2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 # include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 # include <openssl/engine.h>
163 const char *SSL_version_str = OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method = {
167 * evil casts, but these functions are only called if there's a library
170 (int (*)(SSL *, int))ssl_undefined_function,
171 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
172 ssl_undefined_function,
173 (int (*)(SSL *, unsigned char *, unsigned char *, int))
174 ssl_undefined_function,
175 (int (*)(SSL *, int))ssl_undefined_function,
176 (int (*)(SSL *, const char *, int, unsigned char *))
177 ssl_undefined_function,
178 0, /* finish_mac_length */
179 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
180 NULL, /* client_finished_label */
181 0, /* client_finished_label_len */
182 NULL, /* server_finished_label */
183 0, /* server_finished_label_len */
184 (int (*)(int))ssl_undefined_function,
185 (int (*)(SSL *, unsigned char *, size_t, const char *,
186 size_t, const unsigned char *, size_t,
187 int use_context))ssl_undefined_function,
190 int SSL_clear(SSL *s)
196 if (s->method == NULL) {
197 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
201 if (ssl_clear_bad_session(s)) {
202 SSL_SESSION_free(s->session);
210 if (s->renegotiate) {
211 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
217 s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
219 s->version = s->method->version;
220 s->client_version = s->version;
221 s->rwstate = SSL_NOTHING;
222 s->rstate = SSL_ST_READ_HEADER;
224 if (s->init_buf != NULL) {
225 BUF_MEM_free(s->init_buf);
229 ssl_clear_cipher_ctx(s);
230 ssl_clear_hash_ctx(&s->read_hash);
231 ssl_clear_hash_ctx(&s->write_hash);
236 * Check to see if we were changed into a different method, if so, revert
237 * back if we are not doing session-id reuse.
239 if (!s->in_handshake && (s->session == NULL)
240 && (s->method != s->ctx->method)) {
241 s->method->ssl_free(s);
242 s->method = s->ctx->method;
243 if (!s->method->ssl_new(s))
246 s->method->ssl_clear(s);
248 read_ahead = RECORD_LAYER_get_read_ahead(&s->rlayer);
249 rp = SSL3_BUFFER_get_buf(RECORD_LAYER_get_rbuf(&s->rlayer));
250 rlen = SSL3_BUFFER_get_len(RECORD_LAYER_get_rbuf(&s->rlayer));
251 memset(&s->rlayer, 0, sizeof s->rlayer);
252 SSL3_BUFFER_set_buf(RECORD_LAYER_get_rbuf(&s->rlayer), rp);
253 SSL3_BUFFER_set_len(RECORD_LAYER_get_rbuf(&s->rlayer), rlen);
255 /* Do I need to do this? As far as I can tell read_ahead did not
256 * previously get reset by SSL_clear...so I'll keep it that way..but is
259 RECORD_LAYER_set_read_ahead(&s->rlayer, read_ahead);
264 /** Used to change an SSL_CTXs default SSL method type */
265 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
267 STACK_OF(SSL_CIPHER) *sk;
271 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
272 &(ctx->cipher_list_by_id),
273 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
274 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
275 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
276 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
282 SSL *SSL_new(SSL_CTX *ctx)
287 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
290 if (ctx->method == NULL) {
291 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
295 s = (SSL *)OPENSSL_malloc(sizeof(SSL));
298 memset(s, 0, sizeof(SSL));
300 RECORD_LAYER_set_ssl(&s->rlayer, s);
302 #ifndef OPENSSL_NO_KRB5
303 s->kssl_ctx = kssl_ctx_new();
304 #endif /* OPENSSL_NO_KRB5 */
306 s->options = ctx->options;
308 s->max_cert_list = ctx->max_cert_list;
311 * Earlier library versions used to copy the pointer to the CERT, not
312 * its contents; only when setting new parameters for the per-SSL
313 * copy, ssl_cert_new would be called (and the direct reference to
314 * the per-SSL_CTX settings would be lost, but those still were
315 * indirectly accessed for various purposes, and for that reason they
316 * used to be known as s->ctx->default_cert). Now we don't look at the
317 * SSL_CTX's CERT after having duplicated it once.
319 s->cert = ssl_cert_dup(ctx->cert);
323 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
324 s->msg_callback = ctx->msg_callback;
325 s->msg_callback_arg = ctx->msg_callback_arg;
326 s->verify_mode = ctx->verify_mode;
327 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
328 s->sid_ctx_length = ctx->sid_ctx_length;
329 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
330 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
331 s->verify_callback = ctx->default_verify_callback;
332 s->generate_session_id = ctx->generate_session_id;
334 s->param = X509_VERIFY_PARAM_new();
337 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
338 s->quiet_shutdown = ctx->quiet_shutdown;
339 s->max_send_fragment = ctx->max_send_fragment;
341 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
343 #ifndef OPENSSL_NO_TLSEXT
344 s->tlsext_debug_cb = 0;
345 s->tlsext_debug_arg = NULL;
346 s->tlsext_ticket_expected = 0;
347 s->tlsext_status_type = -1;
348 s->tlsext_status_expected = 0;
349 s->tlsext_ocsp_ids = NULL;
350 s->tlsext_ocsp_exts = NULL;
351 s->tlsext_ocsp_resp = NULL;
352 s->tlsext_ocsp_resplen = -1;
353 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
354 s->initial_ctx = ctx;
355 # ifndef OPENSSL_NO_EC
356 if (ctx->tlsext_ecpointformatlist) {
357 s->tlsext_ecpointformatlist =
358 BUF_memdup(ctx->tlsext_ecpointformatlist,
359 ctx->tlsext_ecpointformatlist_length);
360 if (!s->tlsext_ecpointformatlist)
362 s->tlsext_ecpointformatlist_length =
363 ctx->tlsext_ecpointformatlist_length;
365 if (ctx->tlsext_ellipticcurvelist) {
366 s->tlsext_ellipticcurvelist =
367 BUF_memdup(ctx->tlsext_ellipticcurvelist,
368 ctx->tlsext_ellipticcurvelist_length);
369 if (!s->tlsext_ellipticcurvelist)
371 s->tlsext_ellipticcurvelist_length =
372 ctx->tlsext_ellipticcurvelist_length;
375 # ifndef OPENSSL_NO_NEXTPROTONEG
376 s->next_proto_negotiated = NULL;
379 if (s->ctx->alpn_client_proto_list) {
380 s->alpn_client_proto_list =
381 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
382 if (s->alpn_client_proto_list == NULL)
384 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
385 s->ctx->alpn_client_proto_list_len);
386 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
390 s->verify_result = X509_V_OK;
392 s->method = ctx->method;
394 if (!s->method->ssl_new(s))
398 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
403 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
405 #ifndef OPENSSL_NO_PSK
406 s->psk_client_callback = ctx->psk_client_callback;
407 s->psk_server_callback = ctx->psk_server_callback;
414 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
418 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
419 unsigned int sid_ctx_len)
421 if (sid_ctx_len > sizeof ctx->sid_ctx) {
422 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
423 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
426 ctx->sid_ctx_length = sid_ctx_len;
427 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
432 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
433 unsigned int sid_ctx_len)
435 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
436 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
437 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
440 ssl->sid_ctx_length = sid_ctx_len;
441 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
446 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
448 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
449 ctx->generate_session_id = cb;
450 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
454 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
456 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
457 ssl->generate_session_id = cb;
458 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
462 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
466 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
467 * we can "construct" a session to give us the desired check - ie. to
468 * find if there's a session in the hash table that would conflict with
469 * any new session built out of this id/id_len and the ssl_version in use
474 if (id_len > sizeof r.session_id)
477 r.ssl_version = ssl->version;
478 r.session_id_length = id_len;
479 memcpy(r.session_id, id, id_len);
481 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
482 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
483 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
487 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
489 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
492 int SSL_set_purpose(SSL *s, int purpose)
494 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
497 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
499 return X509_VERIFY_PARAM_set_trust(s->param, trust);
502 int SSL_set_trust(SSL *s, int trust)
504 return X509_VERIFY_PARAM_set_trust(s->param, trust);
507 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
509 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
512 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
514 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
517 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
522 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
527 void SSL_certs_clear(SSL *s)
529 ssl_cert_clear_certs(s->cert);
532 void SSL_free(SSL *s)
539 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
547 fprintf(stderr, "SSL_free, bad reference count\n");
553 X509_VERIFY_PARAM_free(s->param);
555 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
557 if (s->bbio != NULL) {
558 /* If the buffering BIO is in place, pop it off */
559 if (s->bbio == s->wbio) {
560 s->wbio = BIO_pop(s->wbio);
565 BIO_free_all(s->rbio);
566 if (s->wbio != s->rbio)
567 BIO_free_all(s->wbio);
569 if (s->init_buf != NULL)
570 BUF_MEM_free(s->init_buf);
572 /* add extra stuff */
573 if (s->cipher_list != NULL)
574 sk_SSL_CIPHER_free(s->cipher_list);
575 if (s->cipher_list_by_id != NULL)
576 sk_SSL_CIPHER_free(s->cipher_list_by_id);
578 /* Make the next call work :-) */
579 if (s->session != NULL) {
580 ssl_clear_bad_session(s);
581 SSL_SESSION_free(s->session);
584 ssl_clear_cipher_ctx(s);
585 ssl_clear_hash_ctx(&s->read_hash);
586 ssl_clear_hash_ctx(&s->write_hash);
589 ssl_cert_free(s->cert);
590 /* Free up if allocated */
592 #ifndef OPENSSL_NO_TLSEXT
593 if (s->tlsext_hostname)
594 OPENSSL_free(s->tlsext_hostname);
596 SSL_CTX_free(s->initial_ctx);
597 # ifndef OPENSSL_NO_EC
598 if (s->tlsext_ecpointformatlist)
599 OPENSSL_free(s->tlsext_ecpointformatlist);
600 if (s->tlsext_ellipticcurvelist)
601 OPENSSL_free(s->tlsext_ellipticcurvelist);
602 # endif /* OPENSSL_NO_EC */
603 if (s->tlsext_ocsp_exts)
604 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
605 if (s->tlsext_ocsp_ids)
606 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
607 if (s->tlsext_ocsp_resp)
608 OPENSSL_free(s->tlsext_ocsp_resp);
609 if (s->alpn_client_proto_list)
610 OPENSSL_free(s->alpn_client_proto_list);
613 if (s->client_CA != NULL)
614 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
616 if (s->method != NULL)
617 s->method->ssl_free(s);
619 if (SSL3_BUFFER_is_initialised(RECORD_LAYER_get_rbuf(&s->rlayer)))
620 ssl3_release_read_buffer(s);
623 SSL_CTX_free(s->ctx);
625 #ifndef OPENSSL_NO_KRB5
626 if (s->kssl_ctx != NULL)
627 kssl_ctx_free(s->kssl_ctx);
628 #endif /* OPENSSL_NO_KRB5 */
630 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
631 if (s->next_proto_negotiated)
632 OPENSSL_free(s->next_proto_negotiated);
635 #ifndef OPENSSL_NO_SRTP
636 if (s->srtp_profiles)
637 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
643 void SSL_set_rbio(SSL *s, BIO *rbio)
646 BIO_free_all(s->rbio);
650 void SSL_set_wbio(SSL *s, BIO *wbio)
653 * If the output buffering BIO is still in place, remove it
655 if (s->bbio != NULL) {
656 if (s->wbio == s->bbio) {
657 s->wbio = s->wbio->next_bio;
658 s->bbio->next_bio = NULL;
661 if (s->wbio != wbio && s->rbio != s->wbio)
662 BIO_free_all(s->wbio);
666 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
668 SSL_set_wbio(s, wbio);
669 SSL_set_rbio(s, rbio);
672 BIO *SSL_get_rbio(const SSL *s)
677 BIO *SSL_get_wbio(const SSL *s)
682 int SSL_get_fd(const SSL *s)
684 return (SSL_get_rfd(s));
687 int SSL_get_rfd(const SSL *s)
693 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
699 int SSL_get_wfd(const SSL *s)
705 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
711 #ifndef OPENSSL_NO_SOCK
712 int SSL_set_fd(SSL *s, int fd)
717 bio = BIO_new(BIO_s_socket());
720 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
723 BIO_set_fd(bio, fd, BIO_NOCLOSE);
724 SSL_set_bio(s, bio, bio);
730 int SSL_set_wfd(SSL *s, int fd)
735 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
736 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
737 bio = BIO_new(BIO_s_socket());
740 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
743 BIO_set_fd(bio, fd, BIO_NOCLOSE);
744 SSL_set_bio(s, SSL_get_rbio(s), bio);
746 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
752 int SSL_set_rfd(SSL *s, int fd)
757 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
758 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
759 bio = BIO_new(BIO_s_socket());
762 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
765 BIO_set_fd(bio, fd, BIO_NOCLOSE);
766 SSL_set_bio(s, bio, SSL_get_wbio(s));
768 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
775 /* return length of latest Finished message we sent, copy to 'buf' */
776 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
781 ret = s->s3->tmp.finish_md_len;
784 memcpy(buf, s->s3->tmp.finish_md, count);
789 /* return length of latest Finished message we expected, copy to 'buf' */
790 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
795 ret = s->s3->tmp.peer_finish_md_len;
798 memcpy(buf, s->s3->tmp.peer_finish_md, count);
803 int SSL_get_verify_mode(const SSL *s)
805 return (s->verify_mode);
808 int SSL_get_verify_depth(const SSL *s)
810 return X509_VERIFY_PARAM_get_depth(s->param);
813 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
814 return (s->verify_callback);
817 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
819 return (ctx->verify_mode);
822 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
824 return X509_VERIFY_PARAM_get_depth(ctx->param);
827 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
828 return (ctx->default_verify_callback);
831 void SSL_set_verify(SSL *s, int mode,
832 int (*callback) (int ok, X509_STORE_CTX *ctx))
834 s->verify_mode = mode;
835 if (callback != NULL)
836 s->verify_callback = callback;
839 void SSL_set_verify_depth(SSL *s, int depth)
841 X509_VERIFY_PARAM_set_depth(s->param, depth);
844 void SSL_set_read_ahead(SSL *s, int yes)
846 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
849 int SSL_get_read_ahead(const SSL *s)
851 return RECORD_LAYER_get_read_ahead(&s->rlayer);
854 int SSL_pending(const SSL *s)
857 * SSL_pending cannot work properly if read-ahead is enabled
858 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
859 * impossible to fix since SSL_pending cannot report errors that may be
860 * observed while scanning the new data. (Note that SSL_pending() is
861 * often used as a boolean value, so we'd better not return -1.)
863 return (s->method->ssl_pending(s));
866 X509 *SSL_get_peer_certificate(const SSL *s)
870 if ((s == NULL) || (s->session == NULL))
873 r = s->session->peer;
878 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
883 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
887 if ((s == NULL) || (s->session == NULL)
888 || (s->session->sess_cert == NULL))
891 r = s->session->sess_cert->cert_chain;
894 * If we are a client, cert_chain includes the peer's own certificate; if
895 * we are a server, it does not.
902 * Now in theory, since the calling process own 't' it should be safe to
903 * modify. We need to be able to read f without being hassled
905 int SSL_copy_session_id(SSL *t, const SSL *f)
907 /* Do we need to to SSL locking? */
908 if(!SSL_set_session(t, SSL_get_session(f))) {
913 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
915 if (t->method != f->method) {
916 t->method->ssl_free(t); /* cleanup current */
917 t->method = f->method; /* change method */
918 t->method->ssl_new(t); /* setup new */
921 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
922 ssl_cert_free(t->cert);
924 if(!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
931 /* Fix this so it checks all the valid key/cert options */
932 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
935 (ctx->cert->key->x509 == NULL)) {
936 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
937 SSL_R_NO_CERTIFICATE_ASSIGNED);
940 if (ctx->cert->key->privatekey == NULL) {
941 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
942 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
945 return (X509_check_private_key
946 (ctx->cert->key->x509, ctx->cert->key->privatekey));
949 /* Fix this function so that it takes an optional type parameter */
950 int SSL_check_private_key(const SSL *ssl)
953 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
956 if (ssl->cert->key->x509 == NULL) {
957 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
960 if (ssl->cert->key->privatekey == NULL) {
961 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
964 return (X509_check_private_key(ssl->cert->key->x509,
965 ssl->cert->key->privatekey));
968 int SSL_accept(SSL *s)
970 if (s->handshake_func == 0)
971 /* Not properly initialized yet */
972 SSL_set_accept_state(s);
974 return (s->method->ssl_accept(s));
977 int SSL_connect(SSL *s)
979 if (s->handshake_func == 0)
980 /* Not properly initialized yet */
981 SSL_set_connect_state(s);
983 return (s->method->ssl_connect(s));
986 long SSL_get_default_timeout(const SSL *s)
988 return (s->method->get_timeout());
991 int SSL_read(SSL *s, void *buf, int num)
993 if (s->handshake_func == 0) {
994 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
998 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
999 s->rwstate = SSL_NOTHING;
1002 return (s->method->ssl_read(s, buf, num));
1005 int SSL_peek(SSL *s, void *buf, int num)
1007 if (s->handshake_func == 0) {
1008 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1012 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1015 return (s->method->ssl_peek(s, buf, num));
1018 int SSL_write(SSL *s, const void *buf, int num)
1020 if (s->handshake_func == 0) {
1021 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1025 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1026 s->rwstate = SSL_NOTHING;
1027 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1030 return (s->method->ssl_write(s, buf, num));
1033 int SSL_shutdown(SSL *s)
1036 * Note that this function behaves differently from what one might
1037 * expect. Return values are 0 for no success (yet), 1 for success; but
1038 * calling it once is usually not enough, even if blocking I/O is used
1039 * (see ssl3_shutdown).
1042 if (s->handshake_func == 0) {
1043 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1047 if ((s != NULL) && !SSL_in_init(s))
1048 return (s->method->ssl_shutdown(s));
1053 int SSL_renegotiate(SSL *s)
1055 if (s->renegotiate == 0)
1060 return (s->method->ssl_renegotiate(s));
1063 int SSL_renegotiate_abbreviated(SSL *s)
1065 if (s->renegotiate == 0)
1070 return (s->method->ssl_renegotiate(s));
1073 int SSL_renegotiate_pending(SSL *s)
1076 * becomes true when negotiation is requested; false again once a
1077 * handshake has finished
1079 return (s->renegotiate != 0);
1082 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1087 case SSL_CTRL_GET_READ_AHEAD:
1088 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1089 case SSL_CTRL_SET_READ_AHEAD:
1090 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1091 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1094 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1095 s->msg_callback_arg = parg;
1098 case SSL_CTRL_OPTIONS:
1099 return (s->options |= larg);
1100 case SSL_CTRL_CLEAR_OPTIONS:
1101 return (s->options &= ~larg);
1103 return (s->mode |= larg);
1104 case SSL_CTRL_CLEAR_MODE:
1105 return (s->mode &= ~larg);
1106 case SSL_CTRL_GET_MAX_CERT_LIST:
1107 return (s->max_cert_list);
1108 case SSL_CTRL_SET_MAX_CERT_LIST:
1109 l = s->max_cert_list;
1110 s->max_cert_list = larg;
1112 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1113 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1115 s->max_send_fragment = larg;
1117 case SSL_CTRL_GET_RI_SUPPORT:
1119 return s->s3->send_connection_binding;
1122 case SSL_CTRL_CERT_FLAGS:
1123 return (s->cert->cert_flags |= larg);
1124 case SSL_CTRL_CLEAR_CERT_FLAGS:
1125 return (s->cert->cert_flags &= ~larg);
1127 case SSL_CTRL_GET_RAW_CIPHERLIST:
1129 if (s->cert->ciphers_raw == NULL)
1131 *(unsigned char **)parg = s->cert->ciphers_raw;
1132 return (int)s->cert->ciphers_rawlen;
1134 return ssl_put_cipher_by_char(s, NULL, NULL);
1135 case SSL_CTRL_GET_EXTMS_SUPPORT:
1136 if (!s->session || SSL_in_init(s) || s->in_handshake)
1138 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1143 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1147 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1150 case SSL_CTRL_SET_MSG_CALLBACK:
1151 s->msg_callback = (void (*)
1152 (int write_p, int version, int content_type,
1153 const void *buf, size_t len, SSL *ssl,
1158 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1162 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1164 return ctx->sessions;
1167 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1170 /* For some cases with ctx == NULL perform syntax checks */
1173 #ifndef OPENSSL_NO_EC
1174 case SSL_CTRL_SET_CURVES_LIST:
1175 return tls1_set_curves_list(NULL, NULL, parg);
1177 case SSL_CTRL_SET_SIGALGS_LIST:
1178 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1179 return tls1_set_sigalgs_list(NULL, parg, 0);
1186 case SSL_CTRL_GET_READ_AHEAD:
1187 return (ctx->read_ahead);
1188 case SSL_CTRL_SET_READ_AHEAD:
1189 l = ctx->read_ahead;
1190 ctx->read_ahead = larg;
1193 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1194 ctx->msg_callback_arg = parg;
1197 case SSL_CTRL_GET_MAX_CERT_LIST:
1198 return (ctx->max_cert_list);
1199 case SSL_CTRL_SET_MAX_CERT_LIST:
1200 l = ctx->max_cert_list;
1201 ctx->max_cert_list = larg;
1204 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1205 l = ctx->session_cache_size;
1206 ctx->session_cache_size = larg;
1208 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1209 return (ctx->session_cache_size);
1210 case SSL_CTRL_SET_SESS_CACHE_MODE:
1211 l = ctx->session_cache_mode;
1212 ctx->session_cache_mode = larg;
1214 case SSL_CTRL_GET_SESS_CACHE_MODE:
1215 return (ctx->session_cache_mode);
1217 case SSL_CTRL_SESS_NUMBER:
1218 return (lh_SSL_SESSION_num_items(ctx->sessions));
1219 case SSL_CTRL_SESS_CONNECT:
1220 return (ctx->stats.sess_connect);
1221 case SSL_CTRL_SESS_CONNECT_GOOD:
1222 return (ctx->stats.sess_connect_good);
1223 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1224 return (ctx->stats.sess_connect_renegotiate);
1225 case SSL_CTRL_SESS_ACCEPT:
1226 return (ctx->stats.sess_accept);
1227 case SSL_CTRL_SESS_ACCEPT_GOOD:
1228 return (ctx->stats.sess_accept_good);
1229 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1230 return (ctx->stats.sess_accept_renegotiate);
1231 case SSL_CTRL_SESS_HIT:
1232 return (ctx->stats.sess_hit);
1233 case SSL_CTRL_SESS_CB_HIT:
1234 return (ctx->stats.sess_cb_hit);
1235 case SSL_CTRL_SESS_MISSES:
1236 return (ctx->stats.sess_miss);
1237 case SSL_CTRL_SESS_TIMEOUTS:
1238 return (ctx->stats.sess_timeout);
1239 case SSL_CTRL_SESS_CACHE_FULL:
1240 return (ctx->stats.sess_cache_full);
1241 case SSL_CTRL_OPTIONS:
1242 return (ctx->options |= larg);
1243 case SSL_CTRL_CLEAR_OPTIONS:
1244 return (ctx->options &= ~larg);
1246 return (ctx->mode |= larg);
1247 case SSL_CTRL_CLEAR_MODE:
1248 return (ctx->mode &= ~larg);
1249 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1250 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1252 ctx->max_send_fragment = larg;
1254 case SSL_CTRL_CERT_FLAGS:
1255 return (ctx->cert->cert_flags |= larg);
1256 case SSL_CTRL_CLEAR_CERT_FLAGS:
1257 return (ctx->cert->cert_flags &= ~larg);
1259 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1263 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1266 case SSL_CTRL_SET_MSG_CALLBACK:
1267 ctx->msg_callback = (void (*)
1268 (int write_p, int version, int content_type,
1269 const void *buf, size_t len, SSL *ssl,
1274 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1278 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1286 return ((l > 0) ? 1 : -1);
1289 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1290 const SSL_CIPHER *const *bp)
1294 l = (*ap)->id - (*bp)->id;
1298 return ((l > 0) ? 1 : -1);
1301 /** return a STACK of the ciphers available for the SSL and in order of
1303 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1306 if (s->cipher_list != NULL) {
1307 return (s->cipher_list);
1308 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1309 return (s->ctx->cipher_list);
1315 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1317 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1319 ciphers = SSL_get_ciphers(s);
1322 ssl_set_client_disabled(s);
1323 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1324 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1325 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1327 sk = sk_SSL_CIPHER_new_null();
1330 if (!sk_SSL_CIPHER_push(sk, c)) {
1331 sk_SSL_CIPHER_free(sk);
1339 /** return a STACK of the ciphers available for the SSL and in order of
1341 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1344 if (s->cipher_list_by_id != NULL) {
1345 return (s->cipher_list_by_id);
1346 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1347 return (s->ctx->cipher_list_by_id);
1353 /** The old interface to get the same thing as SSL_get_ciphers() */
1354 const char *SSL_get_cipher_list(const SSL *s, int n)
1357 STACK_OF(SSL_CIPHER) *sk;
1361 sk = SSL_get_ciphers(s);
1362 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1364 c = sk_SSL_CIPHER_value(sk, n);
1370 /** specify the ciphers to be used by default by the SSL_CTX */
1371 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1373 STACK_OF(SSL_CIPHER) *sk;
1375 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1376 &ctx->cipher_list_by_id, str, ctx->cert);
1378 * ssl_create_cipher_list may return an empty stack if it was unable to
1379 * find a cipher matching the given rule string (for example if the rule
1380 * string specifies a cipher which has been disabled). This is not an
1381 * error as far as ssl_create_cipher_list is concerned, and hence
1382 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1386 else if (sk_SSL_CIPHER_num(sk) == 0) {
1387 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1393 /** specify the ciphers to be used by the SSL */
1394 int SSL_set_cipher_list(SSL *s, const char *str)
1396 STACK_OF(SSL_CIPHER) *sk;
1398 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1399 &s->cipher_list_by_id, str, s->cert);
1400 /* see comment in SSL_CTX_set_cipher_list */
1403 else if (sk_SSL_CIPHER_num(sk) == 0) {
1404 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1410 /* works well for SSLv2, not so good for SSLv3 */
1411 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1414 STACK_OF(SSL_CIPHER) *sk;
1418 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1422 sk = s->session->ciphers;
1424 if (sk_SSL_CIPHER_num(sk) == 0)
1427 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1430 c = sk_SSL_CIPHER_value(sk, i);
1431 n = strlen(c->name);
1447 int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
1449 int (*put_cb) (const SSL_CIPHER *,
1455 int empty_reneg_info_scsv = !s->renegotiate;
1456 /* Set disabled masks for this session */
1457 ssl_set_client_disabled(s);
1463 put_cb = s->method->put_cipher_by_char;
1465 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1466 c = sk_SSL_CIPHER_value(sk, i);
1467 /* Skip disabled ciphers */
1468 if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
1470 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1471 if (c->id == SSL3_CK_SCSV) {
1472 if (!empty_reneg_info_scsv)
1475 empty_reneg_info_scsv = 0;
1482 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1486 if (empty_reneg_info_scsv) {
1487 static SSL_CIPHER scsv = {
1488 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1490 j = put_cb(&scsv, p);
1492 #ifdef OPENSSL_RI_DEBUG
1494 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1497 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
1498 static SSL_CIPHER scsv = {
1499 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1501 j = put_cb(&scsv, p);
1509 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
1511 STACK_OF(SSL_CIPHER) **skp)
1513 const SSL_CIPHER *c;
1514 STACK_OF(SSL_CIPHER) *sk;
1518 s->s3->send_connection_binding = 0;
1520 n = ssl_put_cipher_by_char(s, NULL, NULL);
1521 if (n == 0 || (num % n) != 0) {
1522 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1523 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1526 if ((skp == NULL) || (*skp == NULL))
1527 sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */
1530 sk_SSL_CIPHER_zero(sk);
1533 if (s->cert->ciphers_raw)
1534 OPENSSL_free(s->cert->ciphers_raw);
1535 s->cert->ciphers_raw = BUF_memdup(p, num);
1536 if (s->cert->ciphers_raw == NULL) {
1537 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1540 s->cert->ciphers_rawlen = (size_t)num;
1542 for (i = 0; i < num; i += n) {
1543 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1544 if (s->s3 && (n != 3 || !p[0]) &&
1545 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1546 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) {
1547 /* SCSV fatal if renegotiating */
1548 if (s->renegotiate) {
1549 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1550 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1551 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
1554 s->s3->send_connection_binding = 1;
1556 #ifdef OPENSSL_RI_DEBUG
1557 fprintf(stderr, "SCSV received by server\n");
1562 /* Check for TLS_FALLBACK_SCSV */
1563 if ((n != 3 || !p[0]) &&
1564 (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1565 (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) {
1567 * The SCSV indicates that the client previously tried a higher
1568 * version. Fail if the current version is an unexpected
1571 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) {
1572 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1573 SSL_R_INAPPROPRIATE_FALLBACK);
1575 ssl3_send_alert(s, SSL3_AL_FATAL,
1576 SSL_AD_INAPPROPRIATE_FALLBACK);
1583 c = ssl_get_cipher_by_char(s, p);
1586 if (!sk_SSL_CIPHER_push(sk, c)) {
1587 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1597 if ((skp == NULL) || (*skp == NULL))
1598 sk_SSL_CIPHER_free(sk);
1602 #ifndef OPENSSL_NO_TLSEXT
1603 /** return a servername extension value if provided in Client Hello, or NULL.
1604 * So far, only host_name types are defined (RFC 3546).
1607 const char *SSL_get_servername(const SSL *s, const int type)
1609 if (type != TLSEXT_NAMETYPE_host_name)
1612 return s->session && !s->tlsext_hostname ?
1613 s->session->tlsext_hostname : s->tlsext_hostname;
1616 int SSL_get_servername_type(const SSL *s)
1619 && (!s->tlsext_hostname ? s->session->
1620 tlsext_hostname : s->tlsext_hostname))
1621 return TLSEXT_NAMETYPE_host_name;
1626 * SSL_select_next_proto implements the standard protocol selection. It is
1627 * expected that this function is called from the callback set by
1628 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1629 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1630 * not included in the length. A byte string of length 0 is invalid. No byte
1631 * string may be truncated. The current, but experimental algorithm for
1632 * selecting the protocol is: 1) If the server doesn't support NPN then this
1633 * is indicated to the callback. In this case, the client application has to
1634 * abort the connection or have a default application level protocol. 2) If
1635 * the server supports NPN, but advertises an empty list then the client
1636 * selects the first protcol in its list, but indicates via the API that this
1637 * fallback case was enacted. 3) Otherwise, the client finds the first
1638 * protocol in the server's list that it supports and selects this protocol.
1639 * This is because it's assumed that the server has better information about
1640 * which protocol a client should use. 4) If the client doesn't support any
1641 * of the server's advertised protocols, then this is treated the same as
1642 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1643 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1645 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1646 const unsigned char *server,
1647 unsigned int server_len,
1648 const unsigned char *client,
1649 unsigned int client_len)
1652 const unsigned char *result;
1653 int status = OPENSSL_NPN_UNSUPPORTED;
1656 * For each protocol in server preference order, see if we support it.
1658 for (i = 0; i < server_len;) {
1659 for (j = 0; j < client_len;) {
1660 if (server[i] == client[j] &&
1661 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1662 /* We found a match */
1663 result = &server[i];
1664 status = OPENSSL_NPN_NEGOTIATED;
1674 /* There's no overlap between our protocols and the server's list. */
1676 status = OPENSSL_NPN_NO_OVERLAP;
1679 *out = (unsigned char *)result + 1;
1680 *outlen = result[0];
1684 # ifndef OPENSSL_NO_NEXTPROTONEG
1686 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1687 * client's requested protocol for this connection and returns 0. If the
1688 * client didn't request any protocol, then *data is set to NULL. Note that
1689 * the client can request any protocol it chooses. The value returned from
1690 * this function need not be a member of the list of supported protocols
1691 * provided by the callback.
1693 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1696 *data = s->next_proto_negotiated;
1700 *len = s->next_proto_negotiated_len;
1705 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1706 * a TLS server needs a list of supported protocols for Next Protocol
1707 * Negotiation. The returned list must be in wire format. The list is
1708 * returned by setting |out| to point to it and |outlen| to its length. This
1709 * memory will not be modified, but one should assume that the SSL* keeps a
1710 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1711 * wishes to advertise. Otherwise, no such extension will be included in the
1714 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1715 int (*cb) (SSL *ssl,
1718 unsigned int *outlen,
1719 void *arg), void *arg)
1721 ctx->next_protos_advertised_cb = cb;
1722 ctx->next_protos_advertised_cb_arg = arg;
1726 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1727 * client needs to select a protocol from the server's provided list. |out|
1728 * must be set to point to the selected protocol (which may be within |in|).
1729 * The length of the protocol name must be written into |outlen|. The
1730 * server's advertised protocols are provided in |in| and |inlen|. The
1731 * callback can assume that |in| is syntactically valid. The client must
1732 * select a protocol. It is fatal to the connection if this callback returns
1733 * a value other than SSL_TLSEXT_ERR_OK.
1735 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1736 int (*cb) (SSL *s, unsigned char **out,
1737 unsigned char *outlen,
1738 const unsigned char *in,
1740 void *arg), void *arg)
1742 ctx->next_proto_select_cb = cb;
1743 ctx->next_proto_select_cb_arg = arg;
1748 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1749 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1750 * length-prefixed strings). Returns 0 on success.
1752 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1753 unsigned protos_len)
1755 if (ctx->alpn_client_proto_list)
1756 OPENSSL_free(ctx->alpn_client_proto_list);
1758 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1759 if (!ctx->alpn_client_proto_list)
1761 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1762 ctx->alpn_client_proto_list_len = protos_len;
1768 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1769 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1770 * length-prefixed strings). Returns 0 on success.
1772 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1773 unsigned protos_len)
1775 if (ssl->alpn_client_proto_list)
1776 OPENSSL_free(ssl->alpn_client_proto_list);
1778 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1779 if (!ssl->alpn_client_proto_list)
1781 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1782 ssl->alpn_client_proto_list_len = protos_len;
1788 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1789 * called during ClientHello processing in order to select an ALPN protocol
1790 * from the client's list of offered protocols.
1792 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1793 int (*cb) (SSL *ssl,
1794 const unsigned char **out,
1795 unsigned char *outlen,
1796 const unsigned char *in,
1798 void *arg), void *arg)
1800 ctx->alpn_select_cb = cb;
1801 ctx->alpn_select_cb_arg = arg;
1805 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1806 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1807 * (not including the leading length-prefix byte). If the server didn't
1808 * respond with a negotiated protocol then |*len| will be zero.
1810 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1815 *data = ssl->s3->alpn_selected;
1819 *len = ssl->s3->alpn_selected_len;
1822 #endif /* !OPENSSL_NO_TLSEXT */
1824 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1825 const char *label, size_t llen,
1826 const unsigned char *p, size_t plen,
1829 if (s->version < TLS1_VERSION)
1832 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1837 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1842 ((unsigned int)a->session_id[0]) |
1843 ((unsigned int)a->session_id[1] << 8L) |
1844 ((unsigned long)a->session_id[2] << 16L) |
1845 ((unsigned long)a->session_id[3] << 24L);
1850 * NB: If this function (or indeed the hash function which uses a sort of
1851 * coarser function than this one) is changed, ensure
1852 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1853 * being able to construct an SSL_SESSION that will collide with any existing
1854 * session with a matching session ID.
1856 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1858 if (a->ssl_version != b->ssl_version)
1860 if (a->session_id_length != b->session_id_length)
1862 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1866 * These wrapper functions should remain rather than redeclaring
1867 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1868 * variable. The reason is that the functions aren't static, they're exposed
1871 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1872 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1874 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1876 SSL_CTX *ret = NULL;
1879 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1883 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1884 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1888 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1889 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1892 ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1896 memset(ret, 0, sizeof(SSL_CTX));
1900 ret->cert_store = NULL;
1901 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1902 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1903 ret->session_cache_head = NULL;
1904 ret->session_cache_tail = NULL;
1906 /* We take the system default */
1907 ret->session_timeout = meth->get_timeout();
1909 ret->new_session_cb = 0;
1910 ret->remove_session_cb = 0;
1911 ret->get_session_cb = 0;
1912 ret->generate_session_id = 0;
1914 memset((char *)&ret->stats, 0, sizeof(ret->stats));
1916 ret->references = 1;
1917 ret->quiet_shutdown = 0;
1918 ret->info_callback = NULL;
1919 ret->app_verify_callback = 0;
1920 ret->app_verify_arg = NULL;
1921 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1922 ret->read_ahead = 0;
1923 ret->msg_callback = 0;
1924 ret->msg_callback_arg = NULL;
1925 ret->verify_mode = SSL_VERIFY_NONE;
1926 ret->sid_ctx_length = 0;
1927 ret->default_verify_callback = NULL;
1928 if ((ret->cert = ssl_cert_new()) == NULL)
1931 ret->default_passwd_callback = 0;
1932 ret->default_passwd_callback_userdata = NULL;
1933 ret->client_cert_cb = 0;
1934 ret->app_gen_cookie_cb = 0;
1935 ret->app_verify_cookie_cb = 0;
1937 ret->sessions = lh_SSL_SESSION_new();
1938 if (ret->sessions == NULL)
1940 ret->cert_store = X509_STORE_new();
1941 if (ret->cert_store == NULL)
1944 if(!ssl_create_cipher_list(ret->method,
1945 &ret->cipher_list, &ret->cipher_list_by_id,
1946 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1947 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1948 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1952 ret->param = X509_VERIFY_PARAM_new();
1956 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1957 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1960 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1961 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1965 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1968 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1970 ret->extra_certs = NULL;
1971 /* No compression for DTLS */
1972 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1973 ret->comp_methods = SSL_COMP_get_compression_methods();
1975 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1977 #ifndef OPENSSL_NO_TLSEXT
1978 ret->tlsext_servername_callback = 0;
1979 ret->tlsext_servername_arg = NULL;
1980 /* Setup RFC4507 ticket keys */
1981 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1982 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1983 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1984 ret->options |= SSL_OP_NO_TICKET;
1986 ret->tlsext_status_cb = 0;
1987 ret->tlsext_status_arg = NULL;
1989 # ifndef OPENSSL_NO_NEXTPROTONEG
1990 ret->next_protos_advertised_cb = 0;
1991 ret->next_proto_select_cb = 0;
1994 #ifndef OPENSSL_NO_PSK
1995 ret->psk_identity_hint = NULL;
1996 ret->psk_client_callback = NULL;
1997 ret->psk_server_callback = NULL;
1999 #ifndef OPENSSL_NO_SRP
2000 if(!SSL_CTX_SRP_CTX_init(ret))
2003 #ifndef OPENSSL_NO_ENGINE
2004 ret->client_cert_engine = NULL;
2005 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2006 # define eng_strx(x) #x
2007 # define eng_str(x) eng_strx(x)
2008 /* Use specific client engine automatically... ignore errors */
2011 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2014 ENGINE_load_builtin_engines();
2015 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2017 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2023 * Default is to connect to non-RI servers. When RI is more widely
2024 * deployed might change this.
2026 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2030 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2037 void SSL_CTX_free(SSL_CTX *a)
2044 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2046 REF_PRINT("SSL_CTX", a);
2052 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2058 X509_VERIFY_PARAM_free(a->param);
2061 * Free internal session cache. However: the remove_cb() may reference
2062 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2063 * after the sessions were flushed.
2064 * As the ex_data handling routines might also touch the session cache,
2065 * the most secure solution seems to be: empty (flush) the cache, then
2066 * free ex_data, then finally free the cache.
2067 * (See ticket [openssl.org #212].)
2069 if (a->sessions != NULL)
2070 SSL_CTX_flush_sessions(a, 0);
2072 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2074 if (a->sessions != NULL)
2075 lh_SSL_SESSION_free(a->sessions);
2077 if (a->cert_store != NULL)
2078 X509_STORE_free(a->cert_store);
2079 if (a->cipher_list != NULL)
2080 sk_SSL_CIPHER_free(a->cipher_list);
2081 if (a->cipher_list_by_id != NULL)
2082 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2083 if (a->cert != NULL)
2084 ssl_cert_free(a->cert);
2085 if (a->client_CA != NULL)
2086 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2087 if (a->extra_certs != NULL)
2088 sk_X509_pop_free(a->extra_certs, X509_free);
2089 a->comp_methods = NULL;
2091 #ifndef OPENSSL_NO_SRTP
2092 if (a->srtp_profiles)
2093 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2096 #ifndef OPENSSL_NO_PSK
2097 if (a->psk_identity_hint)
2098 OPENSSL_free(a->psk_identity_hint);
2100 #ifndef OPENSSL_NO_SRP
2101 SSL_CTX_SRP_CTX_free(a);
2103 #ifndef OPENSSL_NO_ENGINE
2104 if (a->client_cert_engine)
2105 ENGINE_finish(a->client_cert_engine);
2108 #ifndef OPENSSL_NO_TLSEXT
2109 # ifndef OPENSSL_NO_EC
2110 if (a->tlsext_ecpointformatlist)
2111 OPENSSL_free(a->tlsext_ecpointformatlist);
2112 if (a->tlsext_ellipticcurvelist)
2113 OPENSSL_free(a->tlsext_ellipticcurvelist);
2114 # endif /* OPENSSL_NO_EC */
2115 if (a->alpn_client_proto_list != NULL)
2116 OPENSSL_free(a->alpn_client_proto_list);
2122 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2124 ctx->default_passwd_callback = cb;
2127 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2129 ctx->default_passwd_callback_userdata = u;
2132 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2133 int (*cb) (X509_STORE_CTX *, void *),
2136 ctx->app_verify_callback = cb;
2137 ctx->app_verify_arg = arg;
2140 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2141 int (*cb) (int, X509_STORE_CTX *))
2143 ctx->verify_mode = mode;
2144 ctx->default_verify_callback = cb;
2147 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2149 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2152 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2155 ssl_cert_set_cert_cb(c->cert, cb, arg);
2158 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2160 ssl_cert_set_cert_cb(s->cert, cb, arg);
2163 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2166 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
2167 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
2168 int rsa_tmp_export, dh_tmp_export, kl;
2169 unsigned long mask_k, mask_a, emask_k, emask_a;
2170 #ifndef OPENSSL_NO_EC
2171 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2172 int have_ecdh_tmp, ecdh_ok;
2174 EVP_PKEY *ecc_pkey = NULL;
2175 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2180 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
2182 #ifndef OPENSSL_NO_RSA
2183 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2184 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
2185 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
2187 rsa_tmp = rsa_tmp_export = 0;
2189 #ifndef OPENSSL_NO_DH
2190 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2191 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
2193 && DH_size(c->dh_tmp) * 8 <= kl));
2195 dh_tmp = dh_tmp_export = 0;
2198 #ifndef OPENSSL_NO_EC
2199 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2201 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
2202 rsa_enc = cpk->valid_flags & CERT_PKEY_VALID;
2203 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2204 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2205 rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2206 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2207 dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2208 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
2209 dh_rsa = cpk->valid_flags & CERT_PKEY_VALID;
2210 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2211 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
2212 /* FIX THIS EAY EAY EAY */
2213 dh_dsa = cpk->valid_flags & CERT_PKEY_VALID;
2214 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2215 cpk = &(c->pkeys[SSL_PKEY_ECC]);
2216 #ifndef OPENSSL_NO_EC
2217 have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID;
2226 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2227 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2228 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2231 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2232 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2233 mask_k |= SSL_kGOST;
2234 mask_a |= SSL_aGOST01;
2236 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2237 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2238 mask_k |= SSL_kGOST;
2239 mask_a |= SSL_aGOST94;
2242 if (rsa_enc || (rsa_tmp && rsa_sign))
2244 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2245 emask_k |= SSL_kRSA;
2248 emask_k |= SSL_kDHE;
2256 emask_k |= SSL_kDHr;
2261 emask_k |= SSL_kDHd;
2263 if (emask_k & (SSL_kDHr | SSL_kDHd))
2266 if (rsa_enc || rsa_sign) {
2268 emask_a |= SSL_aRSA;
2273 emask_a |= SSL_aDSS;
2276 mask_a |= SSL_aNULL;
2277 emask_a |= SSL_aNULL;
2279 #ifndef OPENSSL_NO_KRB5
2280 mask_k |= SSL_kKRB5;
2281 mask_a |= SSL_aKRB5;
2282 emask_k |= SSL_kKRB5;
2283 emask_a |= SSL_aKRB5;
2287 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2288 * depending on the key usage extension.
2290 #ifndef OPENSSL_NO_EC
2291 if (have_ecc_cert) {
2292 cpk = &c->pkeys[SSL_PKEY_ECC];
2294 /* This call populates extension flags (ex_flags) */
2295 X509_check_purpose(x, -1, 0);
2296 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2297 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2298 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2299 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2300 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2302 ecc_pkey = X509_get_pubkey(x);
2303 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2304 EVP_PKEY_free(ecc_pkey);
2305 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2306 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2307 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2311 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2312 mask_k |= SSL_kECDHr;
2313 mask_a |= SSL_aECDH;
2314 if (ecc_pkey_size <= 163) {
2315 emask_k |= SSL_kECDHr;
2316 emask_a |= SSL_aECDH;
2320 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2321 mask_k |= SSL_kECDHe;
2322 mask_a |= SSL_aECDH;
2323 if (ecc_pkey_size <= 163) {
2324 emask_k |= SSL_kECDHe;
2325 emask_a |= SSL_aECDH;
2330 mask_a |= SSL_aECDSA;
2331 emask_a |= SSL_aECDSA;
2336 #ifndef OPENSSL_NO_EC
2337 if (have_ecdh_tmp) {
2338 mask_k |= SSL_kECDHE;
2339 emask_k |= SSL_kECDHE;
2343 #ifndef OPENSSL_NO_PSK
2346 emask_k |= SSL_kPSK;
2347 emask_a |= SSL_aPSK;
2352 c->export_mask_k = emask_k;
2353 c->export_mask_a = emask_a;
2357 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2358 #define ku_reject(x, usage) \
2359 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2361 #ifndef OPENSSL_NO_EC
2363 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2365 unsigned long alg_k, alg_a;
2366 EVP_PKEY *pkey = NULL;
2368 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2369 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2371 alg_k = cs->algorithm_mkey;
2372 alg_a = cs->algorithm_auth;
2374 if (SSL_C_IS_EXPORT(cs)) {
2375 /* ECDH key length in export ciphers must be <= 163 bits */
2376 pkey = X509_get_pubkey(x);
2379 keysize = EVP_PKEY_bits(pkey);
2380 EVP_PKEY_free(pkey);
2385 /* This call populates the ex_flags field correctly */
2386 X509_check_purpose(x, -1, 0);
2387 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2388 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2389 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2391 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2392 /* key usage, if present, must allow key agreement */
2393 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2394 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2395 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2398 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2399 /* signature alg must be ECDSA */
2400 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2401 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2402 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2406 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2407 /* signature alg must be RSA */
2409 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2410 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2411 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2416 if (alg_a & SSL_aECDSA) {
2417 /* key usage, if present, must allow signing */
2418 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2419 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2420 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2425 return 1; /* all checks are ok */
2430 static int ssl_get_server_cert_index(const SSL *s)
2433 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2434 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2435 idx = SSL_PKEY_RSA_SIGN;
2437 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2441 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2447 if (!s->s3 || !s->s3->tmp.new_cipher)
2449 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2451 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2453 * Broken protocol test: return last used certificate: which may mismatch
2456 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2460 i = ssl_get_server_cert_index(s);
2462 /* This may or may not be an error. */
2467 return &c->pkeys[i];
2470 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2473 unsigned long alg_a;
2477 alg_a = cipher->algorithm_auth;
2480 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2482 * Broken protocol test: use last key: which may mismatch the one
2485 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2486 idx = c->key - c->pkeys;
2490 if ((alg_a & SSL_aDSS) &&
2491 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2492 idx = SSL_PKEY_DSA_SIGN;
2493 else if (alg_a & SSL_aRSA) {
2494 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2495 idx = SSL_PKEY_RSA_SIGN;
2496 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2497 idx = SSL_PKEY_RSA_ENC;
2498 } else if ((alg_a & SSL_aECDSA) &&
2499 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2502 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2506 *pmd = c->pkeys[idx].digest;
2507 return c->pkeys[idx].privatekey;
2510 #ifndef OPENSSL_NO_TLSEXT
2511 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2512 size_t *serverinfo_length)
2516 *serverinfo_length = 0;
2519 i = ssl_get_server_cert_index(s);
2523 if (c->pkeys[i].serverinfo == NULL)
2526 *serverinfo = c->pkeys[i].serverinfo;
2527 *serverinfo_length = c->pkeys[i].serverinfo_length;
2532 void ssl_update_cache(SSL *s, int mode)
2537 * If the session_id_length is 0, we are not supposed to cache it, and it
2538 * would be rather hard to do anyway :-)
2540 if (s->session->session_id_length == 0)
2543 i = s->session_ctx->session_cache_mode;
2544 if ((i & mode) && (!s->hit)
2545 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2546 || SSL_CTX_add_session(s->session_ctx, s->session))
2547 && (s->session_ctx->new_session_cb != NULL)) {
2548 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2549 if (!s->session_ctx->new_session_cb(s, s->session))
2550 SSL_SESSION_free(s->session);
2553 /* auto flush every 255 connections */
2554 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2555 if ((((mode & SSL_SESS_CACHE_CLIENT)
2556 ? s->session_ctx->stats.sess_connect_good
2557 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2558 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2563 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2568 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2573 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2578 if (s->method != meth) {
2579 if (s->handshake_func != NULL)
2580 conn = (s->handshake_func == s->method->ssl_connect);
2582 if (s->method->version == meth->version)
2585 s->method->ssl_free(s);
2587 ret = s->method->ssl_new(s);
2591 s->handshake_func = meth->ssl_connect;
2593 s->handshake_func = meth->ssl_accept;
2598 int SSL_get_error(const SSL *s, int i)
2605 return (SSL_ERROR_NONE);
2608 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2609 * where we do encode the error
2611 if ((l = ERR_peek_error()) != 0) {
2612 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2613 return (SSL_ERROR_SYSCALL);
2615 return (SSL_ERROR_SSL);
2618 if ((i < 0) && SSL_want_read(s)) {
2619 bio = SSL_get_rbio(s);
2620 if (BIO_should_read(bio))
2621 return (SSL_ERROR_WANT_READ);
2622 else if (BIO_should_write(bio))
2624 * This one doesn't make too much sense ... We never try to write
2625 * to the rbio, and an application program where rbio and wbio
2626 * are separate couldn't even know what it should wait for.
2627 * However if we ever set s->rwstate incorrectly (so that we have
2628 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2629 * wbio *are* the same, this test works around that bug; so it
2630 * might be safer to keep it.
2632 return (SSL_ERROR_WANT_WRITE);
2633 else if (BIO_should_io_special(bio)) {
2634 reason = BIO_get_retry_reason(bio);
2635 if (reason == BIO_RR_CONNECT)
2636 return (SSL_ERROR_WANT_CONNECT);
2637 else if (reason == BIO_RR_ACCEPT)
2638 return (SSL_ERROR_WANT_ACCEPT);
2640 return (SSL_ERROR_SYSCALL); /* unknown */
2644 if ((i < 0) && SSL_want_write(s)) {
2645 bio = SSL_get_wbio(s);
2646 if (BIO_should_write(bio))
2647 return (SSL_ERROR_WANT_WRITE);
2648 else if (BIO_should_read(bio))
2650 * See above (SSL_want_read(s) with BIO_should_write(bio))
2652 return (SSL_ERROR_WANT_READ);
2653 else if (BIO_should_io_special(bio)) {
2654 reason = BIO_get_retry_reason(bio);
2655 if (reason == BIO_RR_CONNECT)
2656 return (SSL_ERROR_WANT_CONNECT);
2657 else if (reason == BIO_RR_ACCEPT)
2658 return (SSL_ERROR_WANT_ACCEPT);
2660 return (SSL_ERROR_SYSCALL);
2663 if ((i < 0) && SSL_want_x509_lookup(s)) {
2664 return (SSL_ERROR_WANT_X509_LOOKUP);
2668 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2669 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2670 return (SSL_ERROR_ZERO_RETURN);
2672 return (SSL_ERROR_SYSCALL);
2675 int SSL_do_handshake(SSL *s)
2679 if (s->handshake_func == NULL) {
2680 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2684 s->method->ssl_renegotiate_check(s);
2686 if (SSL_in_init(s) || SSL_in_before(s)) {
2687 ret = s->handshake_func(s);
2693 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2694 * calls will reset it
2696 void SSL_set_accept_state(SSL *s)
2700 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2701 s->handshake_func = s->method->ssl_accept;
2702 /* clear the current cipher */
2703 ssl_clear_cipher_ctx(s);
2704 ssl_clear_hash_ctx(&s->read_hash);
2705 ssl_clear_hash_ctx(&s->write_hash);
2708 void SSL_set_connect_state(SSL *s)
2712 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2713 s->handshake_func = s->method->ssl_connect;
2714 /* clear the current cipher */
2715 ssl_clear_cipher_ctx(s);
2716 ssl_clear_hash_ctx(&s->read_hash);
2717 ssl_clear_hash_ctx(&s->write_hash);
2720 int ssl_undefined_function(SSL *s)
2722 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2726 int ssl_undefined_void_function(void)
2728 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2729 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2733 int ssl_undefined_const_function(const SSL *s)
2735 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2736 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2740 SSL_METHOD *ssl_bad_method(int ver)
2742 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2746 const char *SSL_get_version(const SSL *s)
2748 if (s->version == TLS1_2_VERSION)
2750 else if (s->version == TLS1_1_VERSION)
2752 else if (s->version == TLS1_VERSION)
2754 else if (s->version == SSL3_VERSION)
2756 else if (s->version == DTLS1_BAD_VER)
2757 return ("DTLSv0.9");
2758 else if (s->version == DTLS1_VERSION)
2760 else if (s->version == DTLS1_2_VERSION)
2761 return ("DTLSv1.2");
2766 SSL *SSL_dup(SSL *s)
2768 STACK_OF(X509_NAME) *sk;
2773 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2776 ret->version = s->version;
2777 ret->type = s->type;
2778 ret->method = s->method;
2780 if (s->session != NULL) {
2781 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2782 if(!SSL_copy_session_id(ret, s))
2786 * No session has been established yet, so we have to expect that
2787 * s->cert or ret->cert will be changed later -- they should not both
2788 * point to the same object, and thus we can't use
2789 * SSL_copy_session_id.
2792 ret->method->ssl_free(ret);
2793 ret->method = s->method;
2794 ret->method->ssl_new(ret);
2796 if (s->cert != NULL) {
2797 if (ret->cert != NULL) {
2798 ssl_cert_free(ret->cert);
2800 ret->cert = ssl_cert_dup(s->cert);
2801 if (ret->cert == NULL)
2805 if(!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2809 ret->options = s->options;
2810 ret->mode = s->mode;
2811 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2812 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2813 ret->msg_callback = s->msg_callback;
2814 ret->msg_callback_arg = s->msg_callback_arg;
2815 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2816 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2817 ret->generate_session_id = s->generate_session_id;
2819 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2821 ret->debug = s->debug;
2823 /* copy app data, a little dangerous perhaps */
2824 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2827 /* setup rbio, and wbio */
2828 if (s->rbio != NULL) {
2829 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2832 if (s->wbio != NULL) {
2833 if (s->wbio != s->rbio) {
2834 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2837 ret->wbio = ret->rbio;
2839 ret->rwstate = s->rwstate;
2840 ret->in_handshake = s->in_handshake;
2841 ret->handshake_func = s->handshake_func;
2842 ret->server = s->server;
2843 ret->renegotiate = s->renegotiate;
2844 ret->new_session = s->new_session;
2845 ret->quiet_shutdown = s->quiet_shutdown;
2846 ret->shutdown = s->shutdown;
2847 ret->state = s->state; /* SSL_dup does not really work at any state,
2849 ret->rstate = s->rstate;
2850 ret->init_num = 0; /* would have to copy ret->init_buf,
2851 * ret->init_msg, ret->init_num,
2855 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2857 /* dup the cipher_list and cipher_list_by_id stacks */
2858 if (s->cipher_list != NULL) {
2859 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2862 if (s->cipher_list_by_id != NULL)
2863 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2867 /* Dup the client_CA list */
2868 if (s->client_CA != NULL) {
2869 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2871 ret->client_CA = sk;
2872 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2873 xn = sk_X509_NAME_value(sk, i);
2874 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2890 void ssl_clear_cipher_ctx(SSL *s)
2892 if (s->enc_read_ctx != NULL) {
2893 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2894 OPENSSL_free(s->enc_read_ctx);
2895 s->enc_read_ctx = NULL;
2897 if (s->enc_write_ctx != NULL) {
2898 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2899 OPENSSL_free(s->enc_write_ctx);
2900 s->enc_write_ctx = NULL;
2902 #ifndef OPENSSL_NO_COMP
2903 if (s->expand != NULL) {
2904 COMP_CTX_free(s->expand);
2907 if (s->compress != NULL) {
2908 COMP_CTX_free(s->compress);
2914 X509 *SSL_get_certificate(const SSL *s)
2916 if (s->cert != NULL)
2917 return (s->cert->key->x509);
2922 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2924 if (s->cert != NULL)
2925 return (s->cert->key->privatekey);
2930 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2932 if (ctx->cert != NULL)
2933 return ctx->cert->key->x509;
2938 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2940 if (ctx->cert != NULL)
2941 return ctx->cert->key->privatekey;
2946 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2948 if ((s->session != NULL) && (s->session->cipher != NULL))
2949 return (s->session->cipher);
2953 #ifdef OPENSSL_NO_COMP
2954 const void *SSL_get_current_compression(SSL *s)
2959 const void *SSL_get_current_expansion(SSL *s)
2965 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2967 if (s->compress != NULL)
2968 return (s->compress->meth);
2972 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2974 if (s->expand != NULL)
2975 return (s->expand->meth);
2980 int ssl_init_wbio_buffer(SSL *s, int push)
2984 if (s->bbio == NULL) {
2985 bbio = BIO_new(BIO_f_buffer());
2991 if (s->bbio == s->wbio)
2992 s->wbio = BIO_pop(s->wbio);
2994 (void)BIO_reset(bbio);
2995 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2996 if (!BIO_set_read_buffer_size(bbio, 1)) {
2997 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3001 if (s->wbio != bbio)
3002 s->wbio = BIO_push(bbio, s->wbio);
3004 if (s->wbio == bbio)
3005 s->wbio = BIO_pop(bbio);
3010 void ssl_free_wbio_buffer(SSL *s)
3012 if (s->bbio == NULL)
3015 if (s->bbio == s->wbio) {
3016 /* remove buffering */
3017 s->wbio = BIO_pop(s->wbio);
3018 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3019 * adding one more preprocessor symbol */
3020 assert(s->wbio != NULL);
3027 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3029 ctx->quiet_shutdown = mode;
3032 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3034 return (ctx->quiet_shutdown);
3037 void SSL_set_quiet_shutdown(SSL *s, int mode)
3039 s->quiet_shutdown = mode;
3042 int SSL_get_quiet_shutdown(const SSL *s)
3044 return (s->quiet_shutdown);
3047 void SSL_set_shutdown(SSL *s, int mode)
3052 int SSL_get_shutdown(const SSL *s)
3054 return (s->shutdown);
3057 int SSL_version(const SSL *s)
3059 return (s->version);
3062 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3067 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3070 if (ssl->ctx == ctx)
3072 #ifndef OPENSSL_NO_TLSEXT
3074 ctx = ssl->initial_ctx;
3076 new_cert = ssl_cert_dup(ctx->cert);
3077 if (new_cert == NULL) {
3080 /* Preserve any already negotiated parameters */
3082 new_cert->peer_sigalgs = ssl->cert->peer_sigalgs;
3083 new_cert->peer_sigalgslen = ssl->cert->peer_sigalgslen;
3084 ssl->cert->peer_sigalgs = NULL;
3085 new_cert->ciphers_raw = ssl->cert->ciphers_raw;
3086 new_cert->ciphers_rawlen = ssl->cert->ciphers_rawlen;
3087 ssl->cert->ciphers_raw = NULL;
3089 ssl_cert_free(ssl->cert);
3090 ssl->cert = new_cert;
3093 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3094 * so setter APIs must prevent invalid lengths from entering the system.
3096 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3099 * If the session ID context matches that of the parent SSL_CTX,
3100 * inherit it from the new SSL_CTX as well. If however the context does
3101 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3102 * leave it unchanged.
3104 if ((ssl->ctx != NULL) &&
3105 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3106 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3107 ssl->sid_ctx_length = ctx->sid_ctx_length;
3108 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3111 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3112 if (ssl->ctx != NULL)
3113 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3119 #ifndef OPENSSL_NO_STDIO
3120 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3122 return (X509_STORE_set_default_paths(ctx->cert_store));
3125 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3128 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3132 void SSL_set_info_callback(SSL *ssl,
3133 void (*cb) (const SSL *ssl, int type, int val))
3135 ssl->info_callback = cb;
3139 * One compiler (Diab DCC) doesn't like argument names in returned function
3142 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3145 return ssl->info_callback;
3148 int SSL_state(const SSL *ssl)
3150 return (ssl->state);
3153 void SSL_set_state(SSL *ssl, int state)
3158 void SSL_set_verify_result(SSL *ssl, long arg)
3160 ssl->verify_result = arg;
3163 long SSL_get_verify_result(const SSL *ssl)
3165 return (ssl->verify_result);
3168 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3169 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3171 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3172 new_func, dup_func, free_func);
3175 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3177 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3180 void *SSL_get_ex_data(const SSL *s, int idx)
3182 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3185 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3186 CRYPTO_EX_dup *dup_func,
3187 CRYPTO_EX_free *free_func)
3189 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3190 new_func, dup_func, free_func);
3193 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3195 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3198 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3200 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3208 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3210 return (ctx->cert_store);
3213 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3215 if (ctx->cert_store != NULL)
3216 X509_STORE_free(ctx->cert_store);
3217 ctx->cert_store = store;
3220 int SSL_want(const SSL *s)
3222 return (s->rwstate);
3226 * \brief Set the callback for generating temporary RSA keys.
3227 * \param ctx the SSL context.
3228 * \param cb the callback
3231 #ifndef OPENSSL_NO_RSA
3232 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3236 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3239 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3243 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3249 * \brief The RSA temporary key callback function.
3250 * \param ssl the SSL session.
3251 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3252 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3253 * of the required key in bits.
3254 * \return the temporary RSA key.
3255 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3258 RSA *cb(SSL *ssl, int is_export, int keylength)
3264 * \brief Set the callback for generating temporary DH keys.
3265 * \param ctx the SSL context.
3266 * \param dh the callback
3269 #ifndef OPENSSL_NO_DH
3270 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3271 DH *(*dh) (SSL *ssl, int is_export,
3274 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3277 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3280 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3284 #ifndef OPENSSL_NO_EC
3285 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3286 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3289 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3290 (void (*)(void))ecdh);
3293 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3294 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3297 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3301 #ifndef OPENSSL_NO_PSK
3302 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3304 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3305 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3306 SSL_R_DATA_LENGTH_TOO_LONG);
3309 if (ctx->psk_identity_hint != NULL)
3310 OPENSSL_free(ctx->psk_identity_hint);
3311 if (identity_hint != NULL) {
3312 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3313 if (ctx->psk_identity_hint == NULL)
3316 ctx->psk_identity_hint = NULL;
3320 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3325 if (s->session == NULL)
3326 return 1; /* session not created yet, ignored */
3328 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3329 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3332 if (s->session->psk_identity_hint != NULL)
3333 OPENSSL_free(s->session->psk_identity_hint);
3334 if (identity_hint != NULL) {
3335 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3336 if (s->session->psk_identity_hint == NULL)
3339 s->session->psk_identity_hint = NULL;
3343 const char *SSL_get_psk_identity_hint(const SSL *s)
3345 if (s == NULL || s->session == NULL)
3347 return (s->session->psk_identity_hint);
3350 const char *SSL_get_psk_identity(const SSL *s)
3352 if (s == NULL || s->session == NULL)
3354 return (s->session->psk_identity);
3357 void SSL_set_psk_client_callback(SSL *s,
3358 unsigned int (*cb) (SSL *ssl,
3367 s->psk_client_callback = cb;
3370 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3371 unsigned int (*cb) (SSL *ssl,
3380 ctx->psk_client_callback = cb;
3383 void SSL_set_psk_server_callback(SSL *s,
3384 unsigned int (*cb) (SSL *ssl,
3385 const char *identity,
3390 s->psk_server_callback = cb;
3393 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3394 unsigned int (*cb) (SSL *ssl,
3395 const char *identity,
3400 ctx->psk_server_callback = cb;
3404 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3405 void (*cb) (int write_p, int version,
3406 int content_type, const void *buf,
3407 size_t len, SSL *ssl, void *arg))
3409 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3412 void SSL_set_msg_callback(SSL *ssl,
3413 void (*cb) (int write_p, int version,
3414 int content_type, const void *buf,
3415 size_t len, SSL *ssl, void *arg))
3417 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3420 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3421 int (*cb) (SSL *ssl,
3425 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3426 (void (*)(void))cb);
3429 void SSL_set_not_resumable_session_callback(SSL *ssl,
3430 int (*cb) (SSL *ssl,
3431 int is_forward_secure))
3433 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3434 (void (*)(void))cb);
3438 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3439 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3440 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3444 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3446 ssl_clear_hash_ctx(hash);
3447 *hash = EVP_MD_CTX_create();
3449 EVP_DigestInit_ex(*hash, md, NULL);
3453 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3457 EVP_MD_CTX_destroy(*hash);
3461 /* Retrieve handshake hashes */
3462 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3464 unsigned char *p = out;
3469 EVP_MD_CTX_init(&ctx);
3470 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3471 if (mask & ssl_get_algorithm2(s)) {
3472 int hashsize = EVP_MD_size(md);
3473 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3474 if (!hdgst || hashsize < 0 || hashsize > outlen)
3476 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3478 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3486 EVP_MD_CTX_cleanup(&ctx);
3490 void SSL_set_debug(SSL *s, int debug)
3495 int SSL_cache_hit(SSL *s)
3500 int SSL_is_server(SSL *s)
3505 void SSL_set_security_level(SSL *s, int level)
3507 s->cert->sec_level = level;
3510 int SSL_get_security_level(const SSL *s)
3512 return s->cert->sec_level;
3515 void SSL_set_security_callback(SSL *s,
3516 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3517 int bits, int nid, void *other,
3520 s->cert->sec_cb = cb;
3523 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3525 void *other, void *ex) {
3526 return s->cert->sec_cb;
3529 void SSL_set0_security_ex_data(SSL *s, void *ex)
3531 s->cert->sec_ex = ex;
3534 void *SSL_get0_security_ex_data(const SSL *s)
3536 return s->cert->sec_ex;
3539 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3541 ctx->cert->sec_level = level;
3544 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3546 return ctx->cert->sec_level;
3549 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3550 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3551 int bits, int nid, void *other,
3554 ctx->cert->sec_cb = cb;
3557 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3563 return ctx->cert->sec_cb;
3566 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3568 ctx->cert->sec_ex = ex;
3571 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3573 return ctx->cert->sec_ex;
3576 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);