a
1944 * handshake has finished
1946 return (s
->renegotiate
!= 0);
1949 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1954 case SSL_CTRL_GET_READ_AHEAD
:
1955 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1956 case SSL_CTRL_SET_READ_AHEAD
:
1957 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1958 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1961 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1962 s
->msg_callback_arg
= parg
;
1966 return (s
->mode
|= larg
);
1967 case SSL_CTRL_CLEAR_MODE
:
1968 return (s
->mode
&= ~larg
);
1969 case SSL_CTRL_GET_MAX_CERT_LIST
:
1970 return (long)(s
->max_cert_list
);
1971 case SSL_CTRL_SET_MAX_CERT_LIST
:
1974 l
= (long)s
->max_cert_list
;
1975 s
->max_cert_list
= (size_t)larg
;
1977 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1978 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1980 s
->max_send_fragment
= larg
;
1981 if (s
->max_send_fragment
< s
->split_send_fragment
)
1982 s
->split_send_fragment
= s
->max_send_fragment
;
1984 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1985 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
1987 s
->split_send_fragment
= larg
;
1989 case SSL_CTRL_SET_MAX_PIPELINES
:
1990 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1992 s
->max_pipelines
= larg
;
1994 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
1996 case SSL_CTRL_GET_RI_SUPPORT
:
1998 return s
->s3
->send_connection_binding
;
2001 case SSL_CTRL_CERT_FLAGS
:
2002 return (s
->cert
->cert_flags
|= larg
);
2003 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2004 return (s
->cert
->cert_flags
&= ~larg
);
2006 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2008 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2010 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2011 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2013 return TLS_CIPHER_LEN
;
2015 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2016 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2018 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2022 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2023 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2024 &s
->min_proto_version
);
2025 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2026 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2027 &s
->max_proto_version
);
2029 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
2033 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2036 case SSL_CTRL_SET_MSG_CALLBACK
:
2037 s
->msg_callback
= (void (*)
2038 (int write_p
, int version
, int content_type
,
2039 const void *buf
, size_t len
, SSL
*ssl
,
2044 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
2048 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2050 return ctx
->sessions
;
2053 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2056 /* For some cases with ctx == NULL perform syntax checks */
2059 #ifndef OPENSSL_NO_EC
2060 case SSL_CTRL_SET_GROUPS_LIST
:
2061 return tls1_set_groups_list(NULL
, NULL
, parg
);
2063 case SSL_CTRL_SET_SIGALGS_LIST
:
2064 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2065 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2072 case SSL_CTRL_GET_READ_AHEAD
:
2073 return (ctx
->read_ahead
);
2074 case SSL_CTRL_SET_READ_AHEAD
:
2075 l
= ctx
->read_ahead
;
2076 ctx
->read_ahead
= larg
;
2079 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2080 ctx
->msg_callback_arg
= parg
;
2083 case SSL_CTRL_GET_MAX_CERT_LIST
:
2084 return (long)(ctx
->max_cert_list
);
2085 case SSL_CTRL_SET_MAX_CERT_LIST
:
2088 l
= (long)ctx
->max_cert_list
;
2089 ctx
->max_cert_list
= (size_t)larg
;
2092 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2095 l
= (long)ctx
->session_cache_size
;
2096 ctx
->session_cache_size
= (size_t)larg
;
2098 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2099 return (long)(ctx
->session_cache_size
);
2100 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2101 l
= ctx
->session_cache_mode
;
2102 ctx
->session_cache_mode
= larg
;
2104 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2105 return (ctx
->session_cache_mode
);
2107 case SSL_CTRL_SESS_NUMBER
:
2108 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
2109 case SSL_CTRL_SESS_CONNECT
:
2110 return (ctx
->stats
.sess_connect
);
2111 case SSL_CTRL_SESS_CONNECT_GOOD
:
2112 return (ctx
->stats
.sess_connect_good
);
2113 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2114 return (ctx
->stats
.sess_connect_renegotiate
);
2115 case SSL_CTRL_SESS_ACCEPT
:
2116 return (ctx
->stats
.sess_accept
);
2117 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2118 return (ctx
->stats
.sess_accept_good
);
2119 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2120 return (ctx
->stats
.sess_accept_renegotiate
);
2121 case SSL_CTRL_SESS_HIT
:
2122 return (ctx
->stats
.sess_hit
);
2123 case SSL_CTRL_SESS_CB_HIT
:
2124 return (ctx
->stats
.sess_cb_hit
);
2125 case SSL_CTRL_SESS_MISSES
:
2126 return (ctx
->stats
.sess_miss
);
2127 case SSL_CTRL_SESS_TIMEOUTS
:
2128 return (ctx
->stats
.sess_timeout
);
2129 case SSL_CTRL_SESS_CACHE_FULL
:
2130 return (ctx
->stats
.sess_cache_full
);
2132 return (ctx
->mode
|= larg
);
2133 case SSL_CTRL_CLEAR_MODE
:
2134 return (ctx
->mode
&= ~larg
);
2135 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2136 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2138 ctx
->max_send_fragment
= larg
;
2139 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2140 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2142 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2143 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2145 ctx
->split_send_fragment
= larg
;
2147 case SSL_CTRL_SET_MAX_PIPELINES
:
2148 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2150 ctx
->max_pipelines
= larg
;
2152 case SSL_CTRL_CERT_FLAGS
:
2153 return (ctx
->cert
->cert_flags
|= larg
);
2154 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2155 return (ctx
->cert
->cert_flags
&= ~larg
);
2156 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2157 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2158 &ctx
->min_proto_version
);
2159 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2160 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2161 &ctx
->max_proto_version
);
2163 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
2167 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2170 case SSL_CTRL_SET_MSG_CALLBACK
:
2171 ctx
->msg_callback
= (void (*)
2172 (int write_p
, int version
, int content_type
,
2173 const void *buf
, size_t len
, SSL
*ssl
,
2178 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
2182 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2191 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2192 const SSL_CIPHER
*const *bp
)
2194 if ((*ap
)->id
> (*bp
)->id
)
2196 if ((*ap
)->id
< (*bp
)->id
)
2201 /** return a STACK of the ciphers available for the SSL and in order of
2203 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2206 if (s
->cipher_list
!= NULL
) {
2207 return (s
->cipher_list
);
2208 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2209 return (s
->ctx
->cipher_list
);
2215 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2217 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2219 return s
->session
->ciphers
;
2222 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2224 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2226 ciphers
= SSL_get_ciphers(s
);
2229 ssl_set_client_disabled(s
);
2230 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2231 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2232 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
2234 sk
= sk_SSL_CIPHER_new_null();
2237 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2238 sk_SSL_CIPHER_free(sk
);
2246 /** return a STACK of the ciphers available for the SSL and in order of
2248 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2251 if (s
->cipher_list_by_id
!= NULL
) {
2252 return (s
->cipher_list_by_id
);
2253 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2254 return (s
->ctx
->cipher_list_by_id
);
2260 /** The old interface to get the same thing as SSL_get_ciphers() */
2261 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2263 const SSL_CIPHER
*c
;
2264 STACK_OF(SSL_CIPHER
) *sk
;
2268 sk
= SSL_get_ciphers(s
);
2269 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2271 c
= sk_SSL_CIPHER_value(sk
, n
);
2277 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2279 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2282 return ctx
->cipher_list
;
2286 /** specify the ciphers to be used by default by the SSL_CTX */
2287 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2289 STACK_OF(SSL_CIPHER
) *sk
;
2291 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2292 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2294 * ssl_create_cipher_list may return an empty stack if it was unable to
2295 * find a cipher matching the given rule string (for example if the rule
2296 * string specifies a cipher which has been disabled). This is not an
2297 * error as far as ssl_create_cipher_list is concerned, and hence
2298 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2302 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2303 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2309 /** specify the ciphers to be used by the SSL */
2310 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2312 STACK_OF(SSL_CIPHER
) *sk
;
2314 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2315 &s
->cipher_list_by_id
, str
, s
->cert
);
2316 /* see comment in SSL_CTX_set_cipher_list */
2319 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2320 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2326 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2329 STACK_OF(SSL_CIPHER
) *sk
;
2330 const SSL_CIPHER
*c
;
2333 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2337 sk
= s
->session
->ciphers
;
2339 if (sk_SSL_CIPHER_num(sk
) == 0)
2342 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2345 c
= sk_SSL_CIPHER_value(sk
, i
);
2346 n
= strlen(c
->name
);
2353 memcpy(p
, c
->name
, n
+ 1);
2362 /** return a servername extension value if provided in Client Hello, or NULL.
2363 * So far, only host_name types are defined (RFC 3546).
2366 const char *SSL_get_servername(const SSL
*s
, const int type
)
2368 if (type
!= TLSEXT_NAMETYPE_host_name
)
2371 return s
->session
&& !s
->ext
.hostname
?
2372 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2375 int SSL_get_servername_type(const SSL
*s
)
2378 && (!s
->ext
.hostname
? s
->session
->
2379 ext
.hostname
: s
->ext
.hostname
))
2380 return TLSEXT_NAMETYPE_host_name
;
2385 * SSL_select_next_proto implements the standard protocol selection. It is
2386 * expected that this function is called from the callback set by
2387 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2388 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2389 * not included in the length. A byte string of length 0 is invalid. No byte
2390 * string may be truncated. The current, but experimental algorithm for
2391 * selecting the protocol is: 1) If the server doesn't support NPN then this
2392 * is indicated to the callback. In this case, the client application has to
2393 * abort the connection or have a default application level protocol. 2) If
2394 * the server supports NPN, but advertises an empty list then the client
2395 * selects the first protocol in its list, but indicates via the API that this
2396 * fallback case was enacted. 3) Otherwise, the client finds the first
2397 * protocol in the server's list that it supports and selects this protocol.
2398 * This is because it's assumed that the server has better information about
2399 * which protocol a client should use. 4) If the client doesn't support any
2400 * of the server's advertised protocols, then this is treated the same as
2401 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2402 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2404 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2405 const unsigned char *server
,
2406 unsigned int server_len
,
2407 const unsigned char *client
, unsigned int client_len
)
2410 const unsigned char *result
;
2411 int status
= OPENSSL_NPN_UNSUPPORTED
;
2414 * For each protocol in server preference order, see if we support it.
2416 for (i
= 0; i
< server_len
;) {
2417 for (j
= 0; j
< client_len
;) {
2418 if (server
[i
] == client
[j
] &&
2419 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2420 /* We found a match */
2421 result
= &server
[i
];
2422 status
= OPENSSL_NPN_NEGOTIATED
;
2432 /* There's no overlap between our protocols and the server's list. */
2434 status
= OPENSSL_NPN_NO_OVERLAP
;
2437 *out
= (unsigned char *)result
+ 1;
2438 *outlen
= result
[0];
2442 #ifndef OPENSSL_NO_NEXTPROTONEG
2444 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2445 * client's requested protocol for this connection and returns 0. If the
2446 * client didn't request any protocol, then *data is set to NULL. Note that
2447 * the client can request any protocol it chooses. The value returned from
2448 * this function need not be a member of the list of supported protocols
2449 * provided by the callback.
2451 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2458 *len
= (unsigned int)s
->ext
.npn_len
;
2463 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2464 * a TLS server needs a list of supported protocols for Next Protocol
2465 * Negotiation. The returned list must be in wire format. The list is
2466 * returned by setting |out| to point to it and |outlen| to its length. This
2467 * memory will not be modified, but one should assume that the SSL* keeps a
2468 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2469 * wishes to advertise. Otherwise, no such extension will be included in the
2472 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2473 SSL_CTX_npn_advertised_cb_func cb
,
2476 ctx
->ext
.npn_advertised_cb
= cb
;
2477 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2481 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2482 * client needs to select a protocol from the server's provided list. |out|
2483 * must be set to point to the selected protocol (which may be within |in|).
2484 * The length of the protocol name must be written into |outlen|. The
2485 * server's advertised protocols are provided in |in| and |inlen|. The
2486 * callback can assume that |in| is syntactically valid. The client must
2487 * select a protocol. It is fatal to the connection if this callback returns
2488 * a value other than SSL_TLSEXT_ERR_OK.
2490 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2491 SSL_CTX_npn_select_cb_func cb
,
2494 ctx
->ext
.npn_select_cb
= cb
;
2495 ctx
->ext
.npn_select_cb_arg
= arg
;
2500 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2501 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2502 * length-prefixed strings). Returns 0 on success.
2504 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2505 unsigned int protos_len
)
2507 OPENSSL_free(ctx
->ext
.alpn
);
2508 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2509 if (ctx
->ext
.alpn
== NULL
) {
2510 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2513 ctx
->ext
.alpn_len
= protos_len
;
2519 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2520 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2521 * length-prefixed strings). Returns 0 on success.
2523 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2524 unsigned int protos_len
)
2526 OPENSSL_free(ssl
->ext
.alpn
);
2527 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2528 if (ssl
->ext
.alpn
== NULL
) {
2529 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2532 ssl
->ext
.alpn_len
= protos_len
;
2538 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2539 * called during ClientHello processing in order to select an ALPN protocol
2540 * from the client's list of offered protocols.
2542 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2543 SSL_CTX_alpn_select_cb_func cb
,
2546 ctx
->ext
.alpn_select_cb
= cb
;
2547 ctx
->ext
.alpn_select_cb_arg
= arg
;
2551 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2552 * On return it sets |*data| to point to |*len| bytes of protocol name
2553 * (not including the leading length-prefix byte). If the server didn't
2554 * respond with a negotiated protocol then |*len| will be zero.
2556 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2561 *data
= ssl
->s3
->alpn_selected
;
2565 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2568 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2569 const char *label
, size_t llen
,
2570 const unsigned char *p
, size_t plen
,
2573 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2576 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2581 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2583 const unsigned char *session_id
= a
->session_id
;
2585 unsigned char tmp_storage
[4];
2587 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2588 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2589 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2590 session_id
= tmp_storage
;
2594 ((unsigned long)session_id
[0]) |
2595 ((unsigned long)session_id
[1] << 8L) |
2596 ((unsigned long)session_id
[2] << 16L) |
2597 ((unsigned long)session_id
[3] << 24L);
2602 * NB: If this function (or indeed the hash function which uses a sort of
2603 * coarser function than this one) is changed, ensure
2604 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2605 * being able to construct an SSL_SESSION that will collide with any existing
2606 * session with a matching session ID.
2608 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2610 if (a
->ssl_version
!= b
->ssl_version
)
2612 if (a
->session_id_length
!= b
->session_id_length
)
2614 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2618 * These wrapper functions should remain rather than redeclaring
2619 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2620 * variable. The reason is that the functions aren't static, they're exposed
2624 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2626 SSL_CTX
*ret
= NULL
;
2629 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2633 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2636 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2637 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2640 ret
= OPENSSL_zalloc(sizeof(*ret
));
2645 ret
->min_proto_version
= 0;
2646 ret
->max_proto_version
= 0;
2647 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2648 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2649 /* We take the system default. */
2650 ret
->session_timeout
= meth
->get_timeout();
2651 ret
->references
= 1;
2652 ret
->lock
= CRYPTO_THREAD_lock_new();
2653 if (ret
->lock
== NULL
) {
2654 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2658 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2659 ret
->verify_mode
= SSL_VERIFY_NONE
;
2660 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2663 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2664 if (ret
->sessions
== NULL
)
2666 ret
->cert_store
= X509_STORE_new();
2667 if (ret
->cert_store
== NULL
)
2669 #ifndef OPENSSL_NO_CT
2670 ret
->ctlog_store
= CTLOG_STORE_new();
2671 if (ret
->ctlog_store
== NULL
)
2674 if (!ssl_create_cipher_list(ret
->method
,
2675 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2676 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2677 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2678 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2682 ret
->param
= X509_VERIFY_PARAM_new();
2683 if (ret
->param
== NULL
)
2686 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2687 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2690 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2691 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2695 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2698 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2701 /* No compression for DTLS */
2702 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2703 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2705 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2706 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2708 /* Setup RFC5077 ticket keys */
2709 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2710 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2711 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2712 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2713 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2714 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2715 ret
->options
|= SSL_OP_NO_TICKET
;
2717 #ifndef OPENSSL_NO_SRP
2718 if (!SSL_CTX_SRP_CTX_init(ret
))
2721 #ifndef OPENSSL_NO_ENGINE
2722 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2723 # define eng_strx(x) #x
2724 # define eng_str(x) eng_strx(x)
2725 /* Use specific client engine automatically... ignore errors */
2728 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2731 ENGINE_load_builtin_engines();
2732 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2734 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2740 * Default is to connect to non-RI servers. When RI is more widely
2741 * deployed might change this.
2743 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2745 * Disable compression by default to prevent CRIME. Applications can
2746 * re-enable compression by configuring
2747 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2748 * or by using the SSL_CONF library.
2750 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2752 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
2755 * Default max early data is a fully loaded single record. Could be split
2756 * across multiple records in practice
2758 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
2762 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2768 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
2772 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
2775 REF_PRINT_COUNT("SSL_CTX", ctx
);
2776 REF_ASSERT_ISNT(i
< 2);
2777 return ((i
> 1) ? 1 : 0);
2780 void SSL_CTX_free(SSL_CTX
*a
)
2787 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
2788 REF_PRINT_COUNT("SSL_CTX", a
);
2791 REF_ASSERT_ISNT(i
< 0);
2793 X509_VERIFY_PARAM_free(a
->param
);
2794 dane_ctx_final(&a
->dane
);
2797 * Free internal session cache. However: the remove_cb() may reference
2798 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2799 * after the sessions were flushed.
2800 * As the ex_data handling routines might also touch the session cache,
2801 * the most secure solution seems to be: empty (flush) the cache, then
2802 * free ex_data, then finally free the cache.
2803 * (See ticket [openssl.org #212].)
2805 if (a
->sessions
!= NULL
)
2806 SSL_CTX_flush_sessions(a
, 0);
2808 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2809 lh_SSL_SESSION_free(a
->sessions
);
2810 X509_STORE_free(a
->cert_store
);
2811 #ifndef OPENSSL_NO_CT
2812 CTLOG_STORE_free(a
->ctlog_store
);
2814 sk_SSL_CIPHER_free(a
->cipher_list
);
2815 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2816 ssl_cert_free(a
->cert
);
2817 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
2818 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2819 a
->comp_methods
= NULL
;
2820 #ifndef OPENSSL_NO_SRTP
2821 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2823 #ifndef OPENSSL_NO_SRP
2824 SSL_CTX_SRP_CTX_free(a
);
2826 #ifndef OPENSSL_NO_ENGINE
2827 ENGINE_finish(a
->client_cert_engine
);
2830 #ifndef OPENSSL_NO_EC
2831 OPENSSL_free(a
->ext
.ecpointformats
);
2832 OPENSSL_free(a
->ext
.supportedgroups
);
2834 OPENSSL_free(a
->ext
.alpn
);
2836 CRYPTO_THREAD_lock_free(a
->lock
);
2841 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2843 ctx
->default_passwd_callback
= cb
;
2846 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2848 ctx
->default_passwd_callback_userdata
= u
;
2851 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2853 return ctx
->default_passwd_callback
;
2856 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2858 return ctx
->default_passwd_callback_userdata
;
2861 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2863 s
->default_passwd_callback
= cb
;
2866 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2868 s
->default_passwd_callback_userdata
= u
;
2871 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2873 return s
->default_passwd_callback
;
2876 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2878 return s
->default_passwd_callback_userdata
;
2881 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2882 int (*cb
) (X509_STORE_CTX
*, void *),
2885 ctx
->app_verify_callback
= cb
;
2886 ctx
->app_verify_arg
= arg
;
2889 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2890 int (*cb
) (int, X509_STORE_CTX
*))
2892 ctx
->verify_mode
= mode
;
2893 ctx
->default_verify_callback
= cb
;
2896 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2898 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2901 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2903 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2906 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2908 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2911 void ssl_set_masks(SSL
*s
)
2914 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
2915 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
2916 unsigned long mask_k
, mask_a
;
2917 #ifndef OPENSSL_NO_EC
2918 int have_ecc_cert
, ecdsa_ok
;
2923 #ifndef OPENSSL_NO_DH
2924 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
2929 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
2930 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
2931 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
2932 #ifndef OPENSSL_NO_EC
2933 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
2939 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
2940 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
2943 #ifndef OPENSSL_NO_GOST
2944 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
2945 mask_k
|= SSL_kGOST
;
2946 mask_a
|= SSL_aGOST12
;
2948 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
2949 mask_k
|= SSL_kGOST
;
2950 mask_a
|= SSL_aGOST12
;
2952 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
2953 mask_k
|= SSL_kGOST
;
2954 mask_a
|= SSL_aGOST01
;
2964 if (rsa_enc
|| rsa_sign
) {
2972 mask_a
|= SSL_aNULL
;
2975 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2976 * depending on the key usage extension.
2978 #ifndef OPENSSL_NO_EC
2979 if (have_ecc_cert
) {
2981 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
2982 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2983 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2986 mask_a
|= SSL_aECDSA
;
2990 #ifndef OPENSSL_NO_EC
2991 mask_k
|= SSL_kECDHE
;
2994 #ifndef OPENSSL_NO_PSK
2997 if (mask_k
& SSL_kRSA
)
2998 mask_k
|= SSL_kRSAPSK
;
2999 if (mask_k
& SSL_kDHE
)
3000 mask_k
|= SSL_kDHEPSK
;
3001 if (mask_k
& SSL_kECDHE
)
3002 mask_k
|= SSL_kECDHEPSK
;
3005 s
->s3
->tmp
.mask_k
= mask_k
;
3006 s
->s3
->tmp
.mask_a
= mask_a
;
3009 #ifndef OPENSSL_NO_EC
3011 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3013 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3014 /* key usage, if present, must allow signing */
3015 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3016 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3017 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3021 return 1; /* all checks are ok */
3026 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3027 size_t *serverinfo_length
)
3029 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3030 *serverinfo_length
= 0;
3032 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3035 *serverinfo
= cpk
->serverinfo
;
3036 *serverinfo_length
= cpk
->serverinfo_length
;
3040 void ssl_update_cache(SSL
*s
, int mode
)
3045 * If the session_id_length is 0, we are not supposed to cache it, and it
3046 * would be rather hard to do anyway :-)
3048 if (s
->session
->session_id_length
== 0)
3051 i
= s
->session_ctx
->session_cache_mode
;
3052 if ((i
& mode
) && (!s
->hit
)
3053 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
3054 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3055 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
3056 SSL_SESSION_up_ref(s
->session
);
3057 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3058 SSL_SESSION_free(s
->session
);
3061 /* auto flush every 255 connections */
3062 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3063 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
3064 ? s
->session_ctx
->stats
.sess_connect_good
3065 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
3066 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3071 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3076 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3081 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3085 if (s
->method
!= meth
) {
3086 const SSL_METHOD
*sm
= s
->method
;
3087 int (*hf
) (SSL
*) = s
->handshake_func
;
3089 if (sm
->version
== meth
->version
)
3094 ret
= s
->method
->ssl_new(s
);
3097 if (hf
== sm
->ssl_connect
)
3098 s
->handshake_func
= meth
->ssl_connect
;
3099 else if (hf
== sm
->ssl_accept
)
3100 s
->handshake_func
= meth
->ssl_accept
;
3105 int SSL_get_error(const SSL
*s
, int i
)
3112 return (SSL_ERROR_NONE
);
3115 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3116 * where we do encode the error
3118 if ((l
= ERR_peek_error()) != 0) {
3119 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3120 return (SSL_ERROR_SYSCALL
);
3122 return (SSL_ERROR_SSL
);
3125 if (SSL_want_read(s
)) {
3126 bio
= SSL_get_rbio(s
);
3127 if (BIO_should_read(bio
))
3128 return (SSL_ERROR_WANT_READ
);
3129 else if (BIO_should_write(bio
))
3131 * This one doesn't make too much sense ... We never try to write
3132 * to the rbio, and an application program where rbio and wbio
3133 * are separate couldn't even know what it should wait for.
3134 * However if we ever set s->rwstate incorrectly (so that we have
3135 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3136 * wbio *are* the same, this test works around that bug; so it
3137 * might be safer to keep it.
3139 return (SSL_ERROR_WANT_WRITE
);
3140 else if (BIO_should_io_special(bio
)) {
3141 reason
= BIO_get_retry_reason(bio
);
3142 if (reason
== BIO_RR_CONNECT
)
3143 return (SSL_ERROR_WANT_CONNECT
);
3144 else if (reason
== BIO_RR_ACCEPT
)
3145 return (SSL_ERROR_WANT_ACCEPT
);
3147 return (SSL_ERROR_SYSCALL
); /* unknown */
3151 if (SSL_want_write(s
)) {
3152 /* Access wbio directly - in order to use the buffered bio if present */
3154 if (BIO_should_write(bio
))
3155 return (SSL_ERROR_WANT_WRITE
);
3156 else if (BIO_should_read(bio
))
3158 * See above (SSL_want_read(s) with BIO_should_write(bio))
3160 return (SSL_ERROR_WANT_READ
);
3161 else if (BIO_should_io_special(bio
)) {
3162 reason
= BIO_get_retry_reason(bio
);
3163 if (reason
== BIO_RR_CONNECT
)
3164 return (SSL_ERROR_WANT_CONNECT
);
3165 else if (reason
== BIO_RR_ACCEPT
)
3166 return (SSL_ERROR_WANT_ACCEPT
);
3168 return (SSL_ERROR_SYSCALL
);
3171 if (SSL_want_x509_lookup(s
))
3172 return (SSL_ERROR_WANT_X509_LOOKUP
);
3173 if (SSL_want_async(s
))
3174 return SSL_ERROR_WANT_ASYNC
;
3175 if (SSL_want_async_job(s
))
3176 return SSL_ERROR_WANT_ASYNC_JOB
;
3177 if (SSL_want_early(s
))
3178 return SSL_ERROR_WANT_EARLY
;
3180 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3181 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3182 return (SSL_ERROR_ZERO_RETURN
);
3184 return (SSL_ERROR_SYSCALL
);
3187 static int ssl_do_handshake_intern(void *vargs
)
3189 struct ssl_async_args
*args
;
3192 args
= (struct ssl_async_args
*)vargs
;
3195 return s
->handshake_func(s
);
3198 int SSL_do_handshake(SSL
*s
)
3202 if (s
->handshake_func
== NULL
) {
3203 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3207 ossl_statem_check_finish_init(s
, -1);
3209 s
->method
->ssl_renegotiate_check(s
, 0);
3211 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3212 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3213 struct ssl_async_args args
;
3217 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3219 ret
= s
->handshake_func(s
);
3225 void SSL_set_accept_state(SSL
*s
)
3229 ossl_statem_clear(s
);
3230 s
->handshake_func
= s
->method
->ssl_accept
;
3234 void SSL_set_connect_state(SSL
*s
)
3238 ossl_statem_clear(s
);
3239 s
->handshake_func
= s
->method
->ssl_connect
;
3243 int ssl_undefined_function(SSL
*s
)
3245 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3249 int ssl_undefined_void_function(void)
3251 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3252 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3256 int ssl_undefined_const_function(const SSL
*s
)
3261 const SSL_METHOD
*ssl_bad_method(int ver
)
3263 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3267 const char *ssl_protocol_to_string(int version
)
3271 case TLS1_3_VERSION
:
3274 case TLS1_2_VERSION
:
3277 case TLS1_1_VERSION
:
3292 case DTLS1_2_VERSION
:
3300 const char *SSL_get_version(const SSL
*s
)
3302 return ssl_protocol_to_string(s
->version
);
3305 SSL
*SSL_dup(SSL
*s
)
3307 STACK_OF(X509_NAME
) *sk
;
3312 /* If we're not quiescent, just up_ref! */
3313 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3314 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3319 * Otherwise, copy configuration state, and session if set.
3321 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3324 if (s
->session
!= NULL
) {
3326 * Arranges to share the same session via up_ref. This "copies"
3327 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3329 if (!SSL_copy_session_id(ret
, s
))
3333 * No session has been established yet, so we have to expect that
3334 * s->cert or ret->cert will be changed later -- they should not both
3335 * point to the same object, and thus we can't use
3336 * SSL_copy_session_id.
3338 if (!SSL_set_ssl_method(ret
, s
->method
))
3341 if (s
->cert
!= NULL
) {
3342 ssl_cert_free(ret
->cert
);
3343 ret
->cert
= ssl_cert_dup(s
->cert
);
3344 if (ret
->cert
== NULL
)
3348 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3349 (int)s
->sid_ctx_length
))
3353 if (!ssl_dane_dup(ret
, s
))
3355 ret
->version
= s
->version
;
3356 ret
->options
= s
->options
;
3357 ret
->mode
= s
->mode
;
3358 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3359 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3360 ret
->msg_callback
= s
->msg_callback
;
3361 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3362 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3363 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3364 ret
->generate_session_id
= s
->generate_session_id
;
3366 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3368 /* copy app data, a little dangerous perhaps */
3369 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3372 /* setup rbio, and wbio */
3373 if (s
->rbio
!= NULL
) {
3374 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3377 if (s
->wbio
!= NULL
) {
3378 if (s
->wbio
!= s
->rbio
) {
3379 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3382 BIO_up_ref(ret
->rbio
);
3383 ret
->wbio
= ret
->rbio
;
3387 ret
->server
= s
->server
;
3388 if (s
->handshake_func
) {
3390 SSL_set_accept_state(ret
);
3392 SSL_set_connect_state(ret
);
3394 ret
->shutdown
= s
->shutdown
;
3397 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3398 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3400 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3402 /* dup the cipher_list and cipher_list_by_id stacks */
3403 if (s
->cipher_list
!= NULL
) {
3404 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3407 if (s
->cipher_list_by_id
!= NULL
)
3408 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3412 /* Dup the client_CA list */
3413 if (s
->ca_names
!= NULL
) {
3414 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3417 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3418 xn
= sk_X509_NAME_value(sk
, i
);
3419 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3432 void ssl_clear_cipher_ctx(SSL
*s
)
3434 if (s
->enc_read_ctx
!= NULL
) {
3435 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3436 s
->enc_read_ctx
= NULL
;
3438 if (s
->enc_write_ctx
!= NULL
) {
3439 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3440 s
->enc_write_ctx
= NULL
;
3442 #ifndef OPENSSL_NO_COMP
3443 COMP_CTX_free(s
->expand
);
3445 COMP_CTX_free(s
->compress
);
3450 X509
*SSL_get_certificate(const SSL
*s
)
3452 if (s
->cert
!= NULL
)
3453 return (s
->cert
->key
->x509
);
3458 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3460 if (s
->cert
!= NULL
)
3461 return (s
->cert
->key
->privatekey
);
3466 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3468 if (ctx
->cert
!= NULL
)
3469 return ctx
->cert
->key
->x509
;
3474 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3476 if (ctx
->cert
!= NULL
)
3477 return ctx
->cert
->key
->privatekey
;
3482 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3484 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3485 return (s
->session
->cipher
);
3489 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3491 #ifndef OPENSSL_NO_COMP
3492 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3498 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3500 #ifndef OPENSSL_NO_COMP
3501 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3507 int ssl_init_wbio_buffer(SSL
*s
)
3511 if (s
->bbio
!= NULL
) {
3512 /* Already buffered. */
3516 bbio
= BIO_new(BIO_f_buffer());
3517 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3519 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3523 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3528 void ssl_free_wbio_buffer(SSL
*s
)
3530 /* callers ensure s is never null */
3531 if (s
->bbio
== NULL
)
3534 s
->wbio
= BIO_pop(s
->wbio
);
3535 assert(s
->wbio
!= NULL
);
3540 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3542 ctx
->quiet_shutdown
= mode
;
3545 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3547 return (ctx
->quiet_shutdown
);
3550 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3552 s
->quiet_shutdown
= mode
;
3555 int SSL_get_quiet_shutdown(const SSL
*s
)
3557 return (s
->quiet_shutdown
);
3560 void SSL_set_shutdown(SSL
*s
, int mode
)
3565 int SSL_get_shutdown(const SSL
*s
)
3570 int SSL_version(const SSL
*s
)
3575 int SSL_client_version(const SSL
*s
)
3577 return s
->client_version
;
3580 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3585 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3588 if (ssl
->ctx
== ctx
)
3591 ctx
= ssl
->session_ctx
;
3592 new_cert
= ssl_cert_dup(ctx
->cert
);
3593 if (new_cert
== NULL
) {
3596 ssl_cert_free(ssl
->cert
);
3597 ssl
->cert
= new_cert
;
3600 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3601 * so setter APIs must prevent invalid lengths from entering the system.
3603 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
3606 * If the session ID context matches that of the parent SSL_CTX,
3607 * inherit it from the new SSL_CTX as well. If however the context does
3608 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3609 * leave it unchanged.
3611 if ((ssl
->ctx
!= NULL
) &&
3612 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3613 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3614 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3615 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3618 SSL_CTX_up_ref(ctx
);
3619 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3625 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3627 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3630 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3632 X509_LOOKUP
*lookup
;
3634 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3637 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3639 /* Clear any errors if the default directory does not exist */
3645 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3647 X509_LOOKUP
*lookup
;
3649 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3653 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3655 /* Clear any errors if the default file does not exist */
3661 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3664 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3667 void SSL_set_info_callback(SSL
*ssl
,
3668 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3670 ssl
->info_callback
= cb
;
3674 * One compiler (Diab DCC) doesn't like argument names in returned function
3677 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3680 return ssl
->info_callback
;
3683 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3685 ssl
->verify_result
= arg
;
3688 long SSL_get_verify_result(const SSL
*ssl
)
3690 return (ssl
->verify_result
);
3693 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3696 return sizeof(ssl
->s3
->client_random
);
3697 if (outlen
> sizeof(ssl
->s3
->client_random
))
3698 outlen
= sizeof(ssl
->s3
->client_random
);
3699 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3703 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3706 return sizeof(ssl
->s3
->server_random
);
3707 if (outlen
> sizeof(ssl
->s3
->server_random
))
3708 outlen
= sizeof(ssl
->s3
->server_random
);
3709 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3713 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3714 unsigned char *out
, size_t outlen
)
3717 return session
->master_key_length
;
3718 if (outlen
> session
->master_key_length
)
3719 outlen
= session
->master_key_length
;
3720 memcpy(out
, session
->master_key
, outlen
);
3724 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3726 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3729 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3731 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3734 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3736 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3739 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3741 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3744 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3746 return (ctx
->cert_store
);
3749 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3751 X509_STORE_free(ctx
->cert_store
);
3752 ctx
->cert_store
= store
;
3755 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3758 X509_STORE_up_ref(store
);
3759 SSL_CTX_set_cert_store(ctx
, store
);
3762 int SSL_want(const SSL
*s
)
3764 return (s
->rwstate
);
3768 * \brief Set the callback for generating temporary DH keys.
3769 * \param ctx the SSL context.
3770 * \param dh the callback
3773 #ifndef OPENSSL_NO_DH
3774 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3775 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3778 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3781 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3784 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3788 #ifndef OPENSSL_NO_PSK
3789 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3791 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3792 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3795 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3796 if (identity_hint
!= NULL
) {
3797 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3798 if (ctx
->cert
->psk_identity_hint
== NULL
)
3801 ctx
->cert
->psk_identity_hint
= NULL
;
3805 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3810 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3811 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3814 OPENSSL_free(s
->cert
->psk_identity_hint
);
3815 if (identity_hint
!= NULL
) {
3816 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3817 if (s
->cert
->psk_identity_hint
== NULL
)
3820 s
->cert
->psk_identity_hint
= NULL
;
3824 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3826 if (s
== NULL
|| s
->session
== NULL
)
3828 return (s
->session
->psk_identity_hint
);
3831 const char *SSL_get_psk_identity(const SSL
*s
)
3833 if (s
== NULL
|| s
->session
== NULL
)
3835 return (s
->session
->psk_identity
);
3838 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
3840 s
->psk_client_callback
= cb
;
3843 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
3845 ctx
->psk_client_callback
= cb
;
3848 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
3850 s
->psk_server_callback
= cb
;
3853 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
3855 ctx
->psk_server_callback
= cb
;
3859 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3860 void (*cb
) (int write_p
, int version
,
3861 int content_type
, const void *buf
,
3862 size_t len
, SSL
*ssl
, void *arg
))
3864 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3867 void SSL_set_msg_callback(SSL
*ssl
,
3868 void (*cb
) (int write_p
, int version
,
3869 int content_type
, const void *buf
,
3870 size_t len
, SSL
*ssl
, void *arg
))
3872 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3875 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3876 int (*cb
) (SSL
*ssl
,
3880 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3881 (void (*)(void))cb
);
3884 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3885 int (*cb
) (SSL
*ssl
,
3886 int is_forward_secure
))
3888 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3889 (void (*)(void))cb
);
3893 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3894 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
3895 * If EVP_MD pointer is passed, initializes ctx with this |md|.
3896 * Returns the newly allocated ctx;
3899 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3901 ssl_clear_hash_ctx(hash
);
3902 *hash
= EVP_MD_CTX_new();
3903 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3904 EVP_MD_CTX_free(*hash
);
3911 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3914 EVP_MD_CTX_free(*hash
);
3918 /* Retrieve handshake hashes */
3919 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
3922 EVP_MD_CTX
*ctx
= NULL
;
3923 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
3924 int hashleni
= EVP_MD_CTX_size(hdgst
);
3927 if (hashleni
< 0 || (size_t)hashleni
> outlen
)
3930 ctx
= EVP_MD_CTX_new();
3934 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
3935 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
3938 *hashlen
= hashleni
;
3942 EVP_MD_CTX_free(ctx
);
3946 int SSL_session_reused(SSL
*s
)
3951 int SSL_is_server(SSL
*s
)
3956 #if OPENSSL_API_COMPAT < 0x10100000L
3957 void SSL_set_debug(SSL
*s
, int debug
)
3959 /* Old function was do-nothing anyway... */
3965 void SSL_set_security_level(SSL
*s
, int level
)
3967 s
->cert
->sec_level
= level
;
3970 int SSL_get_security_level(const SSL
*s
)
3972 return s
->cert
->sec_level
;
3975 void SSL_set_security_callback(SSL
*s
,
3976 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
3977 int op
, int bits
, int nid
,
3978 void *other
, void *ex
))
3980 s
->cert
->sec_cb
= cb
;
3983 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
3984 const SSL_CTX
*ctx
, int op
,
3985 int bits
, int nid
, void *other
,
3987 return s
->cert
->sec_cb
;
3990 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3992 s
->cert
->sec_ex
= ex
;
3995 void *SSL_get0_security_ex_data(const SSL
*s
)
3997 return s
->cert
->sec_ex
;
4000 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4002 ctx
->cert
->sec_level
= level
;
4005 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4007 return ctx
->cert
->sec_level
;
4010 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4011 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4012 int op
, int bits
, int nid
,
4013 void *other
, void *ex
))
4015 ctx
->cert
->sec_cb
= cb
;
4018 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4024 return ctx
->cert
->sec_cb
;
4027 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4029 ctx
->cert
->sec_ex
= ex
;
4032 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4034 return ctx
->cert
->sec_ex
;
4038 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4039 * can return unsigned long, instead of the generic long return value from the
4040 * control interface.
4042 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4044 return ctx
->options
;
4047 unsigned long SSL_get_options(const SSL
*s
)
4052 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4054 return ctx
->options
|= op
;
4057 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4059 return s
->options
|= op
;
4062 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4064 return ctx
->options
&= ~op
;
4067 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4069 return s
->options
&= ~op
;
4072 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4074 return s
->verified_chain
;
4077 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4079 #ifndef OPENSSL_NO_CT
4082 * Moves SCTs from the |src| stack to the |dst| stack.
4083 * The source of each SCT will be set to |origin|.
4084 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4086 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4088 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4089 sct_source_t origin
)
4095 *dst
= sk_SCT_new_null();
4097 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4102 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4103 if (SCT_set_source(sct
, origin
) != 1)
4106 if (sk_SCT_push(*dst
, sct
) <= 0)
4114 sk_SCT_push(src
, sct
); /* Put the SCT back */
4119 * Look for data collected during ServerHello and parse if found.
4120 * Returns the number of SCTs extracted.
4122 static int ct_extract_tls_extension_scts(SSL
*s
)
4124 int scts_extracted
= 0;
4126 if (s
->ext
.scts
!= NULL
) {
4127 const unsigned char *p
= s
->ext
.scts
;
4128 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4130 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4132 SCT_LIST_free(scts
);
4135 return scts_extracted
;
4139 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4140 * contains an SCT X509 extension. They will be stored in |s->scts|.
4142 * - The number of SCTs extracted, assuming an OCSP response exists.
4143 * - 0 if no OCSP response exists or it contains no SCTs.
4144 * - A negative integer if an error occurs.
4146 static int ct_extract_ocsp_response_scts(SSL
*s
)
4148 # ifndef OPENSSL_NO_OCSP
4149 int scts_extracted
= 0;
4150 const unsigned char *p
;
4151 OCSP_BASICRESP
*br
= NULL
;
4152 OCSP_RESPONSE
*rsp
= NULL
;
4153 STACK_OF(SCT
) *scts
= NULL
;
4156 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4159 p
= s
->ext
.ocsp
.resp
;
4160 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4164 br
= OCSP_response_get1_basic(rsp
);
4168 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4169 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4175 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4177 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4178 if (scts_extracted
< 0)
4182 SCT_LIST_free(scts
);
4183 OCSP_BASICRESP_free(br
);
4184 OCSP_RESPONSE_free(rsp
);
4185 return scts_extracted
;
4187 /* Behave as if no OCSP response exists */
4193 * Attempts to extract SCTs from the peer certificate.
4194 * Return the number of SCTs extracted, or a negative integer if an error
4197 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4199 int scts_extracted
= 0;
4200 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4203 STACK_OF(SCT
) *scts
=
4204 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4207 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4209 SCT_LIST_free(scts
);
4212 return scts_extracted
;
4216 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4217 * response (if it exists) and X509v3 extensions in the certificate.
4218 * Returns NULL if an error occurs.
4220 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4222 if (!s
->scts_parsed
) {
4223 if (ct_extract_tls_extension_scts(s
) < 0 ||
4224 ct_extract_ocsp_response_scts(s
) < 0 ||
4225 ct_extract_x509v3_extension_scts(s
) < 0)
4235 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4236 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4241 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4242 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4244 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4247 for (i
= 0; i
< count
; ++i
) {
4248 SCT
*sct
= sk_SCT_value(scts
, i
);
4249 int status
= SCT_get_validation_status(sct
);
4251 if (status
== SCT_VALIDATION_STATUS_VALID
)
4254 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4258 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4262 * Since code exists that uses the custom extension handler for CT, look
4263 * for this and throw an error if they have already registered to use CT.
4265 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4266 TLSEXT_TYPE_signed_certificate_timestamp
))
4268 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4269 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4273 if (callback
!= NULL
) {
4275 * If we are validating CT, then we MUST accept SCTs served via OCSP
4277 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4281 s
->ct_validation_callback
= callback
;
4282 s
->ct_validation_callback_arg
= arg
;
4287 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4288 ssl_ct_validation_cb callback
, void *arg
)
4291 * Since code exists that uses the custom extension handler for CT, look for
4292 * this and throw an error if they have already registered to use CT.
4294 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4295 TLSEXT_TYPE_signed_certificate_timestamp
))
4297 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4298 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4302 ctx
->ct_validation_callback
= callback
;
4303 ctx
->ct_validation_callback_arg
= arg
;
4307 int SSL_ct_is_enabled(const SSL
*s
)
4309 return s
->ct_validation_callback
!= NULL
;
4312 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4314 return ctx
->ct_validation_callback
!= NULL
;
4317 int ssl_validate_ct(SSL
*s
)
4320 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4322 SSL_DANE
*dane
= &s
->dane
;
4323 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4324 const STACK_OF(SCT
) *scts
;
4327 * If no callback is set, the peer is anonymous, or its chain is invalid,
4328 * skip SCT validation - just return success. Applications that continue
4329 * handshakes without certificates, with unverified chains, or pinned leaf
4330 * certificates are outside the scope of the WebPKI and CT.
4332 * The above exclusions notwithstanding the vast majority of peers will
4333 * have rather ordinary certificate chains validated by typical
4334 * applications that perform certificate verification and therefore will
4335 * process SCTs when enabled.
4337 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4338 s
->verify_result
!= X509_V_OK
||
4339 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4343 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4344 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4346 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4347 switch (dane
->mtlsa
->usage
) {
4348 case DANETLS_USAGE_DANE_TA
:
4349 case DANETLS_USAGE_DANE_EE
:
4354 ctx
= CT_POLICY_EVAL_CTX_new();
4356 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4360 issuer
= sk_X509_value(s
->verified_chain
, 1);
4361 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4362 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4363 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4364 CT_POLICY_EVAL_CTX_set_time(
4365 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4367 scts
= SSL_get0_peer_scts(s
);
4370 * This function returns success (> 0) only when all the SCTs are valid, 0
4371 * when some are invalid, and < 0 on various internal errors (out of
4372 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4373 * reason to abort the handshake, that decision is up to the callback.
4374 * Therefore, we error out only in the unexpected case that the return
4375 * value is negative.
4377 * XXX: One might well argue that the return value of this function is an
4378 * unfortunate design choice. Its job is only to determine the validation
4379 * status of each of the provided SCTs. So long as it correctly separates
4380 * the wheat from the chaff it should return success. Failure in this case
4381 * ought to correspond to an inability to carry out its duties.
4383 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4384 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4388 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4390 ret
= 0; /* This function returns 0 on failure */
4393 CT_POLICY_EVAL_CTX_free(ctx
);
4395 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4396 * failure return code here. Also the application may wish the complete
4397 * the handshake, and then disconnect cleanly at a higher layer, after
4398 * checking the verification status of the completed connection.
4400 * We therefore force a certificate verification failure which will be
4401 * visible via SSL_get_verify_result() and cached as part of any resumed
4404 * Note: the permissive callback is for information gathering only, always
4405 * returns success, and does not affect verification status. Only the
4406 * strict callback or a custom application-specified callback can trigger
4407 * connection failure or record a verification error.
4410 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4414 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4416 switch (validation_mode
) {
4418 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4420 case SSL_CT_VALIDATION_PERMISSIVE
:
4421 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4422 case SSL_CT_VALIDATION_STRICT
:
4423 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4427 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4429 switch (validation_mode
) {
4431 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4433 case SSL_CT_VALIDATION_PERMISSIVE
:
4434 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4435 case SSL_CT_VALIDATION_STRICT
:
4436 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4440 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4442 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4445 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4447 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4450 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4452 CTLOG_STORE_free(ctx
->ctlog_store
);
4453 ctx
->ctlog_store
= logs
;
4456 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4458 return ctx
->ctlog_store
;
4461 #endif /* OPENSSL_NO_CT */
4463 void SSL_CTX_set_early_cb(SSL_CTX
*c
, SSL_early_cb_fn cb
, void *arg
)
4466 c
->early_cb_arg
= arg
;
4469 int SSL_early_isv2(SSL
*s
)
4471 if (s
->clienthello
== NULL
)
4473 return s
->clienthello
->isv2
;
4476 unsigned int SSL_early_get0_legacy_version(SSL
*s
)
4478 if (s
->clienthello
== NULL
)
4480 return s
->clienthello
->legacy_version
;
4483 size_t SSL_early_get0_random(SSL
*s
, const unsigned char **out
)
4485 if (s
->clienthello
== NULL
)
4488 *out
= s
->clienthello
->random
;
4489 return SSL3_RANDOM_SIZE
;
4492 size_t SSL_early_get0_session_id(SSL
*s
, const unsigned char **out
)
4494 if (s
->clienthello
== NULL
)
4497 *out
= s
->clienthello
->session_id
;
4498 return s
->clienthello
->session_id_len
;
4501 size_t SSL_early_get0_ciphers(SSL
*s
, const unsigned char **out
)
4503 if (s
->clienthello
== NULL
)
4506 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4507 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4510 size_t SSL_early_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4512 if (s
->clienthello
== NULL
)
4515 *out
= s
->clienthello
->compressions
;
4516 return s
->clienthello
->compressions_len
;
4519 int SSL_early_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4525 if (s
->clienthello
== NULL
)
4527 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4528 r
= s
->clienthello
->pre_proc_exts
+ i
;
4529 if (r
->present
&& r
->type
== type
) {
4531 *out
= PACKET_data(&r
->data
);
4533 *outlen
= PACKET_remaining(&r
->data
);
4540 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4542 ctx
->keylog_callback
= cb
;
4545 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4547 return ctx
->keylog_callback
;
4550 static int nss_keylog_int(const char *prefix
,
4552 const uint8_t *parameter_1
,
4553 size_t parameter_1_len
,
4554 const uint8_t *parameter_2
,
4555 size_t parameter_2_len
)
4558 char *cursor
= NULL
;
4563 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
4566 * Our output buffer will contain the following strings, rendered with
4567 * space characters in between, terminated by a NULL character: first the
4568 * prefix, then the first parameter, then the second parameter. The
4569 * meaning of each parameter depends on the specific key material being
4570 * logged. Note that the first and second parameters are encoded in
4571 * hexadecimal, so we need a buffer that is twice their lengths.
4573 prefix_len
= strlen(prefix
);
4574 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
4575 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
4576 SSLerr(SSL_F_NSS_KEYLOG_INT
, ERR_R_MALLOC_FAILURE
);
4580 strcpy(cursor
, prefix
);
4581 cursor
+= prefix_len
;
4584 for (i
= 0; i
< parameter_1_len
; i
++) {
4585 sprintf(cursor
, "%02x", parameter_1
[i
]);
4590 for (i
= 0; i
< parameter_2_len
; i
++) {
4591 sprintf(cursor
, "%02x", parameter_2
[i
]);
4596 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
4602 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
4603 const uint8_t *encrypted_premaster
,
4604 size_t encrypted_premaster_len
,
4605 const uint8_t *premaster
,
4606 size_t premaster_len
)
4608 if (encrypted_premaster_len
< 8) {
4609 SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
4613 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
4614 return nss_keylog_int("RSA",
4616 encrypted_premaster
,
4622 int ssl_log_secret(SSL
*ssl
,
4624 const uint8_t *secret
,
4627 return nss_keylog_int(label
,
4629 ssl
->s3
->client_random
,
4635 #define SSLV2_CIPHER_LEN 3
4637 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
,
4642 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4644 if (PACKET_remaining(cipher_suites
) == 0) {
4645 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4646 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4650 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4651 SSLerr(SSL_F_SSL_CACHE_CIPHERLIST
,
4652 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4653 *al
= SSL_AD_DECODE_ERROR
;
4657 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4658 s
->s3
->tmp
.ciphers_raw
= NULL
;
4659 s
->s3
->tmp
.ciphers_rawlen
= 0;
4662 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
4663 PACKET sslv2ciphers
= *cipher_suites
;
4664 unsigned int leadbyte
;
4668 * We store the raw ciphers list in SSLv3+ format so we need to do some
4669 * preprocessing to convert the list first. If there are any SSLv2 only
4670 * ciphersuites with a non-zero leading byte then we are going to
4671 * slightly over allocate because we won't store those. But that isn't a
4674 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
4675 s
->s3
->tmp
.ciphers_raw
= raw
;
4677 *al
= SSL_AD_INTERNAL_ERROR
;
4680 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
4681 PACKET_remaining(&sslv2ciphers
) > 0;
4682 raw
+= TLS_CIPHER_LEN
) {
4683 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
4685 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
4688 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
4689 *al
= SSL_AD_INTERNAL_ERROR
;
4690 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
4691 s
->s3
->tmp
.ciphers_raw
= NULL
;
4692 s
->s3
->tmp
.ciphers_rawlen
= 0;
4696 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
4698 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
4699 &s
->s3
->tmp
.ciphers_rawlen
)) {
4700 *al
= SSL_AD_INTERNAL_ERROR
;
4708 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
4709 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
4710 STACK_OF(SSL_CIPHER
) **scsvs
)
4715 if (!PACKET_buf_init(&pkt
, bytes
, len
))
4717 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, &alert
);
4720 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
4721 STACK_OF(SSL_CIPHER
) **skp
,
4722 STACK_OF(SSL_CIPHER
) **scsvs_out
,
4723 int sslv2format
, int *al
)
4725 const SSL_CIPHER
*c
;
4726 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
4727 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
4729 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
4730 unsigned char cipher
[SSLV2_CIPHER_LEN
];
4732 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
4734 if (PACKET_remaining(cipher_suites
) == 0) {
4735 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
4736 *al
= SSL_AD_ILLEGAL_PARAMETER
;
4740 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
4741 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
4742 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
4743 *al
= SSL_AD_DECODE_ERROR
;
4747 sk
= sk_SSL_CIPHER_new_null();
4748 scsvs
= sk_SSL_CIPHER_new_null();
4749 if (sk
== NULL
|| scsvs
== NULL
) {
4750 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
4751 *al
= SSL_AD_INTERNAL_ERROR
;
4755 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
4757 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
4758 * first byte set to zero, while true SSLv2 ciphers have a non-zero
4759 * first byte. We don't support any true SSLv2 ciphers, so skip them.
4761 if (sslv2format
&& cipher
[0] != '\0')
4764 /* For SSLv2-compat, ignore leading 0-byte. */
4765 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
4767 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
4768 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
4769 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
4770 *al
= SSL_AD_INTERNAL_ERROR
;
4775 if (PACKET_remaining(cipher_suites
) > 0) {
4776 *al
= SSL_AD_INTERNAL_ERROR
;
4777 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_INTERNAL_ERROR
);
4784 sk_SSL_CIPHER_free(sk
);
4785 if (scsvs_out
!= NULL
)
4788 sk_SSL_CIPHER_free(scsvs
);
4791 sk_SSL_CIPHER_free(sk
);
4792 sk_SSL_CIPHER_free(scsvs
);
4796 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
4798 ctx
->max_early_data
= max_early_data
;
4803 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
4805 return ctx
->max_early_data
;
4808 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
4810 s
->max_early_data
= max_early_data
;
4815 uint32_t SSL_get_max_early_data(const SSL
*s
)
4817 return s
->max_early_data
;