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(ilen);
322 if (t->data == NULL) {
324 SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE);
327 memcpy(t->data, data, ilen);
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, dlen) || 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, dlen) || 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 /* Reset DANE verification result state */
477 X509_free(s->dane.mcert);
478 s->dane.mcert = NULL;
479 s->dane.mtlsa = NULL;
481 /* Clear the verification result peername */
482 X509_VERIFY_PARAM_move_peername(s->param, NULL);
485 * Check to see if we were changed into a different method, if so, revert
486 * back if we are not doing session-id reuse.
488 if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
489 && (s->method != s->ctx->method)) {
490 s->method->ssl_free(s);
491 s->method = s->ctx->method;
492 if (!s->method->ssl_new(s))
495 s->method->ssl_clear(s);
497 RECORD_LAYER_clear(&s->rlayer);
502 /** Used to change an SSL_CTXs default SSL method type */
503 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
505 STACK_OF(SSL_CIPHER) *sk;
509 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
510 &(ctx->cipher_list_by_id),
511 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
512 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
513 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
519 SSL *SSL_new(SSL_CTX *ctx)
524 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
527 if (ctx->method == NULL) {
528 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
532 s = OPENSSL_zalloc(sizeof(*s));
536 s->lock = CRYPTO_THREAD_lock_new();
537 if (s->lock == NULL) {
538 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
543 RECORD_LAYER_init(&s->rlayer, s);
545 s->options = ctx->options;
546 s->dane.flags = ctx->dane.flags;
547 s->min_proto_version = ctx->min_proto_version;
548 s->max_proto_version = ctx->max_proto_version;
550 s->max_cert_list = ctx->max_cert_list;
554 * Earlier library versions used to copy the pointer to the CERT, not
555 * its contents; only when setting new parameters for the per-SSL
556 * copy, ssl_cert_new would be called (and the direct reference to
557 * the per-SSL_CTX settings would be lost, but those still were
558 * indirectly accessed for various purposes, and for that reason they
559 * used to be known as s->ctx->default_cert). Now we don't look at the
560 * SSL_CTX's CERT after having duplicated it once.
562 s->cert = ssl_cert_dup(ctx->cert);
566 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
567 s->msg_callback = ctx->msg_callback;
568 s->msg_callback_arg = ctx->msg_callback_arg;
569 s->verify_mode = ctx->verify_mode;
570 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
571 s->sid_ctx_length = ctx->sid_ctx_length;
572 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
573 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
574 s->verify_callback = ctx->default_verify_callback;
575 s->generate_session_id = ctx->generate_session_id;
577 s->param = X509_VERIFY_PARAM_new();
578 if (s->param == NULL)
580 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
581 s->quiet_shutdown = ctx->quiet_shutdown;
582 s->max_send_fragment = ctx->max_send_fragment;
583 s->split_send_fragment = ctx->split_send_fragment;
584 s->max_pipelines = ctx->max_pipelines;
585 if (s->max_pipelines > 1)
586 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
587 if (ctx->default_read_buf_len > 0)
588 SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);
592 s->tlsext_debug_cb = 0;
593 s->tlsext_debug_arg = NULL;
594 s->tlsext_ticket_expected = 0;
595 s->tlsext_status_type = ctx->tlsext_status_type;
596 s->tlsext_status_expected = 0;
597 s->tlsext_ocsp_ids = NULL;
598 s->tlsext_ocsp_exts = NULL;
599 s->tlsext_ocsp_resp = NULL;
600 s->tlsext_ocsp_resplen = 0;
602 s->initial_ctx = ctx;
603 #ifndef OPENSSL_NO_EC
604 if (ctx->tlsext_ecpointformatlist) {
605 s->tlsext_ecpointformatlist =
606 OPENSSL_memdup(ctx->tlsext_ecpointformatlist,
607 ctx->tlsext_ecpointformatlist_length);
608 if (!s->tlsext_ecpointformatlist)
610 s->tlsext_ecpointformatlist_length =
611 ctx->tlsext_ecpointformatlist_length;
613 if (ctx->tlsext_ellipticcurvelist) {
614 s->tlsext_ellipticcurvelist =
615 OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,
616 ctx->tlsext_ellipticcurvelist_length);
617 if (!s->tlsext_ellipticcurvelist)
619 s->tlsext_ellipticcurvelist_length =
620 ctx->tlsext_ellipticcurvelist_length;
623 #ifndef OPENSSL_NO_NEXTPROTONEG
624 s->next_proto_negotiated = NULL;
627 if (s->ctx->alpn_client_proto_list) {
628 s->alpn_client_proto_list =
629 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
630 if (s->alpn_client_proto_list == NULL)
632 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
633 s->ctx->alpn_client_proto_list_len);
634 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_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 if (!s->method->ssl_new(s))
648 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
653 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))
656 #ifndef OPENSSL_NO_PSK
657 s->psk_client_callback = ctx->psk_client_callback;
658 s->psk_server_callback = ctx->psk_server_callback;
663 #ifndef OPENSSL_NO_CT
664 if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,
665 ctx->ct_validation_callback_arg))
672 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
676 int SSL_is_dtls(const SSL *s)
678 return SSL_IS_DTLS(s) ? 1 : 0;
681 int SSL_up_ref(SSL *s)
685 if (CRYPTO_atomic_add(&s->references, 1, &i, s->lock) <= 0)
688 REF_PRINT_COUNT("SSL", s);
689 REF_ASSERT_ISNT(i < 2);
690 return ((i > 1) ? 1 : 0);
693 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
694 unsigned int sid_ctx_len)
696 if (sid_ctx_len > sizeof ctx->sid_ctx) {
697 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
698 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
701 ctx->sid_ctx_length = sid_ctx_len;
702 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
707 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
708 unsigned int sid_ctx_len)
710 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
711 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
712 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
715 ssl->sid_ctx_length = sid_ctx_len;
716 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
721 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
723 CRYPTO_THREAD_write_lock(ctx->lock);
724 ctx->generate_session_id = cb;
725 CRYPTO_THREAD_unlock(ctx->lock);
729 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
731 CRYPTO_THREAD_write_lock(ssl->lock);
732 ssl->generate_session_id = cb;
733 CRYPTO_THREAD_unlock(ssl->lock);
737 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
741 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
742 * we can "construct" a session to give us the desired check - ie. to
743 * find if there's a session in the hash table that would conflict with
744 * any new session built out of this id/id_len and the ssl_version in use
749 if (id_len > sizeof r.session_id)
752 r.ssl_version = ssl->version;
753 r.session_id_length = id_len;
754 memcpy(r.session_id, id, id_len);
756 CRYPTO_THREAD_read_lock(ssl->session_ctx->lock);
757 p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r);
758 CRYPTO_THREAD_unlock(ssl->session_ctx->lock);
762 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
764 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
767 int SSL_set_purpose(SSL *s, int purpose)
769 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
772 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
774 return X509_VERIFY_PARAM_set_trust(s->param, trust);
777 int SSL_set_trust(SSL *s, int trust)
779 return X509_VERIFY_PARAM_set_trust(s->param, trust);
782 int SSL_set1_host(SSL *s, const char *hostname)
784 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
787 int SSL_add1_host(SSL *s, const char *hostname)
789 return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0);
792 void SSL_set_hostflags(SSL *s, unsigned int flags)
794 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
797 const char *SSL_get0_peername(SSL *s)
799 return X509_VERIFY_PARAM_get0_peername(s->param);
802 int SSL_CTX_dane_enable(SSL_CTX *ctx)
804 return dane_ctx_enable(&ctx->dane);
807 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
809 unsigned long orig = ctx->dane.flags;
811 ctx->dane.flags |= flags;
815 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
817 unsigned long orig = ctx->dane.flags;
819 ctx->dane.flags &= ~flags;
823 int SSL_dane_enable(SSL *s, const char *basedomain)
825 SSL_DANE *dane = &s->dane;
827 if (s->ctx->dane.mdmax == 0) {
828 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED);
831 if (dane->trecs != NULL) {
832 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED);
837 * Default SNI name. This rejects empty names, while set1_host below
838 * accepts them and disables host name checks. To avoid side-effects with
839 * invalid input, set the SNI name first.
841 if (s->tlsext_hostname == NULL) {
842 if (!SSL_set_tlsext_host_name(s, basedomain)) {
843 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
848 /* Primary RFC6125 reference identifier */
849 if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) {
850 SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
856 dane->dctx = &s->ctx->dane;
857 dane->trecs = sk_danetls_record_new_null();
859 if (dane->trecs == NULL) {
860 SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE);
866 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
868 unsigned long orig = ssl->dane.flags;
870 ssl->dane.flags |= flags;
874 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
876 unsigned long orig = ssl->dane.flags;
878 ssl->dane.flags &= ~flags;
882 int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
884 SSL_DANE *dane = &s->dane;
886 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
890 *mcert = dane->mcert;
892 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
897 int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
898 uint8_t *mtype, unsigned const char **data, size_t *dlen)
900 SSL_DANE *dane = &s->dane;
902 if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK)
906 *usage = dane->mtlsa->usage;
908 *selector = dane->mtlsa->selector;
910 *mtype = dane->mtlsa->mtype;
912 *data = dane->mtlsa->data;
914 *dlen = dane->mtlsa->dlen;
919 SSL_DANE *SSL_get0_dane(SSL *s)
924 int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
925 uint8_t mtype, unsigned char *data, size_t dlen)
927 return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen);
930 int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
933 return dane_mtype_set(&ctx->dane, md, mtype, ord);
936 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
938 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
941 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
943 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
946 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
951 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
956 void SSL_certs_clear(SSL *s)
958 ssl_cert_clear_certs(s->cert);
961 void SSL_free(SSL *s)
968 CRYPTO_atomic_add(&s->references, -1, &i, s->lock);
969 REF_PRINT_COUNT("SSL", s);
972 REF_ASSERT_ISNT(i < 0);
974 X509_VERIFY_PARAM_free(s->param);
975 dane_final(&s->dane);
976 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
978 ssl_free_wbio_buffer(s);
980 BIO_free_all(s->wbio);
981 BIO_free_all(s->rbio);
983 BUF_MEM_free(s->init_buf);
985 /* add extra stuff */
986 sk_SSL_CIPHER_free(s->cipher_list);
987 sk_SSL_CIPHER_free(s->cipher_list_by_id);
989 /* Make the next call work :-) */
990 if (s->session != NULL) {
991 ssl_clear_bad_session(s);
992 SSL_SESSION_free(s->session);
997 ssl_cert_free(s->cert);
998 /* Free up if allocated */
1000 OPENSSL_free(s->tlsext_hostname);
1001 SSL_CTX_free(s->initial_ctx);
1002 #ifndef OPENSSL_NO_EC
1003 OPENSSL_free(s->tlsext_ecpointformatlist);
1004 OPENSSL_free(s->tlsext_ellipticcurvelist);
1005 #endif /* OPENSSL_NO_EC */
1006 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
1007 #ifndef OPENSSL_NO_OCSP
1008 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
1010 #ifndef OPENSSL_NO_CT
1011 SCT_LIST_free(s->scts);
1012 OPENSSL_free(s->tlsext_scts);
1014 OPENSSL_free(s->tlsext_ocsp_resp);
1015 OPENSSL_free(s->alpn_client_proto_list);
1017 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
1019 sk_X509_pop_free(s->verified_chain, X509_free);
1021 if (s->method != NULL)
1022 s->method->ssl_free(s);
1024 RECORD_LAYER_release(&s->rlayer);
1026 SSL_CTX_free(s->ctx);
1028 ASYNC_WAIT_CTX_free(s->waitctx);
1030 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1031 OPENSSL_free(s->next_proto_negotiated);
1034 #ifndef OPENSSL_NO_SRTP
1035 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1038 CRYPTO_THREAD_lock_free(s->lock);
1043 void SSL_set0_rbio(SSL *s, BIO *rbio)
1045 BIO_free_all(s->rbio);
1049 void SSL_set0_wbio(SSL *s, BIO *wbio)
1052 * If the output buffering BIO is still in place, remove it
1054 if (s->bbio != NULL)
1055 s->wbio = BIO_pop(s->wbio);
1057 BIO_free_all(s->wbio);
1060 /* Re-attach |bbio| to the new |wbio|. */
1061 if (s->bbio != NULL)
1062 s->wbio = BIO_push(s->bbio, s->wbio);
1065 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1068 * For historical reasons, this function has many different cases in
1069 * ownership handling.
1072 /* If nothing has changed, do nothing */
1073 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1077 * If the two arguments are equal then one fewer reference is granted by the
1078 * caller than we want to take
1080 if (rbio != NULL && rbio == wbio)
1084 * If only the wbio is changed only adopt one reference.
1086 if (rbio == SSL_get_rbio(s)) {
1087 SSL_set0_wbio(s, wbio);
1091 * There is an asymmetry here for historical reasons. If only the rbio is
1092 * changed AND the rbio and wbio were originally different, then we only
1093 * adopt one reference.
1095 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1096 SSL_set0_rbio(s, rbio);
1100 /* Otherwise, adopt both references. */
1101 SSL_set0_rbio(s, rbio);
1102 SSL_set0_wbio(s, wbio);
1105 BIO *SSL_get_rbio(const SSL *s)
1110 BIO *SSL_get_wbio(const SSL *s)
1112 if (s->bbio != NULL) {
1114 * If |bbio| is active, the true caller-configured BIO is its
1117 return BIO_next(s->bbio);
1122 int SSL_get_fd(const SSL *s)
1124 return SSL_get_rfd(s);
1127 int SSL_get_rfd(const SSL *s)
1132 b = SSL_get_rbio(s);
1133 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1135 BIO_get_fd(r, &ret);
1139 int SSL_get_wfd(const SSL *s)
1144 b = SSL_get_wbio(s);
1145 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1147 BIO_get_fd(r, &ret);
1151 #ifndef OPENSSL_NO_SOCK
1152 int SSL_set_fd(SSL *s, int fd)
1157 bio = BIO_new(BIO_s_socket());
1160 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
1163 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1164 SSL_set_bio(s, bio, bio);
1170 int SSL_set_wfd(SSL *s, int fd)
1172 BIO *rbio = SSL_get_rbio(s);
1174 if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET
1175 || (int)BIO_get_fd(rbio, NULL) != fd) {
1176 BIO *bio = BIO_new(BIO_s_socket());
1179 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
1182 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1183 SSL_set0_wbio(s, bio);
1186 SSL_set0_wbio(s, rbio);
1191 int SSL_set_rfd(SSL *s, int fd)
1193 BIO *wbio = SSL_get_wbio(s);
1195 if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET
1196 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1197 BIO *bio = BIO_new(BIO_s_socket());
1200 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
1203 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1204 SSL_set0_rbio(s, bio);
1207 SSL_set0_rbio(s, wbio);
1214 /* return length of latest Finished message we sent, copy to 'buf' */
1215 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1219 if (s->s3 != NULL) {
1220 ret = s->s3->tmp.finish_md_len;
1223 memcpy(buf, s->s3->tmp.finish_md, count);
1228 /* return length of latest Finished message we expected, copy to 'buf' */
1229 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1233 if (s->s3 != NULL) {
1234 ret = s->s3->tmp.peer_finish_md_len;
1237 memcpy(buf, s->s3->tmp.peer_finish_md, count);
1242 int SSL_get_verify_mode(const SSL *s)
1244 return (s->verify_mode);
1247 int SSL_get_verify_depth(const SSL *s)
1249 return X509_VERIFY_PARAM_get_depth(s->param);
1252 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1253 return (s->verify_callback);
1256 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1258 return (ctx->verify_mode);
1261 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1263 return X509_VERIFY_PARAM_get_depth(ctx->param);
1266 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1267 return (ctx->default_verify_callback);
1270 void SSL_set_verify(SSL *s, int mode,
1271 int (*callback) (int ok, X509_STORE_CTX *ctx))
1273 s->verify_mode = mode;
1274 if (callback != NULL)
1275 s->verify_callback = callback;
1278 void SSL_set_verify_depth(SSL *s, int depth)
1280 X509_VERIFY_PARAM_set_depth(s->param, depth);
1283 void SSL_set_read_ahead(SSL *s, int yes)
1285 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
1288 int SSL_get_read_ahead(const SSL *s)
1290 return RECORD_LAYER_get_read_ahead(&s->rlayer);
1293 int SSL_pending(const SSL *s)
1295 size_t pending = s->method->ssl_pending(s);
1298 * SSL_pending cannot work properly if read-ahead is enabled
1299 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1300 * impossible to fix since SSL_pending cannot report errors that may be
1301 * observed while scanning the new data. (Note that SSL_pending() is
1302 * often used as a boolean value, so we'd better not return -1.)
1304 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1305 * we just return INT_MAX.
1307 return pending < INT_MAX ? pending : INT_MAX;
1310 int SSL_has_pending(const SSL *s)
1313 * Similar to SSL_pending() but returns a 1 to indicate that we have
1314 * unprocessed data available or 0 otherwise (as opposed to the number of
1315 * bytes available). Unlike SSL_pending() this will take into account
1316 * read_ahead data. A 1 return simply indicates that we have unprocessed
1317 * data. That data may not result in any application data, or we may fail
1318 * to parse the records for some reason.
1323 return RECORD_LAYER_read_pending(&s->rlayer);
1326 X509 *SSL_get_peer_certificate(const SSL *s)
1330 if ((s == NULL) || (s->session == NULL))
1333 r = s->session->peer;
1343 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1347 if ((s == NULL) || (s->session == NULL))
1350 r = s->session->peer_chain;
1353 * If we are a client, cert_chain includes the peer's own certificate; if
1354 * we are a server, it does not.
1361 * Now in theory, since the calling process own 't' it should be safe to
1362 * modify. We need to be able to read f without being hassled
1364 int SSL_copy_session_id(SSL *t, const SSL *f)
1367 /* Do we need to to SSL locking? */
1368 if (!SSL_set_session(t, SSL_get_session(f))) {
1373 * what if we are setup for one protocol version but want to talk another
1375 if (t->method != f->method) {
1376 t->method->ssl_free(t);
1377 t->method = f->method;
1378 if (t->method->ssl_new(t) == 0)
1382 CRYPTO_atomic_add(&f->cert->references, 1, &i, f->cert->lock);
1383 ssl_cert_free(t->cert);
1385 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
1392 /* Fix this so it checks all the valid key/cert options */
1393 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
1395 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
1396 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1399 if (ctx->cert->key->privatekey == NULL) {
1400 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1403 return (X509_check_private_key
1404 (ctx->cert->key->x509, ctx->cert->key->privatekey));
1407 /* Fix this function so that it takes an optional type parameter */
1408 int SSL_check_private_key(const SSL *ssl)
1411 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
1414 if (ssl->cert->key->x509 == NULL) {
1415 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
1418 if (ssl->cert->key->privatekey == NULL) {
1419 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
1422 return (X509_check_private_key(ssl->cert->key->x509,
1423 ssl->cert->key->privatekey));
1426 int SSL_waiting_for_async(SSL *s)
1434 int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
1436 ASYNC_WAIT_CTX *ctx = s->waitctx;
1440 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
1443 int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
1444 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
1446 ASYNC_WAIT_CTX *ctx = s->waitctx;
1450 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
1454 int SSL_accept(SSL *s)
1456 if (s->handshake_func == NULL) {
1457 /* Not properly initialized yet */
1458 SSL_set_accept_state(s);
1461 return SSL_do_handshake(s);
1464 int SSL_connect(SSL *s)
1466 if (s->handshake_func == NULL) {
1467 /* Not properly initialized yet */
1468 SSL_set_connect_state(s);
1471 return SSL_do_handshake(s);
1474 long SSL_get_default_timeout(const SSL *s)
1476 return (s->method->get_timeout());
1479 static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
1480 int (*func) (void *))
1483 if (s->waitctx == NULL) {
1484 s->waitctx = ASYNC_WAIT_CTX_new();
1485 if (s->waitctx == NULL)
1488 switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args,
1489 sizeof(struct ssl_async_args))) {
1491 s->rwstate = SSL_NOTHING;
1492 SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC);
1495 s->rwstate = SSL_ASYNC_PAUSED;
1498 s->rwstate = SSL_ASYNC_NO_JOBS;
1504 s->rwstate = SSL_NOTHING;
1505 SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR);
1506 /* Shouldn't happen */
1511 static int ssl_io_intern(void *vargs)
1513 struct ssl_async_args *args;
1518 args = (struct ssl_async_args *)vargs;
1522 switch (args->type) {
1524 return args->f.func_read(s, buf, num, &s->asyncrw);
1526 return args->f.func_write(s, buf, num, &s->asyncrw);
1528 return args->f.func_other(s);
1533 int SSL_read(SSL *s, void *buf, int num)
1539 SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH);
1543 ret = SSL_read_ex(s, buf, (size_t)num, &read);
1546 * The cast is safe here because ret should be <= INT_MAX because num is
1555 int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *read)
1557 if (s->handshake_func == NULL) {
1558 SSLerr(SSL_F_SSL_READ_EX, SSL_R_UNINITIALIZED);
1562 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1563 s->rwstate = SSL_NOTHING;
1567 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1568 struct ssl_async_args args;
1574 args.type = READFUNC;
1575 args.f.func_read = s->method->ssl_read;
1577 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1581 return s->method->ssl_read(s, buf, num, read);
1585 int SSL_peek(SSL *s, void *buf, int num)
1591 SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH);
1595 ret = SSL_peek_ex(s, buf, (size_t)num, &read);
1598 * The cast is safe here because ret should be <= INT_MAX because num is
1607 int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *read)
1609 if (s->handshake_func == NULL) {
1610 SSLerr(SSL_F_SSL_PEEK_EX, SSL_R_UNINITIALIZED);
1614 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1617 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1618 struct ssl_async_args args;
1624 args.type = READFUNC;
1625 args.f.func_read = s->method->ssl_peek;
1627 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1631 return s->method->ssl_peek(s, buf, num, read);
1635 int SSL_write(SSL *s, const void *buf, int num)
1641 SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH);
1645 ret = SSL_write_ex(s, buf, (size_t)num, &written);
1648 * The cast is safe here because ret should be <= INT_MAX because num is
1657 int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
1659 if (s->handshake_func == NULL) {
1660 SSLerr(SSL_F_SSL_WRITE_EX, SSL_R_UNINITIALIZED);
1664 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1665 s->rwstate = SSL_NOTHING;
1666 SSLerr(SSL_F_SSL_WRITE_EX, SSL_R_PROTOCOL_IS_SHUTDOWN);
1670 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1672 struct ssl_async_args args;
1675 args.buf = (void *)buf;
1677 args.type = WRITEFUNC;
1678 args.f.func_write = s->method->ssl_write;
1680 ret = ssl_start_async_job(s, &args, ssl_io_intern);
1681 *written = s->asyncrw;
1684 return s->method->ssl_write(s, buf, num, written);
1688 int SSL_shutdown(SSL *s)
1691 * Note that this function behaves differently from what one might
1692 * expect. Return values are 0 for no success (yet), 1 for success; but
1693 * calling it once is usually not enough, even if blocking I/O is used
1694 * (see ssl3_shutdown).
1697 if (s->handshake_func == NULL) {
1698 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1702 if (!SSL_in_init(s)) {
1703 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1704 struct ssl_async_args args;
1707 args.type = OTHERFUNC;
1708 args.f.func_other = s->method->ssl_shutdown;
1710 return ssl_start_async_job(s, &args, ssl_io_intern);
1712 return s->method->ssl_shutdown(s);
1715 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT);
1720 int SSL_renegotiate(SSL *s)
1722 if (s->renegotiate == 0)
1727 return (s->method->ssl_renegotiate(s));
1730 int SSL_renegotiate_abbreviated(SSL *s)
1732 if (s->renegotiate == 0)
1737 return (s->method->ssl_renegotiate(s));
1740 int SSL_renegotiate_pending(SSL *s)
1743 * becomes true when negotiation is requested; false again once a
1744 * handshake has finished
1746 return (s->renegotiate != 0);
1749 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1754 case SSL_CTRL_GET_READ_AHEAD:
1755 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1756 case SSL_CTRL_SET_READ_AHEAD:
1757 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1758 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1761 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1762 s->msg_callback_arg = parg;
1766 return (s->mode |= larg);
1767 case SSL_CTRL_CLEAR_MODE:
1768 return (s->mode &= ~larg);
1769 case SSL_CTRL_GET_MAX_CERT_LIST:
1770 return (s->max_cert_list);
1771 case SSL_CTRL_SET_MAX_CERT_LIST:
1772 l = s->max_cert_list;
1773 s->max_cert_list = larg;
1775 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1776 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1778 s->max_send_fragment = larg;
1779 if (s->max_send_fragment < s->split_send_fragment)
1780 s->split_send_fragment = s->max_send_fragment;
1782 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
1783 if ((size_t)larg > s->max_send_fragment || larg == 0)
1785 s->split_send_fragment = larg;
1787 case SSL_CTRL_SET_MAX_PIPELINES:
1788 if (larg < 1 || larg > SSL_MAX_PIPELINES)
1790 s->max_pipelines = larg;
1792 RECORD_LAYER_set_read_ahead(&s->rlayer, 1);
1794 case SSL_CTRL_GET_RI_SUPPORT:
1796 return s->s3->send_connection_binding;
1799 case SSL_CTRL_CERT_FLAGS:
1800 return (s->cert->cert_flags |= larg);
1801 case SSL_CTRL_CLEAR_CERT_FLAGS:
1802 return (s->cert->cert_flags &= ~larg);
1804 case SSL_CTRL_GET_RAW_CIPHERLIST:
1806 if (s->s3->tmp.ciphers_raw == NULL)
1808 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1809 return (int)s->s3->tmp.ciphers_rawlen;
1811 return TLS_CIPHER_LEN;
1813 case SSL_CTRL_GET_EXTMS_SUPPORT:
1814 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1816 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1820 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1821 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1822 &s->min_proto_version);
1823 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1824 return ssl_set_version_bound(s->ctx->method->version, (int)larg,
1825 &s->max_proto_version);
1827 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1831 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1834 case SSL_CTRL_SET_MSG_CALLBACK:
1835 s->msg_callback = (void (*)
1836 (int write_p, int version, int content_type,
1837 const void *buf, size_t len, SSL *ssl,
1842 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1846 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1848 return ctx->sessions;
1851 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1854 /* For some cases with ctx == NULL perform syntax checks */
1857 #ifndef OPENSSL_NO_EC
1858 case SSL_CTRL_SET_CURVES_LIST:
1859 return tls1_set_curves_list(NULL, NULL, parg);
1861 case SSL_CTRL_SET_SIGALGS_LIST:
1862 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1863 return tls1_set_sigalgs_list(NULL, parg, 0);
1870 case SSL_CTRL_GET_READ_AHEAD:
1871 return (ctx->read_ahead);
1872 case SSL_CTRL_SET_READ_AHEAD:
1873 l = ctx->read_ahead;
1874 ctx->read_ahead = larg;
1877 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1878 ctx->msg_callback_arg = parg;
1881 case SSL_CTRL_GET_MAX_CERT_LIST:
1882 return (ctx->max_cert_list);
1883 case SSL_CTRL_SET_MAX_CERT_LIST:
1884 l = ctx->max_cert_list;
1885 ctx->max_cert_list = larg;
1888 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1889 l = ctx->session_cache_size;
1890 ctx->session_cache_size = larg;
1892 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1893 return (ctx->session_cache_size);
1894 case SSL_CTRL_SET_SESS_CACHE_MODE:
1895 l = ctx->session_cache_mode;
1896 ctx->session_cache_mode = larg;
1898 case SSL_CTRL_GET_SESS_CACHE_MODE:
1899 return (ctx->session_cache_mode);
1901 case SSL_CTRL_SESS_NUMBER:
1902 return (lh_SSL_SESSION_num_items(ctx->sessions));
1903 case SSL_CTRL_SESS_CONNECT:
1904 return (ctx->stats.sess_connect);
1905 case SSL_CTRL_SESS_CONNECT_GOOD:
1906 return (ctx->stats.sess_connect_good);
1907 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1908 return (ctx->stats.sess_connect_renegotiate);
1909 case SSL_CTRL_SESS_ACCEPT:
1910 return (ctx->stats.sess_accept);
1911 case SSL_CTRL_SESS_ACCEPT_GOOD:
1912 return (ctx->stats.sess_accept_good);
1913 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1914 return (ctx->stats.sess_accept_renegotiate);
1915 case SSL_CTRL_SESS_HIT:
1916 return (ctx->stats.sess_hit);
1917 case SSL_CTRL_SESS_CB_HIT:
1918 return (ctx->stats.sess_cb_hit);
1919 case SSL_CTRL_SESS_MISSES:
1920 return (ctx->stats.sess_miss);
1921 case SSL_CTRL_SESS_TIMEOUTS:
1922 return (ctx->stats.sess_timeout);
1923 case SSL_CTRL_SESS_CACHE_FULL:
1924 return (ctx->stats.sess_cache_full);
1926 return (ctx->mode |= larg);
1927 case SSL_CTRL_CLEAR_MODE:
1928 return (ctx->mode &= ~larg);
1929 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1930 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1932 ctx->max_send_fragment = larg;
1933 if (ctx->max_send_fragment < ctx->split_send_fragment)
1934 ctx->split_send_fragment = ctx->max_send_fragment;
1936 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
1937 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
1939 ctx->split_send_fragment = larg;
1941 case SSL_CTRL_SET_MAX_PIPELINES:
1942 if (larg < 1 || larg > SSL_MAX_PIPELINES)
1944 ctx->max_pipelines = larg;
1946 case SSL_CTRL_CERT_FLAGS:
1947 return (ctx->cert->cert_flags |= larg);
1948 case SSL_CTRL_CLEAR_CERT_FLAGS:
1949 return (ctx->cert->cert_flags &= ~larg);
1950 case SSL_CTRL_SET_MIN_PROTO_VERSION:
1951 return ssl_set_version_bound(ctx->method->version, (int)larg,
1952 &ctx->min_proto_version);
1953 case SSL_CTRL_SET_MAX_PROTO_VERSION:
1954 return ssl_set_version_bound(ctx->method->version, (int)larg,
1955 &ctx->max_proto_version);
1957 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1961 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1964 case SSL_CTRL_SET_MSG_CALLBACK:
1965 ctx->msg_callback = (void (*)
1966 (int write_p, int version, int content_type,
1967 const void *buf, size_t len, SSL *ssl,
1972 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1976 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1985 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1986 const SSL_CIPHER *const *bp)
1988 if ((*ap)->id > (*bp)->id)
1990 if ((*ap)->id < (*bp)->id)
1995 /** return a STACK of the ciphers available for the SSL and in order of
1997 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
2000 if (s->cipher_list != NULL) {
2001 return (s->cipher_list);
2002 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
2003 return (s->ctx->cipher_list);
2009 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
2011 if ((s == NULL) || (s->session == NULL) || !s->server)
2013 return s->session->ciphers;
2016 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
2018 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
2020 ciphers = SSL_get_ciphers(s);
2023 ssl_set_client_disabled(s);
2024 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
2025 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
2026 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
2028 sk = sk_SSL_CIPHER_new_null();
2031 if (!sk_SSL_CIPHER_push(sk, c)) {
2032 sk_SSL_CIPHER_free(sk);
2040 /** return a STACK of the ciphers available for the SSL and in order of
2042 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
2045 if (s->cipher_list_by_id != NULL) {
2046 return (s->cipher_list_by_id);
2047 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
2048 return (s->ctx->cipher_list_by_id);
2054 /** The old interface to get the same thing as SSL_get_ciphers() */
2055 const char *SSL_get_cipher_list(const SSL *s, int n)
2057 const SSL_CIPHER *c;
2058 STACK_OF(SSL_CIPHER) *sk;
2062 sk = SSL_get_ciphers(s);
2063 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
2065 c = sk_SSL_CIPHER_value(sk, n);
2071 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2073 STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
2076 return ctx->cipher_list;
2080 /** specify the ciphers to be used by default by the SSL_CTX */
2081 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
2083 STACK_OF(SSL_CIPHER) *sk;
2085 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
2086 &ctx->cipher_list_by_id, str, ctx->cert);
2088 * ssl_create_cipher_list may return an empty stack if it was unable to
2089 * find a cipher matching the given rule string (for example if the rule
2090 * string specifies a cipher which has been disabled). This is not an
2091 * error as far as ssl_create_cipher_list is concerned, and hence
2092 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2096 else if (sk_SSL_CIPHER_num(sk) == 0) {
2097 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2103 /** specify the ciphers to be used by the SSL */
2104 int SSL_set_cipher_list(SSL *s, const char *str)
2106 STACK_OF(SSL_CIPHER) *sk;
2108 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
2109 &s->cipher_list_by_id, str, s->cert);
2110 /* see comment in SSL_CTX_set_cipher_list */
2113 else if (sk_SSL_CIPHER_num(sk) == 0) {
2114 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
2120 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
2123 STACK_OF(SSL_CIPHER) *sk;
2124 const SSL_CIPHER *c;
2127 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
2131 sk = s->session->ciphers;
2133 if (sk_SSL_CIPHER_num(sk) == 0)
2136 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
2139 c = sk_SSL_CIPHER_value(sk, i);
2140 n = strlen(c->name);
2147 memcpy(p, c->name, n + 1);
2156 /** return a servername extension value if provided in Client Hello, or NULL.
2157 * So far, only host_name types are defined (RFC 3546).
2160 const char *SSL_get_servername(const SSL *s, const int type)
2162 if (type != TLSEXT_NAMETYPE_host_name)
2165 return s->session && !s->tlsext_hostname ?
2166 s->session->tlsext_hostname : s->tlsext_hostname;
2169 int SSL_get_servername_type(const SSL *s)
2172 && (!s->tlsext_hostname ? s->session->
2173 tlsext_hostname : s->tlsext_hostname))
2174 return TLSEXT_NAMETYPE_host_name;
2179 * SSL_select_next_proto implements the standard protocol selection. It is
2180 * expected that this function is called from the callback set by
2181 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2182 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2183 * not included in the length. A byte string of length 0 is invalid. No byte
2184 * string may be truncated. The current, but experimental algorithm for
2185 * selecting the protocol is: 1) If the server doesn't support NPN then this
2186 * is indicated to the callback. In this case, the client application has to
2187 * abort the connection or have a default application level protocol. 2) If
2188 * the server supports NPN, but advertises an empty list then the client
2189 * selects the first protocol in its list, but indicates via the API that this
2190 * fallback case was enacted. 3) Otherwise, the client finds the first
2191 * protocol in the server's list that it supports and selects this protocol.
2192 * This is because it's assumed that the server has better information about
2193 * which protocol a client should use. 4) If the client doesn't support any
2194 * of the server's advertised protocols, then this is treated the same as
2195 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2196 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2198 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
2199 const unsigned char *server,
2200 unsigned int server_len,
2201 const unsigned char *client, unsigned int client_len)
2204 const unsigned char *result;
2205 int status = OPENSSL_NPN_UNSUPPORTED;
2208 * For each protocol in server preference order, see if we support it.
2210 for (i = 0; i < server_len;) {
2211 for (j = 0; j < client_len;) {
2212 if (server[i] == client[j] &&
2213 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
2214 /* We found a match */
2215 result = &server[i];
2216 status = OPENSSL_NPN_NEGOTIATED;
2226 /* There's no overlap between our protocols and the server's list. */
2228 status = OPENSSL_NPN_NO_OVERLAP;
2231 *out = (unsigned char *)result + 1;
2232 *outlen = result[0];
2236 #ifndef OPENSSL_NO_NEXTPROTONEG
2238 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2239 * client's requested protocol for this connection and returns 0. If the
2240 * client didn't request any protocol, then *data is set to NULL. Note that
2241 * the client can request any protocol it chooses. The value returned from
2242 * this function need not be a member of the list of supported protocols
2243 * provided by the callback.
2245 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
2248 *data = s->next_proto_negotiated;
2252 *len = s->next_proto_negotiated_len;
2257 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2258 * a TLS server needs a list of supported protocols for Next Protocol
2259 * Negotiation. The returned list must be in wire format. The list is
2260 * returned by setting |out| to point to it and |outlen| to its length. This
2261 * memory will not be modified, but one should assume that the SSL* keeps a
2262 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2263 * wishes to advertise. Otherwise, no such extension will be included in the
2266 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
2267 int (*cb) (SSL *ssl,
2270 unsigned int *outlen,
2271 void *arg), void *arg)
2273 ctx->next_protos_advertised_cb = cb;
2274 ctx->next_protos_advertised_cb_arg = arg;
2278 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2279 * client needs to select a protocol from the server's provided list. |out|
2280 * must be set to point to the selected protocol (which may be within |in|).
2281 * The length of the protocol name must be written into |outlen|. The
2282 * server's advertised protocols are provided in |in| and |inlen|. The
2283 * callback can assume that |in| is syntactically valid. The client must
2284 * select a protocol. It is fatal to the connection if this callback returns
2285 * a value other than SSL_TLSEXT_ERR_OK.
2287 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
2288 int (*cb) (SSL *s, unsigned char **out,
2289 unsigned char *outlen,
2290 const unsigned char *in,
2292 void *arg), void *arg)
2294 ctx->next_proto_select_cb = cb;
2295 ctx->next_proto_select_cb_arg = arg;
2300 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2301 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2302 * length-prefixed strings). Returns 0 on success.
2304 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
2305 unsigned int protos_len)
2307 OPENSSL_free(ctx->alpn_client_proto_list);
2308 ctx->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
2309 if (ctx->alpn_client_proto_list == NULL) {
2310 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2313 ctx->alpn_client_proto_list_len = protos_len;
2319 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2320 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2321 * length-prefixed strings). Returns 0 on success.
2323 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
2324 unsigned int protos_len)
2326 OPENSSL_free(ssl->alpn_client_proto_list);
2327 ssl->alpn_client_proto_list = OPENSSL_memdup(protos, protos_len);
2328 if (ssl->alpn_client_proto_list == NULL) {
2329 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE);
2332 ssl->alpn_client_proto_list_len = protos_len;
2338 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2339 * called during ClientHello processing in order to select an ALPN protocol
2340 * from the client's list of offered protocols.
2342 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
2343 int (*cb) (SSL *ssl,
2344 const unsigned char **out,
2345 unsigned char *outlen,
2346 const unsigned char *in,
2348 void *arg), void *arg)
2350 ctx->alpn_select_cb = cb;
2351 ctx->alpn_select_cb_arg = arg;
2355 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2356 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2357 * (not including the leading length-prefix byte). If the server didn't
2358 * respond with a negotiated protocol then |*len| will be zero.
2360 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
2365 *data = ssl->s3->alpn_selected;
2369 *len = ssl->s3->alpn_selected_len;
2372 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2373 const char *label, size_t llen,
2374 const unsigned char *p, size_t plen,
2377 if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER)
2380 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
2385 static unsigned long ssl_session_hash(const SSL_SESSION *a)
2390 ((unsigned int)a->session_id[0]) |
2391 ((unsigned int)a->session_id[1] << 8L) |
2392 ((unsigned long)a->session_id[2] << 16L) |
2393 ((unsigned long)a->session_id[3] << 24L);
2398 * NB: If this function (or indeed the hash function which uses a sort of
2399 * coarser function than this one) is changed, ensure
2400 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2401 * being able to construct an SSL_SESSION that will collide with any existing
2402 * session with a matching session ID.
2404 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
2406 if (a->ssl_version != b->ssl_version)
2408 if (a->session_id_length != b->session_id_length)
2410 return (memcmp(a->session_id, b->session_id, a->session_id_length));
2414 * These wrapper functions should remain rather than redeclaring
2415 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2416 * variable. The reason is that the functions aren't static, they're exposed
2420 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
2422 SSL_CTX *ret = NULL;
2425 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
2429 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
2432 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
2433 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE);
2437 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2438 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
2441 ret = OPENSSL_zalloc(sizeof(*ret));
2446 ret->min_proto_version = 0;
2447 ret->max_proto_version = 0;
2448 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
2449 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
2450 /* We take the system default. */
2451 ret->session_timeout = meth->get_timeout();
2452 ret->references = 1;
2453 ret->lock = CRYPTO_THREAD_lock_new();
2454 if (ret->lock == NULL) {
2455 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2459 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
2460 ret->verify_mode = SSL_VERIFY_NONE;
2461 if ((ret->cert = ssl_cert_new()) == NULL)
2464 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
2465 if (ret->sessions == NULL)
2467 ret->cert_store = X509_STORE_new();
2468 if (ret->cert_store == NULL)
2470 #ifndef OPENSSL_NO_CT
2471 ret->ctlog_store = CTLOG_STORE_new();
2472 if (ret->ctlog_store == NULL)
2475 if (!ssl_create_cipher_list(ret->method,
2476 &ret->cipher_list, &ret->cipher_list_by_id,
2477 SSL_DEFAULT_CIPHER_LIST, ret->cert)
2478 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
2479 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
2483 ret->param = X509_VERIFY_PARAM_new();
2484 if (ret->param == NULL)
2487 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
2488 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
2491 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
2492 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
2496 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
2499 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))
2502 /* No compression for DTLS */
2503 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
2504 ret->comp_methods = SSL_COMP_get_compression_methods();
2506 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2507 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2509 /* Setup RFC5077 ticket keys */
2510 if ((RAND_bytes(ret->tlsext_tick_key_name,
2511 sizeof(ret->tlsext_tick_key_name)) <= 0)
2512 || (RAND_bytes(ret->tlsext_tick_hmac_key,
2513 sizeof(ret->tlsext_tick_hmac_key)) <= 0)
2514 || (RAND_bytes(ret->tlsext_tick_aes_key,
2515 sizeof(ret->tlsext_tick_aes_key)) <= 0))
2516 ret->options |= SSL_OP_NO_TICKET;
2518 #ifndef OPENSSL_NO_SRP
2519 if (!SSL_CTX_SRP_CTX_init(ret))
2522 #ifndef OPENSSL_NO_ENGINE
2523 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2524 # define eng_strx(x) #x
2525 # define eng_str(x) eng_strx(x)
2526 /* Use specific client engine automatically... ignore errors */
2529 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2532 ENGINE_load_builtin_engines();
2533 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2535 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2541 * Default is to connect to non-RI servers. When RI is more widely
2542 * deployed might change this.
2544 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2546 * Disable compression by default to prevent CRIME. Applications can
2547 * re-enable compression by configuring
2548 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2549 * or by using the SSL_CONF library.
2551 ret->options |= SSL_OP_NO_COMPRESSION;
2553 ret->tlsext_status_type = -1;
2557 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2563 int SSL_CTX_up_ref(SSL_CTX *ctx)
2567 if (CRYPTO_atomic_add(&ctx->references, 1, &i, ctx->lock) <= 0)
2570 REF_PRINT_COUNT("SSL_CTX", ctx);
2571 REF_ASSERT_ISNT(i < 2);
2572 return ((i > 1) ? 1 : 0);
2575 void SSL_CTX_free(SSL_CTX *a)
2582 CRYPTO_atomic_add(&a->references, -1, &i, a->lock);
2583 REF_PRINT_COUNT("SSL_CTX", a);
2586 REF_ASSERT_ISNT(i < 0);
2588 X509_VERIFY_PARAM_free(a->param);
2589 dane_ctx_final(&a->dane);
2592 * Free internal session cache. However: the remove_cb() may reference
2593 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2594 * after the sessions were flushed.
2595 * As the ex_data handling routines might also touch the session cache,
2596 * the most secure solution seems to be: empty (flush) the cache, then
2597 * free ex_data, then finally free the cache.
2598 * (See ticket [openssl.org #212].)
2600 if (a->sessions != NULL)
2601 SSL_CTX_flush_sessions(a, 0);
2603 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2604 lh_SSL_SESSION_free(a->sessions);
2605 X509_STORE_free(a->cert_store);
2606 #ifndef OPENSSL_NO_CT
2607 CTLOG_STORE_free(a->ctlog_store);
2609 sk_SSL_CIPHER_free(a->cipher_list);
2610 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2611 ssl_cert_free(a->cert);
2612 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2613 sk_X509_pop_free(a->extra_certs, X509_free);
2614 a->comp_methods = NULL;
2615 #ifndef OPENSSL_NO_SRTP
2616 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2618 #ifndef OPENSSL_NO_SRP
2619 SSL_CTX_SRP_CTX_free(a);
2621 #ifndef OPENSSL_NO_ENGINE
2622 ENGINE_finish(a->client_cert_engine);
2625 #ifndef OPENSSL_NO_EC
2626 OPENSSL_free(a->tlsext_ecpointformatlist);
2627 OPENSSL_free(a->tlsext_ellipticcurvelist);
2629 OPENSSL_free(a->alpn_client_proto_list);
2631 CRYPTO_THREAD_lock_free(a->lock);
2636 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2638 ctx->default_passwd_callback = cb;
2641 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2643 ctx->default_passwd_callback_userdata = u;
2646 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
2648 return ctx->default_passwd_callback;
2651 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
2653 return ctx->default_passwd_callback_userdata;
2656 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
2658 s->default_passwd_callback = cb;
2661 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
2663 s->default_passwd_callback_userdata = u;
2666 pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
2668 return s->default_passwd_callback;
2671 void *SSL_get_default_passwd_cb_userdata(SSL *s)
2673 return s->default_passwd_callback_userdata;
2676 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2677 int (*cb) (X509_STORE_CTX *, void *),
2680 ctx->app_verify_callback = cb;
2681 ctx->app_verify_arg = arg;
2684 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2685 int (*cb) (int, X509_STORE_CTX *))
2687 ctx->verify_mode = mode;
2688 ctx->default_verify_callback = cb;
2691 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2693 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2696 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
2698 ssl_cert_set_cert_cb(c->cert, cb, arg);
2701 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2703 ssl_cert_set_cert_cb(s->cert, cb, arg);
2706 void ssl_set_masks(SSL *s)
2708 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2712 uint32_t *pvalid = s->s3->tmp.valid_flags;
2713 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
2714 unsigned long mask_k, mask_a;
2715 #ifndef OPENSSL_NO_EC
2716 int have_ecc_cert, ecdsa_ok;
2722 #ifndef OPENSSL_NO_DH
2723 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2728 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
2729 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
2730 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
2731 #ifndef OPENSSL_NO_EC
2732 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2738 fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n",
2739 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
2742 #ifndef OPENSSL_NO_GOST
2743 cpk = &(c->pkeys[SSL_PKEY_GOST12_512]);
2744 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2745 mask_k |= SSL_kGOST;
2746 mask_a |= SSL_aGOST12;
2748 cpk = &(c->pkeys[SSL_PKEY_GOST12_256]);
2749 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2750 mask_k |= SSL_kGOST;
2751 mask_a |= SSL_aGOST12;
2753 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2754 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2755 mask_k |= SSL_kGOST;
2756 mask_a |= SSL_aGOST01;
2766 if (rsa_enc || rsa_sign) {
2774 mask_a |= SSL_aNULL;
2777 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2778 * depending on the key usage extension.
2780 #ifndef OPENSSL_NO_EC
2781 if (have_ecc_cert) {
2783 cpk = &c->pkeys[SSL_PKEY_ECC];
2785 ex_kusage = X509_get_key_usage(x);
2786 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2787 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2790 mask_a |= SSL_aECDSA;
2794 #ifndef OPENSSL_NO_EC
2795 mask_k |= SSL_kECDHE;
2798 #ifndef OPENSSL_NO_PSK
2801 if (mask_k & SSL_kRSA)
2802 mask_k |= SSL_kRSAPSK;
2803 if (mask_k & SSL_kDHE)
2804 mask_k |= SSL_kDHEPSK;
2805 if (mask_k & SSL_kECDHE)
2806 mask_k |= SSL_kECDHEPSK;
2809 s->s3->tmp.mask_k = mask_k;
2810 s->s3->tmp.mask_a = mask_a;
2813 #ifndef OPENSSL_NO_EC
2815 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2817 if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
2818 /* key usage, if present, must allow signing */
2819 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
2820 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2821 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2825 return 1; /* all checks are ok */
2830 static int ssl_get_server_cert_index(const SSL *s)
2833 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2834 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2835 idx = SSL_PKEY_RSA_SIGN;
2836 if (idx == SSL_PKEY_GOST_EC) {
2837 if (s->cert->pkeys[SSL_PKEY_GOST12_512].x509)
2838 idx = SSL_PKEY_GOST12_512;
2839 else if (s->cert->pkeys[SSL_PKEY_GOST12_256].x509)
2840 idx = SSL_PKEY_GOST12_256;
2841 else if (s->cert->pkeys[SSL_PKEY_GOST01].x509)
2842 idx = SSL_PKEY_GOST01;
2847 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2851 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2857 if (!s->s3 || !s->s3->tmp.new_cipher)
2861 i = ssl_get_server_cert_index(s);
2863 /* This may or may not be an error. */
2868 return &c->pkeys[i];
2871 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2874 unsigned long alg_a;
2878 alg_a = cipher->algorithm_auth;
2881 if ((alg_a & SSL_aDSS) && (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2882 idx = SSL_PKEY_DSA_SIGN;
2883 else if (alg_a & SSL_aRSA) {
2884 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2885 idx = SSL_PKEY_RSA_SIGN;
2886 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2887 idx = SSL_PKEY_RSA_ENC;
2888 } else if ((alg_a & SSL_aECDSA) &&
2889 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2892 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2896 *pmd = s->s3->tmp.md[idx];
2897 return c->pkeys[idx].privatekey;
2900 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2901 size_t *serverinfo_length)
2905 *serverinfo_length = 0;
2908 i = ssl_get_server_cert_index(s);
2912 if (c->pkeys[i].serverinfo == NULL)
2915 *serverinfo = c->pkeys[i].serverinfo;
2916 *serverinfo_length = c->pkeys[i].serverinfo_length;
2920 void ssl_update_cache(SSL *s, int mode)
2925 * If the session_id_length is 0, we are not supposed to cache it, and it
2926 * would be rather hard to do anyway :-)
2928 if (s->session->session_id_length == 0)
2931 i = s->session_ctx->session_cache_mode;
2932 if ((i & mode) && (!s->hit)
2933 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2934 || SSL_CTX_add_session(s->session_ctx, s->session))
2935 && (s->session_ctx->new_session_cb != NULL)) {
2936 SSL_SESSION_up_ref(s->session);
2937 if (!s->session_ctx->new_session_cb(s, s->session))
2938 SSL_SESSION_free(s->session);
2941 /* auto flush every 255 connections */
2942 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2943 if ((((mode & SSL_SESS_CACHE_CLIENT)
2944 ? s->session_ctx->stats.sess_connect_good
2945 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2946 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2951 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2956 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2961 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2965 if (s->method != meth) {
2966 const SSL_METHOD *sm = s->method;
2967 int (*hf) (SSL *) = s->handshake_func;
2969 if (sm->version == meth->version)
2974 ret = s->method->ssl_new(s);
2977 if (hf == sm->ssl_connect)
2978 s->handshake_func = meth->ssl_connect;
2979 else if (hf == sm->ssl_accept)
2980 s->handshake_func = meth->ssl_accept;
2985 int SSL_get_error(const SSL *s, int i)
2992 return (SSL_ERROR_NONE);
2995 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2996 * where we do encode the error
2998 if ((l = ERR_peek_error()) != 0) {
2999 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
3000 return (SSL_ERROR_SYSCALL);
3002 return (SSL_ERROR_SSL);
3005 if (SSL_want_read(s)) {
3006 bio = SSL_get_rbio(s);
3007 if (BIO_should_read(bio))
3008 return (SSL_ERROR_WANT_READ);
3009 else if (BIO_should_write(bio))
3011 * This one doesn't make too much sense ... We never try to write
3012 * to the rbio, and an application program where rbio and wbio
3013 * are separate couldn't even know what it should wait for.
3014 * However if we ever set s->rwstate incorrectly (so that we have
3015 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3016 * wbio *are* the same, this test works around that bug; so it
3017 * might be safer to keep it.
3019 return (SSL_ERROR_WANT_WRITE);
3020 else if (BIO_should_io_special(bio)) {
3021 reason = BIO_get_retry_reason(bio);
3022 if (reason == BIO_RR_CONNECT)
3023 return (SSL_ERROR_WANT_CONNECT);
3024 else if (reason == BIO_RR_ACCEPT)
3025 return (SSL_ERROR_WANT_ACCEPT);
3027 return (SSL_ERROR_SYSCALL); /* unknown */
3031 if (SSL_want_write(s)) {
3033 * Access wbio directly - in order to use the buffered bio if
3037 if (BIO_should_write(bio))
3038 return (SSL_ERROR_WANT_WRITE);
3039 else if (BIO_should_read(bio))
3041 * See above (SSL_want_read(s) with BIO_should_write(bio))
3043 return (SSL_ERROR_WANT_READ);
3044 else if (BIO_should_io_special(bio)) {
3045 reason = BIO_get_retry_reason(bio);
3046 if (reason == BIO_RR_CONNECT)
3047 return (SSL_ERROR_WANT_CONNECT);
3048 else if (reason == BIO_RR_ACCEPT)
3049 return (SSL_ERROR_WANT_ACCEPT);
3051 return (SSL_ERROR_SYSCALL);
3054 if (SSL_want_x509_lookup(s)) {
3055 return (SSL_ERROR_WANT_X509_LOOKUP);
3057 if (SSL_want_async(s)) {
3058 return SSL_ERROR_WANT_ASYNC;
3060 if (SSL_want_async_job(s)) {
3061 return SSL_ERROR_WANT_ASYNC_JOB;
3064 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
3065 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
3066 return (SSL_ERROR_ZERO_RETURN);
3068 return (SSL_ERROR_SYSCALL);
3071 static int ssl_do_handshake_intern(void *vargs)
3073 struct ssl_async_args *args;
3076 args = (struct ssl_async_args *)vargs;
3079 return s->handshake_func(s);
3082 int SSL_do_handshake(SSL *s)
3086 if (s->handshake_func == NULL) {
3087 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
3091 s->method->ssl_renegotiate_check(s);
3093 if (SSL_in_init(s) || SSL_in_before(s)) {
3094 if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
3095 struct ssl_async_args args;
3099 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
3101 ret = s->handshake_func(s);
3107 void SSL_set_accept_state(SSL *s)
3111 ossl_statem_clear(s);
3112 s->handshake_func = s->method->ssl_accept;
3116 void SSL_set_connect_state(SSL *s)
3120 ossl_statem_clear(s);
3121 s->handshake_func = s->method->ssl_connect;
3125 int ssl_undefined_function(SSL *s)
3127 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3131 int ssl_undefined_void_function(void)
3133 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
3134 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3138 int ssl_undefined_const_function(const SSL *s)
3143 const SSL_METHOD *ssl_bad_method(int ver)
3145 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
3149 const char *ssl_protocol_to_string(int version)
3153 case TLS1_3_VERSION:
3156 case TLS1_2_VERSION:
3159 case TLS1_1_VERSION:
3174 case DTLS1_2_VERSION:
3182 const char *SSL_get_version(const SSL *s)
3184 return ssl_protocol_to_string(s->version);
3187 SSL *SSL_dup(SSL *s)
3189 STACK_OF(X509_NAME) *sk;
3194 /* If we're not quiescent, just up_ref! */
3195 if (!SSL_in_init(s) || !SSL_in_before(s)) {
3196 CRYPTO_atomic_add(&s->references, 1, &i, s->lock);
3201 * Otherwise, copy configuration state, and session if set.
3203 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
3206 if (s->session != NULL) {
3208 * Arranges to share the same session via up_ref. This "copies"
3209 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3211 if (!SSL_copy_session_id(ret, s))
3215 * No session has been established yet, so we have to expect that
3216 * s->cert or ret->cert will be changed later -- they should not both
3217 * point to the same object, and thus we can't use
3218 * SSL_copy_session_id.
3220 if (!SSL_set_ssl_method(ret, s->method))
3223 if (s->cert != NULL) {
3224 ssl_cert_free(ret->cert);
3225 ret->cert = ssl_cert_dup(s->cert);
3226 if (ret->cert == NULL)
3230 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
3234 if (!ssl_dane_dup(ret, s))
3236 ret->version = s->version;
3237 ret->options = s->options;
3238 ret->mode = s->mode;
3239 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
3240 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
3241 ret->msg_callback = s->msg_callback;
3242 ret->msg_callback_arg = s->msg_callback_arg;
3243 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
3244 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
3245 ret->generate_session_id = s->generate_session_id;
3247 SSL_set_info_callback(ret, SSL_get_info_callback(s));
3249 /* copy app data, a little dangerous perhaps */
3250 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
3253 /* setup rbio, and wbio */
3254 if (s->rbio != NULL) {
3255 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
3258 if (s->wbio != NULL) {
3259 if (s->wbio != s->rbio) {
3260 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
3263 BIO_up_ref(ret->rbio);
3264 ret->wbio = ret->rbio;
3268 ret->server = s->server;
3269 if (s->handshake_func) {
3271 SSL_set_accept_state(ret);
3273 SSL_set_connect_state(ret);
3275 ret->shutdown = s->shutdown;
3278 ret->default_passwd_callback = s->default_passwd_callback;
3279 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
3281 X509_VERIFY_PARAM_inherit(ret->param, s->param);
3283 /* dup the cipher_list and cipher_list_by_id stacks */
3284 if (s->cipher_list != NULL) {
3285 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
3288 if (s->cipher_list_by_id != NULL)
3289 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
3293 /* Dup the client_CA list */
3294 if (s->client_CA != NULL) {
3295 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
3297 ret->client_CA = sk;
3298 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
3299 xn = sk_X509_NAME_value(sk, i);
3300 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
3313 void ssl_clear_cipher_ctx(SSL *s)
3315 if (s->enc_read_ctx != NULL) {
3316 EVP_CIPHER_CTX_free(s->enc_read_ctx);
3317 s->enc_read_ctx = NULL;
3319 if (s->enc_write_ctx != NULL) {
3320 EVP_CIPHER_CTX_free(s->enc_write_ctx);
3321 s->enc_write_ctx = NULL;
3323 #ifndef OPENSSL_NO_COMP
3324 COMP_CTX_free(s->expand);
3326 COMP_CTX_free(s->compress);
3331 X509 *SSL_get_certificate(const SSL *s)
3333 if (s->cert != NULL)
3334 return (s->cert->key->x509);
3339 EVP_PKEY *SSL_get_privatekey(const SSL *s)
3341 if (s->cert != NULL)
3342 return (s->cert->key->privatekey);
3347 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3349 if (ctx->cert != NULL)
3350 return ctx->cert->key->x509;
3355 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3357 if (ctx->cert != NULL)
3358 return ctx->cert->key->privatekey;
3363 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3365 if ((s->session != NULL) && (s->session->cipher != NULL))
3366 return (s->session->cipher);
3370 const COMP_METHOD *SSL_get_current_compression(SSL *s)
3372 #ifndef OPENSSL_NO_COMP
3373 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
3379 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3381 #ifndef OPENSSL_NO_COMP
3382 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
3388 int ssl_init_wbio_buffer(SSL *s)
3392 if (s->bbio != NULL) {
3393 /* Already buffered. */
3397 bbio = BIO_new(BIO_f_buffer());
3398 if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) {
3400 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3404 s->wbio = BIO_push(bbio, s->wbio);
3409 void ssl_free_wbio_buffer(SSL *s)
3411 /* callers ensure s is never null */
3412 if (s->bbio == NULL)
3415 s->wbio = BIO_pop(s->wbio);
3416 assert(s->wbio != NULL);
3421 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3423 ctx->quiet_shutdown = mode;
3426 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3428 return (ctx->quiet_shutdown);
3431 void SSL_set_quiet_shutdown(SSL *s, int mode)
3433 s->quiet_shutdown = mode;
3436 int SSL_get_quiet_shutdown(const SSL *s)
3438 return (s->quiet_shutdown);
3441 void SSL_set_shutdown(SSL *s, int mode)
3446 int SSL_get_shutdown(const SSL *s)
3451 int SSL_version(const SSL *s)
3456 int SSL_client_version(const SSL *s)
3458 return s->client_version;
3461 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3466 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3469 if (ssl->ctx == ctx)
3472 ctx = ssl->initial_ctx;
3473 new_cert = ssl_cert_dup(ctx->cert);
3474 if (new_cert == NULL) {
3477 ssl_cert_free(ssl->cert);
3478 ssl->cert = new_cert;
3481 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3482 * so setter APIs must prevent invalid lengths from entering the system.
3484 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3487 * If the session ID context matches that of the parent SSL_CTX,
3488 * inherit it from the new SSL_CTX as well. If however the context does
3489 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3490 * leave it unchanged.
3492 if ((ssl->ctx != NULL) &&
3493 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3494 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3495 ssl->sid_ctx_length = ctx->sid_ctx_length;
3496 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3499 SSL_CTX_up_ref(ctx);
3500 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3506 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3508 return (X509_STORE_set_default_paths(ctx->cert_store));
3511 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
3513 X509_LOOKUP *lookup;
3515 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
3518 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
3520 /* Clear any errors if the default directory does not exist */
3526 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
3528 X509_LOOKUP *lookup;
3530 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
3534 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
3536 /* Clear any errors if the default file does not exist */
3542 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3545 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3548 void SSL_set_info_callback(SSL *ssl,
3549 void (*cb) (const SSL *ssl, int type, int val))
3551 ssl->info_callback = cb;
3555 * One compiler (Diab DCC) doesn't like argument names in returned function
3558 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3561 return ssl->info_callback;
3564 void SSL_set_verify_result(SSL *ssl, long arg)
3566 ssl->verify_result = arg;
3569 long SSL_get_verify_result(const SSL *ssl)
3571 return (ssl->verify_result);
3574 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
3577 return sizeof(ssl->s3->client_random);
3578 if (outlen > sizeof(ssl->s3->client_random))
3579 outlen = sizeof(ssl->s3->client_random);
3580 memcpy(out, ssl->s3->client_random, outlen);
3584 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
3587 return sizeof(ssl->s3->server_random);
3588 if (outlen > sizeof(ssl->s3->server_random))
3589 outlen = sizeof(ssl->s3->server_random);
3590 memcpy(out, ssl->s3->server_random, outlen);
3594 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
3595 unsigned char *out, size_t outlen)
3598 return session->master_key_length;
3599 if (outlen > session->master_key_length)
3600 outlen = session->master_key_length;
3601 memcpy(out, session->master_key, outlen);
3605 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3607 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3610 void *SSL_get_ex_data(const SSL *s, int idx)
3612 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3615 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3617 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3620 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3622 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3630 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3632 return (ctx->cert_store);
3635 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3637 X509_STORE_free(ctx->cert_store);
3638 ctx->cert_store = store;
3641 void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
3644 X509_STORE_up_ref(store);
3645 SSL_CTX_set_cert_store(ctx, store);
3648 int SSL_want(const SSL *s)
3650 return (s->rwstate);
3654 * \brief Set the callback for generating temporary DH keys.
3655 * \param ctx the SSL context.
3656 * \param dh the callback
3659 #ifndef OPENSSL_NO_DH
3660 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3661 DH *(*dh) (SSL *ssl, int is_export,
3664 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3667 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3670 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3674 #ifndef OPENSSL_NO_PSK
3675 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3677 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3678 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3681 OPENSSL_free(ctx->cert->psk_identity_hint);
3682 if (identity_hint != NULL) {
3683 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3684 if (ctx->cert->psk_identity_hint == NULL)
3687 ctx->cert->psk_identity_hint = NULL;
3691 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3696 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3697 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3700 OPENSSL_free(s->cert->psk_identity_hint);
3701 if (identity_hint != NULL) {
3702 s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
3703 if (s->cert->psk_identity_hint == NULL)
3706 s->cert->psk_identity_hint = NULL;
3710 const char *SSL_get_psk_identity_hint(const SSL *s)
3712 if (s == NULL || s->session == NULL)
3714 return (s->session->psk_identity_hint);
3717 const char *SSL_get_psk_identity(const SSL *s)
3719 if (s == NULL || s->session == NULL)
3721 return (s->session->psk_identity);
3724 void SSL_set_psk_client_callback(SSL *s,
3725 unsigned int (*cb) (SSL *ssl,
3731 unsigned int max_psk_len))
3733 s->psk_client_callback = cb;
3736 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3737 unsigned int (*cb) (SSL *ssl,
3746 ctx->psk_client_callback = cb;
3749 void SSL_set_psk_server_callback(SSL *s,
3750 unsigned int (*cb) (SSL *ssl,
3751 const char *identity,
3753 unsigned int max_psk_len))
3755 s->psk_server_callback = cb;
3758 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3759 unsigned int (*cb) (SSL *ssl,
3760 const char *identity,
3765 ctx->psk_server_callback = cb;
3769 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3770 void (*cb) (int write_p, int version,
3771 int content_type, const void *buf,
3772 size_t len, SSL *ssl, void *arg))
3774 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3777 void SSL_set_msg_callback(SSL *ssl,
3778 void (*cb) (int write_p, int version,
3779 int content_type, const void *buf,
3780 size_t len, SSL *ssl, void *arg))
3782 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3785 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3786 int (*cb) (SSL *ssl,
3790 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3791 (void (*)(void))cb);
3794 void SSL_set_not_resumable_session_callback(SSL *ssl,
3795 int (*cb) (SSL *ssl,
3796 int is_forward_secure))
3798 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3799 (void (*)(void))cb);
3803 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3804 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
3805 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3809 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3811 ssl_clear_hash_ctx(hash);
3812 *hash = EVP_MD_CTX_new();
3813 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
3814 EVP_MD_CTX_free(*hash);
3821 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3825 EVP_MD_CTX_free(*hash);
3829 /* Retrieve handshake hashes */
3830 int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
3833 EVP_MD_CTX *ctx = NULL;
3834 EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
3835 int hashleni = EVP_MD_CTX_size(hdgst);
3838 if (hashleni < 0 || (size_t)hashleni > outlen)
3841 ctx = EVP_MD_CTX_new();
3845 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
3846 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0)
3849 *hashlen = hashleni;
3853 EVP_MD_CTX_free(ctx);
3857 int SSL_session_reused(SSL *s)
3862 int SSL_is_server(SSL *s)
3867 #if OPENSSL_API_COMPAT < 0x10100000L
3868 void SSL_set_debug(SSL *s, int debug)
3870 /* Old function was do-nothing anyway... */
3876 void SSL_set_security_level(SSL *s, int level)
3878 s->cert->sec_level = level;
3881 int SSL_get_security_level(const SSL *s)
3883 return s->cert->sec_level;
3886 void SSL_set_security_callback(SSL *s,
3887 int (*cb) (const SSL *s, const SSL_CTX *ctx,
3888 int op, int bits, int nid,
3889 void *other, void *ex))
3891 s->cert->sec_cb = cb;
3894 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
3895 const SSL_CTX *ctx, int op,
3896 int bits, int nid, void *other,
3898 return s->cert->sec_cb;
3901 void SSL_set0_security_ex_data(SSL *s, void *ex)
3903 s->cert->sec_ex = ex;
3906 void *SSL_get0_security_ex_data(const SSL *s)
3908 return s->cert->sec_ex;
3911 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3913 ctx->cert->sec_level = level;
3916 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3918 return ctx->cert->sec_level;
3921 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3922 int (*cb) (const SSL *s, const SSL_CTX *ctx,
3923 int op, int bits, int nid,
3924 void *other, void *ex))
3926 ctx->cert->sec_cb = cb;
3929 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
3935 return ctx->cert->sec_cb;
3938 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3940 ctx->cert->sec_ex = ex;
3943 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3945 return ctx->cert->sec_ex;
3949 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3950 * can return unsigned long, instead of the generic long return value from the
3951 * control interface.
3953 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx)
3955 return ctx->options;
3958 unsigned long SSL_get_options(const SSL *s)
3963 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op)
3965 return ctx->options |= op;
3968 unsigned long SSL_set_options(SSL *s, unsigned long op)
3970 return s->options |= op;
3973 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op)