diff options
Diffstat (limited to 'thirdparty/openssl/ssl/ssl_lib.c')
| -rw-r--r-- | thirdparty/openssl/ssl/ssl_lib.c | 3584 |
1 files changed, 0 insertions, 3584 deletions
diff --git a/thirdparty/openssl/ssl/ssl_lib.c b/thirdparty/openssl/ssl/ssl_lib.c deleted file mode 100644 index 3539f4b8d2..0000000000 --- a/thirdparty/openssl/ssl/ssl_lib.c +++ /dev/null @@ -1,3584 +0,0 @@ -/* - * ! \file ssl/ssl_lib.c \brief Version independent SSL functions. - */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -/* ==================================================================== - * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ -/* ==================================================================== - * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * ECC cipher suite support in OpenSSL originally developed by - * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. - */ -/* ==================================================================== - * Copyright 2005 Nokia. All rights reserved. - * - * The portions of the attached software ("Contribution") is developed by - * Nokia Corporation and is licensed pursuant to the OpenSSL open source - * license. - * - * The Contribution, originally written by Mika Kousa and Pasi Eronen of - * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites - * support (see RFC 4279) to OpenSSL. - * - * No patent licenses or other rights except those expressly stated in - * the OpenSSL open source license shall be deemed granted or received - * expressly, by implication, estoppel, or otherwise. - * - * No assurances are provided by Nokia that the Contribution does not - * infringe the patent or other intellectual property rights of any third - * party or that the license provides you with all the necessary rights - * to make use of the Contribution. - * - * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN - * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA - * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY - * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR - * OTHERWISE. - */ - -#ifdef REF_CHECK -# include <assert.h> -#endif -#include <stdio.h> -#include "ssl_locl.h" -#include "kssl_lcl.h" -#include <openssl/objects.h> -#include <openssl/lhash.h> -#include <openssl/x509v3.h> -#include <openssl/rand.h> -#include <openssl/ocsp.h> -#ifndef OPENSSL_NO_DH -# include <openssl/dh.h> -#endif -#ifndef OPENSSL_NO_ENGINE -# include <openssl/engine.h> -#endif - -const char *SSL_version_str = OPENSSL_VERSION_TEXT; - -SSL3_ENC_METHOD ssl3_undef_enc_method = { - /* - * evil casts, but these functions are only called if there's a library - * bug - */ - (int (*)(SSL *, int))ssl_undefined_function, - (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, - ssl_undefined_function, - (int (*)(SSL *, unsigned char *, unsigned char *, int)) - ssl_undefined_function, - (int (*)(SSL *, int))ssl_undefined_function, - (int (*)(SSL *, const char *, int, unsigned char *)) - ssl_undefined_function, - 0, /* finish_mac_length */ - (int (*)(SSL *, int, unsigned char *))ssl_undefined_function, - NULL, /* client_finished_label */ - 0, /* client_finished_label_len */ - NULL, /* server_finished_label */ - 0, /* server_finished_label_len */ - (int (*)(int))ssl_undefined_function, - (int (*)(SSL *, unsigned char *, size_t, const char *, - size_t, const unsigned char *, size_t, - int use_context))ssl_undefined_function, -}; - -int SSL_clear(SSL *s) -{ - - if (s->method == NULL) { - SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); - return (0); - } - - if (ssl_clear_bad_session(s)) { - SSL_SESSION_free(s->session); - s->session = NULL; - } - - s->error = 0; - s->hit = 0; - s->shutdown = 0; - -#if 0 - /* - * Disabled since version 1.10 of this file (early return not - * needed because SSL_clear is not called when doing renegotiation) - */ - /* - * This is set if we are doing dynamic renegotiation so keep - * the old cipher. It is sort of a SSL_clear_lite :-) - */ - if (s->renegotiate) - return (1); -#else - if (s->renegotiate) { - SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); - return 0; - } -#endif - - s->type = 0; - - s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); - - s->version = s->method->version; - s->client_version = s->version; - s->rwstate = SSL_NOTHING; - s->rstate = SSL_ST_READ_HEADER; -#if 0 - s->read_ahead = s->ctx->read_ahead; -#endif - - if (s->init_buf != NULL) { - BUF_MEM_free(s->init_buf); - s->init_buf = NULL; - } - - ssl_clear_cipher_ctx(s); - ssl_clear_hash_ctx(&s->read_hash); - ssl_clear_hash_ctx(&s->write_hash); - - s->first_packet = 0; -#ifndef OPENSSL_NO_TLSEXT - if (s->cert != NULL) { - if (s->cert->alpn_proposed) { - OPENSSL_free(s->cert->alpn_proposed); - s->cert->alpn_proposed = NULL; - } - s->cert->alpn_proposed_len = 0; - s->cert->alpn_sent = 0; - } -#endif -#if 1 - /* - * Check to see if we were changed into a different method, if so, revert - * back if we are not doing session-id reuse. - */ - if (!s->in_handshake && (s->session == NULL) - && (s->method != s->ctx->method)) { - s->method->ssl_free(s); - s->method = s->ctx->method; - if (!s->method->ssl_new(s)) - return (0); - } else -#endif - s->method->ssl_clear(s); - return (1); -} - -/** Used to change an SSL_CTXs default SSL method type */ -int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) -{ - STACK_OF(SSL_CIPHER) *sk; - - ctx->method = meth; - - sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), - &(ctx->cipher_list_by_id), - meth->version == - SSL2_VERSION ? "SSLv2" : - SSL_DEFAULT_CIPHER_LIST, ctx->cert); - if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { - SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, - SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); - return (0); - } - return (1); -} - -SSL *SSL_new(SSL_CTX *ctx) -{ - SSL *s; - - if (ctx == NULL) { - SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); - return (NULL); - } - if (ctx->method == NULL) { - SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); - return (NULL); - } - - s = (SSL *)OPENSSL_malloc(sizeof(SSL)); - if (s == NULL) - goto err; - memset(s, 0, sizeof(SSL)); - -#ifndef OPENSSL_NO_KRB5 - s->kssl_ctx = kssl_ctx_new(); -#endif /* OPENSSL_NO_KRB5 */ - - s->options = ctx->options; - s->mode = ctx->mode; - s->max_cert_list = ctx->max_cert_list; - s->references = 1; - - if (ctx->cert != NULL) { - /* - * Earlier library versions used to copy the pointer to the CERT, not - * its contents; only when setting new parameters for the per-SSL - * copy, ssl_cert_new would be called (and the direct reference to - * the per-SSL_CTX settings would be lost, but those still were - * indirectly accessed for various purposes, and for that reason they - * used to be known as s->ctx->default_cert). Now we don't look at the - * SSL_CTX's CERT after having duplicated it once. - */ - - s->cert = ssl_cert_dup(ctx->cert); - if (s->cert == NULL) - goto err; - } else - s->cert = NULL; /* Cannot really happen (see SSL_CTX_new) */ - - s->read_ahead = ctx->read_ahead; - s->msg_callback = ctx->msg_callback; - s->msg_callback_arg = ctx->msg_callback_arg; - s->verify_mode = ctx->verify_mode; -#if 0 - s->verify_depth = ctx->verify_depth; -#endif - s->sid_ctx_length = ctx->sid_ctx_length; - OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); - memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); - s->verify_callback = ctx->default_verify_callback; - s->generate_session_id = ctx->generate_session_id; - - s->param = X509_VERIFY_PARAM_new(); - if (!s->param) - goto err; - X509_VERIFY_PARAM_inherit(s->param, ctx->param); -#if 0 - s->purpose = ctx->purpose; - s->trust = ctx->trust; -#endif - s->quiet_shutdown = ctx->quiet_shutdown; - s->max_send_fragment = ctx->max_send_fragment; - - CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); - s->ctx = ctx; -#ifndef OPENSSL_NO_TLSEXT - s->tlsext_debug_cb = 0; - s->tlsext_debug_arg = NULL; - s->tlsext_ticket_expected = 0; - s->tlsext_status_type = -1; - s->tlsext_status_expected = 0; - s->tlsext_ocsp_ids = NULL; - s->tlsext_ocsp_exts = NULL; - s->tlsext_ocsp_resp = NULL; - s->tlsext_ocsp_resplen = -1; - CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); - s->initial_ctx = ctx; -# ifndef OPENSSL_NO_EC - if (ctx->tlsext_ecpointformatlist) { - s->tlsext_ecpointformatlist = - BUF_memdup(ctx->tlsext_ecpointformatlist, - ctx->tlsext_ecpointformatlist_length); - if (!s->tlsext_ecpointformatlist) - goto err; - s->tlsext_ecpointformatlist_length = - ctx->tlsext_ecpointformatlist_length; - } - if (ctx->tlsext_ellipticcurvelist) { - s->tlsext_ellipticcurvelist = - BUF_memdup(ctx->tlsext_ellipticcurvelist, - ctx->tlsext_ellipticcurvelist_length); - if (!s->tlsext_ellipticcurvelist) - goto err; - s->tlsext_ellipticcurvelist_length = - ctx->tlsext_ellipticcurvelist_length; - } -# endif -# ifndef OPENSSL_NO_NEXTPROTONEG - s->next_proto_negotiated = NULL; -# endif - - if (s->ctx->alpn_client_proto_list) { - s->alpn_client_proto_list = - OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); - if (s->alpn_client_proto_list == NULL) - goto err; - memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, - s->ctx->alpn_client_proto_list_len); - s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; - } -#endif - - s->verify_result = X509_V_OK; - - s->method = ctx->method; - - if (!s->method->ssl_new(s)) - goto err; - - s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; - - SSL_clear(s); - - CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); - -#ifndef OPENSSL_NO_PSK - s->psk_client_callback = ctx->psk_client_callback; - s->psk_server_callback = ctx->psk_server_callback; -#endif - - return (s); - err: - if (s != NULL) - SSL_free(s); - SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); - return (NULL); -} - -int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, - unsigned int sid_ctx_len) -{ - if (sid_ctx_len > sizeof ctx->sid_ctx) { - SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, - SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); - return 0; - } - ctx->sid_ctx_length = sid_ctx_len; - memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); - - return 1; -} - -int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, - unsigned int sid_ctx_len) -{ - if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { - SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, - SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); - return 0; - } - ssl->sid_ctx_length = sid_ctx_len; - memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); - - return 1; -} - -int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) -{ - CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); - ctx->generate_session_id = cb; - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); - return 1; -} - -int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) -{ - CRYPTO_w_lock(CRYPTO_LOCK_SSL); - ssl->generate_session_id = cb; - CRYPTO_w_unlock(CRYPTO_LOCK_SSL); - return 1; -} - -int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, - unsigned int id_len) -{ - /* - * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how - * we can "construct" a session to give us the desired check - ie. to - * find if there's a session in the hash table that would conflict with - * any new session built out of this id/id_len and the ssl_version in use - * by this SSL. - */ - SSL_SESSION r, *p; - - if (id_len > sizeof r.session_id) - return 0; - - r.ssl_version = ssl->version; - r.session_id_length = id_len; - memcpy(r.session_id, id, id_len); - /* - * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a - * callback is calling us to check the uniqueness of a shorter ID, it - * must be compared as a padded-out ID because that is what it will be - * converted to when the callback has finished choosing it. - */ - if ((r.ssl_version == SSL2_VERSION) && - (id_len < SSL2_SSL_SESSION_ID_LENGTH)) { - memset(r.session_id + id_len, 0, SSL2_SSL_SESSION_ID_LENGTH - id_len); - r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; - } - - CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); - p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); - CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); - return (p != NULL); -} - -int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) -{ - return X509_VERIFY_PARAM_set_purpose(s->param, purpose); -} - -int SSL_set_purpose(SSL *s, int purpose) -{ - return X509_VERIFY_PARAM_set_purpose(s->param, purpose); -} - -int SSL_CTX_set_trust(SSL_CTX *s, int trust) -{ - return X509_VERIFY_PARAM_set_trust(s->param, trust); -} - -int SSL_set_trust(SSL *s, int trust) -{ - return X509_VERIFY_PARAM_set_trust(s->param, trust); -} - -int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) -{ - return X509_VERIFY_PARAM_set1(ctx->param, vpm); -} - -int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) -{ - return X509_VERIFY_PARAM_set1(ssl->param, vpm); -} - -X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) -{ - return ctx->param; -} - -X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) -{ - return ssl->param; -} - -void SSL_certs_clear(SSL *s) -{ - ssl_cert_clear_certs(s->cert); -} - -void SSL_free(SSL *s) -{ - int i; - - if (s == NULL) - return; - - i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); -#ifdef REF_PRINT - REF_PRINT("SSL", s); -#endif - if (i > 0) - return; -#ifdef REF_CHECK - if (i < 0) { - fprintf(stderr, "SSL_free, bad reference count\n"); - abort(); /* ok */ - } -#endif - - if (s->param) - X509_VERIFY_PARAM_free(s->param); - - CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); - - if (s->bbio != NULL) { - /* If the buffering BIO is in place, pop it off */ - if (s->bbio == s->wbio) { - s->wbio = BIO_pop(s->wbio); - } - BIO_free(s->bbio); - s->bbio = NULL; - } - if (s->rbio != NULL) - BIO_free_all(s->rbio); - if ((s->wbio != NULL) && (s->wbio != s->rbio)) - BIO_free_all(s->wbio); - - if (s->init_buf != NULL) - BUF_MEM_free(s->init_buf); - - /* add extra stuff */ - if (s->cipher_list != NULL) - sk_SSL_CIPHER_free(s->cipher_list); - if (s->cipher_list_by_id != NULL) - sk_SSL_CIPHER_free(s->cipher_list_by_id); - - /* Make the next call work :-) */ - if (s->session != NULL) { - ssl_clear_bad_session(s); - SSL_SESSION_free(s->session); - } - - ssl_clear_cipher_ctx(s); - ssl_clear_hash_ctx(&s->read_hash); - ssl_clear_hash_ctx(&s->write_hash); - - if (s->cert != NULL) - ssl_cert_free(s->cert); - /* Free up if allocated */ - -#ifndef OPENSSL_NO_TLSEXT - if (s->tlsext_hostname) - OPENSSL_free(s->tlsext_hostname); - if (s->initial_ctx) - SSL_CTX_free(s->initial_ctx); -# ifndef OPENSSL_NO_EC - if (s->tlsext_ecpointformatlist) - OPENSSL_free(s->tlsext_ecpointformatlist); - if (s->tlsext_ellipticcurvelist) - OPENSSL_free(s->tlsext_ellipticcurvelist); -# endif /* OPENSSL_NO_EC */ - if (s->tlsext_opaque_prf_input) - OPENSSL_free(s->tlsext_opaque_prf_input); - if (s->tlsext_ocsp_exts) - sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); - if (s->tlsext_ocsp_ids) - sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); - if (s->tlsext_ocsp_resp) - OPENSSL_free(s->tlsext_ocsp_resp); - if (s->alpn_client_proto_list) - OPENSSL_free(s->alpn_client_proto_list); -#endif - - if (s->client_CA != NULL) - sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); - - if (s->method != NULL) - s->method->ssl_free(s); - - if (s->ctx) - SSL_CTX_free(s->ctx); - -#ifndef OPENSSL_NO_KRB5 - if (s->kssl_ctx != NULL) - kssl_ctx_free(s->kssl_ctx); -#endif /* OPENSSL_NO_KRB5 */ - -#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) - if (s->next_proto_negotiated) - OPENSSL_free(s->next_proto_negotiated); -#endif - -#ifndef OPENSSL_NO_SRTP - if (s->srtp_profiles) - sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); -#endif - - OPENSSL_free(s); -} - -void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) -{ - /* - * If the output buffering BIO is still in place, remove it - */ - if (s->bbio != NULL) { - if (s->wbio == s->bbio) { - s->wbio = s->wbio->next_bio; - s->bbio->next_bio = NULL; - } - } - if ((s->rbio != NULL) && (s->rbio != rbio)) - BIO_free_all(s->rbio); - if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) - BIO_free_all(s->wbio); - s->rbio = rbio; - s->wbio = wbio; -} - -BIO *SSL_get_rbio(const SSL *s) -{ - return (s->rbio); -} - -BIO *SSL_get_wbio(const SSL *s) -{ - return (s->wbio); -} - -int SSL_get_fd(const SSL *s) -{ - return (SSL_get_rfd(s)); -} - -int SSL_get_rfd(const SSL *s) -{ - int ret = -1; - BIO *b, *r; - - b = SSL_get_rbio(s); - r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); - if (r != NULL) - BIO_get_fd(r, &ret); - return (ret); -} - -int SSL_get_wfd(const SSL *s) -{ - int ret = -1; - BIO *b, *r; - - b = SSL_get_wbio(s); - r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); - if (r != NULL) - BIO_get_fd(r, &ret); - return (ret); -} - -#ifndef OPENSSL_NO_SOCK -int SSL_set_fd(SSL *s, int fd) -{ - int ret = 0; - BIO *bio = NULL; - - bio = BIO_new(BIO_s_socket()); - - if (bio == NULL) { - SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); - goto err; - } - BIO_set_fd(bio, fd, BIO_NOCLOSE); - SSL_set_bio(s, bio, bio); - ret = 1; - err: - return (ret); -} - -int SSL_set_wfd(SSL *s, int fd) -{ - int ret = 0; - BIO *bio = NULL; - - if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) - || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { - bio = BIO_new(BIO_s_socket()); - - if (bio == NULL) { - SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); - goto err; - } - BIO_set_fd(bio, fd, BIO_NOCLOSE); - SSL_set_bio(s, SSL_get_rbio(s), bio); - } else - SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); - ret = 1; - err: - return (ret); -} - -int SSL_set_rfd(SSL *s, int fd) -{ - int ret = 0; - BIO *bio = NULL; - - if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) - || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { - bio = BIO_new(BIO_s_socket()); - - if (bio == NULL) { - SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); - goto err; - } - BIO_set_fd(bio, fd, BIO_NOCLOSE); - SSL_set_bio(s, bio, SSL_get_wbio(s)); - } else - SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); - ret = 1; - err: - return (ret); -} -#endif - -/* return length of latest Finished message we sent, copy to 'buf' */ -size_t SSL_get_finished(const SSL *s, void *buf, size_t count) -{ - size_t ret = 0; - - if (s->s3 != NULL) { - ret = s->s3->tmp.finish_md_len; - if (count > ret) - count = ret; - memcpy(buf, s->s3->tmp.finish_md, count); - } - return ret; -} - -/* return length of latest Finished message we expected, copy to 'buf' */ -size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) -{ - size_t ret = 0; - - if (s->s3 != NULL) { - ret = s->s3->tmp.peer_finish_md_len; - if (count > ret) - count = ret; - memcpy(buf, s->s3->tmp.peer_finish_md, count); - } - return ret; -} - -int SSL_get_verify_mode(const SSL *s) -{ - return (s->verify_mode); -} - -int SSL_get_verify_depth(const SSL *s) -{ - return X509_VERIFY_PARAM_get_depth(s->param); -} - -int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { - return (s->verify_callback); -} - -int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) -{ - return (ctx->verify_mode); -} - -int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) -{ - return X509_VERIFY_PARAM_get_depth(ctx->param); -} - -int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { - return (ctx->default_verify_callback); -} - -void SSL_set_verify(SSL *s, int mode, - int (*callback) (int ok, X509_STORE_CTX *ctx)) -{ - s->verify_mode = mode; - if (callback != NULL) - s->verify_callback = callback; -} - -void SSL_set_verify_depth(SSL *s, int depth) -{ - X509_VERIFY_PARAM_set_depth(s->param, depth); -} - -void SSL_set_read_ahead(SSL *s, int yes) -{ - s->read_ahead = yes; -} - -int SSL_get_read_ahead(const SSL *s) -{ - return (s->read_ahead); -} - -int SSL_pending(const SSL *s) -{ - /* - * SSL_pending cannot work properly if read-ahead is enabled - * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is - * impossible to fix since SSL_pending cannot report errors that may be - * observed while scanning the new data. (Note that SSL_pending() is - * often used as a boolean value, so we'd better not return -1.) - */ - return (s->method->ssl_pending(s)); -} - -X509 *SSL_get_peer_certificate(const SSL *s) -{ - X509 *r; - - if ((s == NULL) || (s->session == NULL)) - r = NULL; - else - r = s->session->peer; - - if (r == NULL) - return (r); - - CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); - - return (r); -} - -STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) -{ - STACK_OF(X509) *r; - - if ((s == NULL) || (s->session == NULL) - || (s->session->sess_cert == NULL)) - r = NULL; - else - r = s->session->sess_cert->cert_chain; - - /* - * If we are a client, cert_chain includes the peer's own certificate; if - * we are a server, it does not. - */ - - return (r); -} - -/* - * Now in theory, since the calling process own 't' it should be safe to - * modify. We need to be able to read f without being hassled - */ -void SSL_copy_session_id(SSL *t, const SSL *f) -{ - CERT *tmp; - - /* Do we need to to SSL locking? */ - SSL_set_session(t, SSL_get_session(f)); - - /* - * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa - */ - if (t->method != f->method) { - t->method->ssl_free(t); /* cleanup current */ - t->method = f->method; /* change method */ - t->method->ssl_new(t); /* setup new */ - } - - tmp = t->cert; - if (f->cert != NULL) { - CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); - t->cert = f->cert; - } else - t->cert = NULL; - if (tmp != NULL) - ssl_cert_free(tmp); - SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length); -} - -/* Fix this so it checks all the valid key/cert options */ -int SSL_CTX_check_private_key(const SSL_CTX *ctx) -{ - if ((ctx == NULL) || - (ctx->cert == NULL) || (ctx->cert->key->x509 == NULL)) { - SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, - SSL_R_NO_CERTIFICATE_ASSIGNED); - return (0); - } - if (ctx->cert->key->privatekey == NULL) { - SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, - SSL_R_NO_PRIVATE_KEY_ASSIGNED); - return (0); - } - return (X509_check_private_key - (ctx->cert->key->x509, ctx->cert->key->privatekey)); -} - -/* Fix this function so that it takes an optional type parameter */ -int SSL_check_private_key(const SSL *ssl) -{ - if (ssl == NULL) { - SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); - return (0); - } - if (ssl->cert == NULL) { - SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); - return 0; - } - if (ssl->cert->key->x509 == NULL) { - SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); - return (0); - } - if (ssl->cert->key->privatekey == NULL) { - SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); - return (0); - } - return (X509_check_private_key(ssl->cert->key->x509, - ssl->cert->key->privatekey)); -} - -int SSL_accept(SSL *s) -{ - if (s->handshake_func == 0) - /* Not properly initialized yet */ - SSL_set_accept_state(s); - - return (s->method->ssl_accept(s)); -} - -int SSL_connect(SSL *s) -{ - if (s->handshake_func == 0) - /* Not properly initialized yet */ - SSL_set_connect_state(s); - - return (s->method->ssl_connect(s)); -} - -long SSL_get_default_timeout(const SSL *s) -{ - return (s->method->get_timeout()); -} - -int SSL_read(SSL *s, void *buf, int num) -{ - if (s->handshake_func == 0) { - SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); - return -1; - } - - if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { - s->rwstate = SSL_NOTHING; - return (0); - } - return (s->method->ssl_read(s, buf, num)); -} - -int SSL_peek(SSL *s, void *buf, int num) -{ - if (s->handshake_func == 0) { - SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); - return -1; - } - - if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { - return (0); - } - return (s->method->ssl_peek(s, buf, num)); -} - -int SSL_write(SSL *s, const void *buf, int num) -{ - if (s->handshake_func == 0) { - SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); - return -1; - } - - if (s->shutdown & SSL_SENT_SHUTDOWN) { - s->rwstate = SSL_NOTHING; - SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); - return (-1); - } - return (s->method->ssl_write(s, buf, num)); -} - -int SSL_shutdown(SSL *s) -{ - /* - * Note that this function behaves differently from what one might - * expect. Return values are 0 for no success (yet), 1 for success; but - * calling it once is usually not enough, even if blocking I/O is used - * (see ssl3_shutdown). - */ - - if (s->handshake_func == 0) { - SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); - return -1; - } - - if (!SSL_in_init(s)) { - return s->method->ssl_shutdown(s); - } else { - SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); - return -1; - } -} - -int SSL_renegotiate(SSL *s) -{ - if (s->renegotiate == 0) - s->renegotiate = 1; - - s->new_session = 1; - - return (s->method->ssl_renegotiate(s)); -} - -int SSL_renegotiate_abbreviated(SSL *s) -{ - if (s->renegotiate == 0) - s->renegotiate = 1; - - s->new_session = 0; - - return (s->method->ssl_renegotiate(s)); -} - -int SSL_renegotiate_pending(SSL *s) -{ - /* - * becomes true when negotiation is requested; false again once a - * handshake has finished - */ - return (s->renegotiate != 0); -} - -long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) -{ - long l; - - switch (cmd) { - case SSL_CTRL_GET_READ_AHEAD: - return (s->read_ahead); - case SSL_CTRL_SET_READ_AHEAD: - l = s->read_ahead; - s->read_ahead = larg; - return (l); - - case SSL_CTRL_SET_MSG_CALLBACK_ARG: - s->msg_callback_arg = parg; - return 1; - - case SSL_CTRL_OPTIONS: - return (s->options |= larg); - case SSL_CTRL_CLEAR_OPTIONS: - return (s->options &= ~larg); - case SSL_CTRL_MODE: - return (s->mode |= larg); - case SSL_CTRL_CLEAR_MODE: - return (s->mode &= ~larg); - case SSL_CTRL_GET_MAX_CERT_LIST: - return (s->max_cert_list); - case SSL_CTRL_SET_MAX_CERT_LIST: - l = s->max_cert_list; - s->max_cert_list = larg; - return (l); - case SSL_CTRL_SET_MAX_SEND_FRAGMENT: - if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) - return 0; - s->max_send_fragment = larg; - return 1; - case SSL_CTRL_GET_RI_SUPPORT: - if (s->s3) - return s->s3->send_connection_binding; - else - return 0; - case SSL_CTRL_CERT_FLAGS: - return (s->cert->cert_flags |= larg); - case SSL_CTRL_CLEAR_CERT_FLAGS: - return (s->cert->cert_flags &= ~larg); - - case SSL_CTRL_GET_RAW_CIPHERLIST: - if (parg) { - if (s->cert->ciphers_raw == NULL) - return 0; - *(unsigned char **)parg = s->cert->ciphers_raw; - return (int)s->cert->ciphers_rawlen; - } else - return ssl_put_cipher_by_char(s, NULL, NULL); - default: - return (s->method->ssl_ctrl(s, cmd, larg, parg)); - } -} - -long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) -{ - switch (cmd) { - case SSL_CTRL_SET_MSG_CALLBACK: - s->msg_callback = (void (*) - (int write_p, int version, int content_type, - const void *buf, size_t len, SSL *ssl, - void *arg))(fp); - return 1; - - default: - return (s->method->ssl_callback_ctrl(s, cmd, fp)); - } -} - -LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) -{ - return ctx->sessions; -} - -long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) -{ - long l; - /* For some cases with ctx == NULL perform syntax checks */ - if (ctx == NULL) { - switch (cmd) { -#ifndef OPENSSL_NO_EC - case SSL_CTRL_SET_CURVES_LIST: - return tls1_set_curves_list(NULL, NULL, parg); -#endif - case SSL_CTRL_SET_SIGALGS_LIST: - case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: - return tls1_set_sigalgs_list(NULL, parg, 0); - default: - return 0; - } - } - - switch (cmd) { - case SSL_CTRL_GET_READ_AHEAD: - return (ctx->read_ahead); - case SSL_CTRL_SET_READ_AHEAD: - l = ctx->read_ahead; - ctx->read_ahead = larg; - return (l); - - case SSL_CTRL_SET_MSG_CALLBACK_ARG: - ctx->msg_callback_arg = parg; - return 1; - - case SSL_CTRL_GET_MAX_CERT_LIST: - return (ctx->max_cert_list); - case SSL_CTRL_SET_MAX_CERT_LIST: - l = ctx->max_cert_list; - ctx->max_cert_list = larg; - return (l); - - case SSL_CTRL_SET_SESS_CACHE_SIZE: - l = ctx->session_cache_size; - ctx->session_cache_size = larg; - return (l); - case SSL_CTRL_GET_SESS_CACHE_SIZE: - return (ctx->session_cache_size); - case SSL_CTRL_SET_SESS_CACHE_MODE: - l = ctx->session_cache_mode; - ctx->session_cache_mode = larg; - return (l); - case SSL_CTRL_GET_SESS_CACHE_MODE: - return (ctx->session_cache_mode); - - case SSL_CTRL_SESS_NUMBER: - return (lh_SSL_SESSION_num_items(ctx->sessions)); - case SSL_CTRL_SESS_CONNECT: - return (ctx->stats.sess_connect); - case SSL_CTRL_SESS_CONNECT_GOOD: - return (ctx->stats.sess_connect_good); - case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: - return (ctx->stats.sess_connect_renegotiate); - case SSL_CTRL_SESS_ACCEPT: - return (ctx->stats.sess_accept); - case SSL_CTRL_SESS_ACCEPT_GOOD: - return (ctx->stats.sess_accept_good); - case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: - return (ctx->stats.sess_accept_renegotiate); - case SSL_CTRL_SESS_HIT: - return (ctx->stats.sess_hit); - case SSL_CTRL_SESS_CB_HIT: - return (ctx->stats.sess_cb_hit); - case SSL_CTRL_SESS_MISSES: - return (ctx->stats.sess_miss); - case SSL_CTRL_SESS_TIMEOUTS: - return (ctx->stats.sess_timeout); - case SSL_CTRL_SESS_CACHE_FULL: - return (ctx->stats.sess_cache_full); - case SSL_CTRL_OPTIONS: - return (ctx->options |= larg); - case SSL_CTRL_CLEAR_OPTIONS: - return (ctx->options &= ~larg); - case SSL_CTRL_MODE: - return (ctx->mode |= larg); - case SSL_CTRL_CLEAR_MODE: - return (ctx->mode &= ~larg); - case SSL_CTRL_SET_MAX_SEND_FRAGMENT: - if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) - return 0; - ctx->max_send_fragment = larg; - return 1; - case SSL_CTRL_CERT_FLAGS: - return (ctx->cert->cert_flags |= larg); - case SSL_CTRL_CLEAR_CERT_FLAGS: - return (ctx->cert->cert_flags &= ~larg); - default: - return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); - } -} - -long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) -{ - switch (cmd) { - case SSL_CTRL_SET_MSG_CALLBACK: - ctx->msg_callback = (void (*) - (int write_p, int version, int content_type, - const void *buf, size_t len, SSL *ssl, - void *arg))(fp); - return 1; - - default: - return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); - } -} - -int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) -{ - long l; - - l = a->id - b->id; - if (l == 0L) - return (0); - else - return ((l > 0) ? 1 : -1); -} - -int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, - const SSL_CIPHER *const *bp) -{ - long l; - - l = (*ap)->id - (*bp)->id; - if (l == 0L) - return (0); - else - return ((l > 0) ? 1 : -1); -} - -/** return a STACK of the ciphers available for the SSL and in order of - * preference */ -STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) -{ - if (s != NULL) { - if (s->cipher_list != NULL) { - return (s->cipher_list); - } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { - return (s->ctx->cipher_list); - } - } - return (NULL); -} - -/** return a STACK of the ciphers available for the SSL and in order of - * algorithm id */ -STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) -{ - if (s != NULL) { - if (s->cipher_list_by_id != NULL) { - return (s->cipher_list_by_id); - } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { - return (s->ctx->cipher_list_by_id); - } - } - return (NULL); -} - -/** The old interface to get the same thing as SSL_get_ciphers() */ -const char *SSL_get_cipher_list(const SSL *s, int n) -{ - SSL_CIPHER *c; - STACK_OF(SSL_CIPHER) *sk; - - if (s == NULL) - return (NULL); - sk = SSL_get_ciphers(s); - if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) - return (NULL); - c = sk_SSL_CIPHER_value(sk, n); - if (c == NULL) - return (NULL); - return (c->name); -} - -/** specify the ciphers to be used by default by the SSL_CTX */ -int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) -{ - STACK_OF(SSL_CIPHER) *sk; - - sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, - &ctx->cipher_list_by_id, str, ctx->cert); - /* - * ssl_create_cipher_list may return an empty stack if it was unable to - * find a cipher matching the given rule string (for example if the rule - * string specifies a cipher which has been disabled). This is not an - * error as far as ssl_create_cipher_list is concerned, and hence - * ctx->cipher_list and ctx->cipher_list_by_id has been updated. - */ - if (sk == NULL) - return 0; - else if (sk_SSL_CIPHER_num(sk) == 0) { - SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); - return 0; - } - return 1; -} - -/** specify the ciphers to be used by the SSL */ -int SSL_set_cipher_list(SSL *s, const char *str) -{ - STACK_OF(SSL_CIPHER) *sk; - - sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, - &s->cipher_list_by_id, str, s->cert); - /* see comment in SSL_CTX_set_cipher_list */ - if (sk == NULL) - return 0; - else if (sk_SSL_CIPHER_num(sk) == 0) { - SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); - return 0; - } - return 1; -} - -/* works well for SSLv2, not so good for SSLv3 */ -char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) -{ - char *p; - STACK_OF(SSL_CIPHER) *sk; - SSL_CIPHER *c; - int i; - - if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) - return (NULL); - - p = buf; - sk = s->session->ciphers; - - if (sk_SSL_CIPHER_num(sk) == 0) - return NULL; - - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - int n; - - c = sk_SSL_CIPHER_value(sk, i); - n = strlen(c->name); - if (n + 1 > len) { - if (p != buf) - --p; - *p = '\0'; - return buf; - } - strcpy(p, c->name); - p += n; - *(p++) = ':'; - len -= n + 1; - } - p[-1] = '\0'; - return (buf); -} - -int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, - unsigned char *p, - int (*put_cb) (const SSL_CIPHER *, - unsigned char *)) -{ - int i, j = 0; - SSL_CIPHER *c; - CERT *ct = s->cert; - unsigned char *q; - int empty_reneg_info_scsv = !s->renegotiate; - /* Set disabled masks for this session */ - ssl_set_client_disabled(s); - - if (sk == NULL) - return (0); - q = p; - if (put_cb == NULL) - put_cb = s->method->put_cipher_by_char; - - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - c = sk_SSL_CIPHER_value(sk, i); - /* Skip disabled ciphers */ - if (c->algorithm_ssl & ct->mask_ssl || - c->algorithm_mkey & ct->mask_k || c->algorithm_auth & ct->mask_a) - continue; -#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL - if (c->id == SSL3_CK_SCSV) { - if (!empty_reneg_info_scsv) - continue; - else - empty_reneg_info_scsv = 0; - } -#endif - j = put_cb(c, p); - p += j; - } - /* - * If p == q, no ciphers; caller indicates an error. Otherwise, add - * applicable SCSVs. - */ - if (p != q) { - if (empty_reneg_info_scsv) { - static SSL_CIPHER scsv = { - 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 - }; - j = put_cb(&scsv, p); - p += j; -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, - "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n"); -#endif - } - if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) { - static SSL_CIPHER scsv = { - 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 - }; - j = put_cb(&scsv, p); - p += j; - } - } - - return (p - q); -} - -STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, - int num, - STACK_OF(SSL_CIPHER) **skp) -{ - const SSL_CIPHER *c; - STACK_OF(SSL_CIPHER) *sk; - int i, n; - - if (s->s3) - s->s3->send_connection_binding = 0; - - n = ssl_put_cipher_by_char(s, NULL, NULL); - if (n == 0 || (num % n) != 0) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); - return (NULL); - } - if ((skp == NULL) || (*skp == NULL)) { - sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */ - if(sk == NULL) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); - return NULL; - } - } else { - sk = *skp; - sk_SSL_CIPHER_zero(sk); - } - - if (s->cert->ciphers_raw) - OPENSSL_free(s->cert->ciphers_raw); - s->cert->ciphers_raw = BUF_memdup(p, num); - if (s->cert->ciphers_raw == NULL) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); - goto err; - } - s->cert->ciphers_rawlen = (size_t)num; - - for (i = 0; i < num; i += n) { - /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */ - if (s->s3 && (n != 3 || !p[0]) && - (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && - (p[n - 1] == (SSL3_CK_SCSV & 0xff))) { - /* SCSV fatal if renegotiating */ - if (s->renegotiate) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); - ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); - goto err; - } - s->s3->send_connection_binding = 1; - p += n; -#ifdef OPENSSL_RI_DEBUG - fprintf(stderr, "SCSV received by server\n"); -#endif - continue; - } - - /* Check for TLS_FALLBACK_SCSV */ - if ((n != 3 || !p[0]) && - (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) && - (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) { - /* - * The SCSV indicates that the client previously tried a higher - * version. Fail if the current version is an unexpected - * downgrade. - */ - if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_INAPPROPRIATE_FALLBACK); - if (s->s3) - ssl3_send_alert(s, SSL3_AL_FATAL, - SSL_AD_INAPPROPRIATE_FALLBACK); - goto err; - } - p += n; - continue; - } - - c = ssl_get_cipher_by_char(s, p); - p += n; - if (c != NULL) { - if (!sk_SSL_CIPHER_push(sk, c)) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); - goto err; - } - } - } - - if (skp != NULL) - *skp = sk; - return (sk); - err: - if ((skp == NULL) || (*skp == NULL)) - sk_SSL_CIPHER_free(sk); - return (NULL); -} - -#ifndef OPENSSL_NO_TLSEXT -/** return a servername extension value if provided in Client Hello, or NULL. - * So far, only host_name types are defined (RFC 3546). - */ - -const char *SSL_get_servername(const SSL *s, const int type) -{ - if (type != TLSEXT_NAMETYPE_host_name) - return NULL; - - return s->session && !s->tlsext_hostname ? - s->session->tlsext_hostname : s->tlsext_hostname; -} - -int SSL_get_servername_type(const SSL *s) -{ - if (s->session - && (!s->tlsext_hostname ? s->session-> - tlsext_hostname : s->tlsext_hostname)) - return TLSEXT_NAMETYPE_host_name; - return -1; -} - -/* - * SSL_select_next_proto implements the standard protocol selection. It is - * expected that this function is called from the callback set by - * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a - * vector of 8-bit, length prefixed byte strings. The length byte itself is - * not included in the length. A byte string of length 0 is invalid. No byte - * string may be truncated. The current, but experimental algorithm for - * selecting the protocol is: 1) If the server doesn't support NPN then this - * is indicated to the callback. In this case, the client application has to - * abort the connection or have a default application level protocol. 2) If - * the server supports NPN, but advertises an empty list then the client - * selects the first protcol in its list, but indicates via the API that this - * fallback case was enacted. 3) Otherwise, the client finds the first - * protocol in the server's list that it supports and selects this protocol. - * This is because it's assumed that the server has better information about - * which protocol a client should use. 4) If the client doesn't support any - * of the server's advertised protocols, then this is treated the same as - * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was - * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. - */ -int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, - const unsigned char *server, - unsigned int server_len, - const unsigned char *client, - unsigned int client_len) -{ - unsigned int i, j; - const unsigned char *result; - int status = OPENSSL_NPN_UNSUPPORTED; - - /* - * For each protocol in server preference order, see if we support it. - */ - for (i = 0; i < server_len;) { - for (j = 0; j < client_len;) { - if (server[i] == client[j] && - memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { - /* We found a match */ - result = &server[i]; - status = OPENSSL_NPN_NEGOTIATED; - goto found; - } - j += client[j]; - j++; - } - i += server[i]; - i++; - } - - /* There's no overlap between our protocols and the server's list. */ - result = client; - status = OPENSSL_NPN_NO_OVERLAP; - - found: - *out = (unsigned char *)result + 1; - *outlen = result[0]; - return status; -} - -# ifndef OPENSSL_NO_NEXTPROTONEG -/* - * SSL_get0_next_proto_negotiated sets *data and *len to point to the - * client's requested protocol for this connection and returns 0. If the - * client didn't request any protocol, then *data is set to NULL. Note that - * the client can request any protocol it chooses. The value returned from - * this function need not be a member of the list of supported protocols - * provided by the callback. - */ -void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, - unsigned *len) -{ - *data = s->next_proto_negotiated; - if (!*data) { - *len = 0; - } else { - *len = s->next_proto_negotiated_len; - } -} - -/* - * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when - * a TLS server needs a list of supported protocols for Next Protocol - * Negotiation. The returned list must be in wire format. The list is - * returned by setting |out| to point to it and |outlen| to its length. This - * memory will not be modified, but one should assume that the SSL* keeps a - * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it - * wishes to advertise. Otherwise, no such extension will be included in the - * ServerHello. - */ -void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, - int (*cb) (SSL *ssl, - const unsigned char - **out, - unsigned int *outlen, - void *arg), void *arg) -{ - ctx->next_protos_advertised_cb = cb; - ctx->next_protos_advertised_cb_arg = arg; -} - -/* - * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a - * client needs to select a protocol from the server's provided list. |out| - * must be set to point to the selected protocol (which may be within |in|). - * The length of the protocol name must be written into |outlen|. The - * server's advertised protocols are provided in |in| and |inlen|. The - * callback can assume that |in| is syntactically valid. The client must - * select a protocol. It is fatal to the connection if this callback returns - * a value other than SSL_TLSEXT_ERR_OK. - */ -void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, - int (*cb) (SSL *s, unsigned char **out, - unsigned char *outlen, - const unsigned char *in, - unsigned int inlen, - void *arg), void *arg) -{ - ctx->next_proto_select_cb = cb; - ctx->next_proto_select_cb_arg = arg; -} -# endif - -/* - * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. - * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit - * length-prefixed strings). Returns 0 on success. - */ -int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, - unsigned protos_len) -{ - if (ctx->alpn_client_proto_list) - OPENSSL_free(ctx->alpn_client_proto_list); - - ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len); - if (!ctx->alpn_client_proto_list) - return 1; - memcpy(ctx->alpn_client_proto_list, protos, protos_len); - ctx->alpn_client_proto_list_len = protos_len; - - return 0; -} - -/* - * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. - * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit - * length-prefixed strings). Returns 0 on success. - */ -int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, - unsigned protos_len) -{ - if (ssl->alpn_client_proto_list) - OPENSSL_free(ssl->alpn_client_proto_list); - - ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len); - if (!ssl->alpn_client_proto_list) - return 1; - memcpy(ssl->alpn_client_proto_list, protos, protos_len); - ssl->alpn_client_proto_list_len = protos_len; - - return 0; -} - -/* - * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is - * called during ClientHello processing in order to select an ALPN protocol - * from the client's list of offered protocols. - */ -void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, - int (*cb) (SSL *ssl, - const unsigned char **out, - unsigned char *outlen, - const unsigned char *in, - unsigned int inlen, - void *arg), void *arg) -{ - ctx->alpn_select_cb = cb; - ctx->alpn_select_cb_arg = arg; -} - -/* - * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from - * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name - * (not including the leading length-prefix byte). If the server didn't - * respond with a negotiated protocol then |*len| will be zero. - */ -void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, - unsigned *len) -{ - *data = NULL; - if (ssl->s3) - *data = ssl->s3->alpn_selected; - if (*data == NULL) - *len = 0; - else - *len = ssl->s3->alpn_selected_len; -} - -#endif /* !OPENSSL_NO_TLSEXT */ - -int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, - const char *label, size_t llen, - const unsigned char *context, size_t contextlen, - int use_context) -{ - if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) - return -1; - - return s->method->ssl3_enc->export_keying_material(s, out, olen, label, - llen, context, - contextlen, use_context); -} - -static unsigned long ssl_session_hash(const SSL_SESSION *a) -{ - const unsigned char *session_id = a->session_id; - unsigned long l; - unsigned char tmp_storage[4]; - - if (a->session_id_length < sizeof(tmp_storage)) { - memset(tmp_storage, 0, sizeof(tmp_storage)); - memcpy(tmp_storage, a->session_id, a->session_id_length); - session_id = tmp_storage; - } - - l = (unsigned long) - ((unsigned long)session_id[0]) | - ((unsigned long)session_id[1] << 8L) | - ((unsigned long)session_id[2] << 16L) | - ((unsigned long)session_id[3] << 24L); - return (l); -} - -/* - * NB: If this function (or indeed the hash function which uses a sort of - * coarser function than this one) is changed, ensure - * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on - * being able to construct an SSL_SESSION that will collide with any existing - * session with a matching session ID. - */ -static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) -{ - if (a->ssl_version != b->ssl_version) - return (1); - if (a->session_id_length != b->session_id_length) - return (1); - return (memcmp(a->session_id, b->session_id, a->session_id_length)); -} - -/* - * These wrapper functions should remain rather than redeclaring - * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each - * variable. The reason is that the functions aren't static, they're exposed - * via ssl.h. - */ -static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) -static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) - -SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) -{ - SSL_CTX *ret = NULL; - - if (meth == NULL) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); - return (NULL); - } -#ifdef OPENSSL_FIPS - if (FIPS_mode() && (meth->version < TLS1_VERSION)) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); - return NULL; - } -#endif - - if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); - goto err; - } - ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); - if (ret == NULL) - goto err; - - memset(ret, 0, sizeof(SSL_CTX)); - - ret->method = meth; - - ret->cert_store = NULL; - ret->session_cache_mode = SSL_SESS_CACHE_SERVER; - ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; - ret->session_cache_head = NULL; - ret->session_cache_tail = NULL; - - /* We take the system default */ - ret->session_timeout = meth->get_timeout(); - - ret->new_session_cb = 0; - ret->remove_session_cb = 0; - ret->get_session_cb = 0; - ret->generate_session_id = 0; - - memset((char *)&ret->stats, 0, sizeof(ret->stats)); - - ret->references = 1; - ret->quiet_shutdown = 0; - -/* ret->cipher=NULL;*/ -/*- - ret->s2->challenge=NULL; - ret->master_key=NULL; - ret->key_arg=NULL; - ret->s2->conn_id=NULL; */ - - ret->info_callback = NULL; - - ret->app_verify_callback = 0; - ret->app_verify_arg = NULL; - - ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; - ret->read_ahead = 0; - ret->msg_callback = 0; - ret->msg_callback_arg = NULL; - ret->verify_mode = SSL_VERIFY_NONE; -#if 0 - ret->verify_depth = -1; /* Don't impose a limit (but x509_lu.c does) */ -#endif - ret->sid_ctx_length = 0; - ret->default_verify_callback = NULL; - if ((ret->cert = ssl_cert_new()) == NULL) - goto err; - - ret->default_passwd_callback = 0; - ret->default_passwd_callback_userdata = NULL; - ret->client_cert_cb = 0; - ret->app_gen_cookie_cb = 0; - ret->app_verify_cookie_cb = 0; - - ret->sessions = lh_SSL_SESSION_new(); - if (ret->sessions == NULL) - goto err; - ret->cert_store = X509_STORE_new(); - if (ret->cert_store == NULL) - goto err; - - ssl_create_cipher_list(ret->method, - &ret->cipher_list, &ret->cipher_list_by_id, - meth->version == - SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, - ret->cert); - if (ret->cipher_list == NULL || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); - goto err2; - } - - ret->param = X509_VERIFY_PARAM_new(); - if (!ret->param) - goto err; - - if ((ret->rsa_md5 = EVP_get_digestbyname("ssl2-md5")) == NULL) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); - goto err2; - } - if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); - goto err2; - } - if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { - SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); - goto err2; - } - - if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) - goto err; - - CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); - - ret->extra_certs = NULL; - /* No compression for DTLS */ - if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) - ret->comp_methods = SSL_COMP_get_compression_methods(); - - ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; - -#ifndef OPENSSL_NO_TLSEXT - ret->tlsext_servername_callback = 0; - ret->tlsext_servername_arg = NULL; - /* Setup RFC4507 ticket keys */ - if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0) - || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) - || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) - ret->options |= SSL_OP_NO_TICKET; - - ret->tlsext_status_cb = 0; - ret->tlsext_status_arg = NULL; - -# ifndef OPENSSL_NO_NEXTPROTONEG - ret->next_protos_advertised_cb = 0; - ret->next_proto_select_cb = 0; -# endif -#endif -#ifndef OPENSSL_NO_PSK - ret->psk_identity_hint = NULL; - ret->psk_client_callback = NULL; - ret->psk_server_callback = NULL; -#endif -#ifndef OPENSSL_NO_SRP - SSL_CTX_SRP_CTX_init(ret); -#endif -#ifndef OPENSSL_NO_BUF_FREELISTS - ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT; - ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); - if (!ret->rbuf_freelist) - goto err; - ret->rbuf_freelist->chunklen = 0; - ret->rbuf_freelist->len = 0; - ret->rbuf_freelist->head = NULL; - ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); - if (!ret->wbuf_freelist) - goto err; - ret->wbuf_freelist->chunklen = 0; - ret->wbuf_freelist->len = 0; - ret->wbuf_freelist->head = NULL; -#endif -#ifndef OPENSSL_NO_ENGINE - ret->client_cert_engine = NULL; -# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO -# define eng_strx(x) #x -# define eng_str(x) eng_strx(x) - /* Use specific client engine automatically... ignore errors */ - { - ENGINE *eng; - eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); - if (!eng) { - ERR_clear_error(); - ENGINE_load_builtin_engines(); - eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); - } - if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) - ERR_clear_error(); - } -# endif -#endif - /* - * Default is to connect to non-RI servers. When RI is more widely - * deployed might change this. - */ - ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; - - /* - * Disable SSLv2 by default, callers that want to enable SSLv2 will have to - * explicitly clear this option via either of SSL_CTX_clear_options() or - * SSL_clear_options(). - */ - ret->options |= SSL_OP_NO_SSLv2; - - return (ret); - err: - SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); - err2: - if (ret != NULL) - SSL_CTX_free(ret); - return (NULL); -} - -#if 0 -static void SSL_COMP_free(SSL_COMP *comp) -{ - OPENSSL_free(comp); -} -#endif - -#ifndef OPENSSL_NO_BUF_FREELISTS -static void ssl_buf_freelist_free(SSL3_BUF_FREELIST *list) -{ - SSL3_BUF_FREELIST_ENTRY *ent, *next; - for (ent = list->head; ent; ent = next) { - next = ent->next; - OPENSSL_free(ent); - } - OPENSSL_free(list); -} -#endif - -void SSL_CTX_free(SSL_CTX *a) -{ - int i; - - if (a == NULL) - return; - - i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); -#ifdef REF_PRINT - REF_PRINT("SSL_CTX", a); -#endif - if (i > 0) - return; -#ifdef REF_CHECK - if (i < 0) { - fprintf(stderr, "SSL_CTX_free, bad reference count\n"); - abort(); /* ok */ - } -#endif - - if (a->param) - X509_VERIFY_PARAM_free(a->param); - - /* - * Free internal session cache. However: the remove_cb() may reference - * the ex_data of SSL_CTX, thus the ex_data store can only be removed - * after the sessions were flushed. - * As the ex_data handling routines might also touch the session cache, - * the most secure solution seems to be: empty (flush) the cache, then - * free ex_data, then finally free the cache. - * (See ticket [openssl.org #212].) - */ - if (a->sessions != NULL) - SSL_CTX_flush_sessions(a, 0); - - CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); - - if (a->sessions != NULL) - lh_SSL_SESSION_free(a->sessions); - - if (a->cert_store != NULL) - X509_STORE_free(a->cert_store); - if (a->cipher_list != NULL) - sk_SSL_CIPHER_free(a->cipher_list); - if (a->cipher_list_by_id != NULL) - sk_SSL_CIPHER_free(a->cipher_list_by_id); - if (a->cert != NULL) - ssl_cert_free(a->cert); - if (a->client_CA != NULL) - sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); - if (a->extra_certs != NULL) - sk_X509_pop_free(a->extra_certs, X509_free); -#if 0 /* This should never be done, since it - * removes a global database */ - if (a->comp_methods != NULL) - sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free); -#else - a->comp_methods = NULL; -#endif - -#ifndef OPENSSL_NO_SRTP - if (a->srtp_profiles) - sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); -#endif - -#ifndef OPENSSL_NO_PSK - if (a->psk_identity_hint) - OPENSSL_free(a->psk_identity_hint); -#endif -#ifndef OPENSSL_NO_SRP - SSL_CTX_SRP_CTX_free(a); -#endif -#ifndef OPENSSL_NO_ENGINE - if (a->client_cert_engine) - ENGINE_finish(a->client_cert_engine); -#endif - -#ifndef OPENSSL_NO_BUF_FREELISTS - if (a->wbuf_freelist) - ssl_buf_freelist_free(a->wbuf_freelist); - if (a->rbuf_freelist) - ssl_buf_freelist_free(a->rbuf_freelist); -#endif -#ifndef OPENSSL_NO_TLSEXT -# ifndef OPENSSL_NO_EC - if (a->tlsext_ecpointformatlist) - OPENSSL_free(a->tlsext_ecpointformatlist); - if (a->tlsext_ellipticcurvelist) - OPENSSL_free(a->tlsext_ellipticcurvelist); -# endif /* OPENSSL_NO_EC */ - if (a->alpn_client_proto_list != NULL) - OPENSSL_free(a->alpn_client_proto_list); -#endif - - OPENSSL_free(a); -} - -void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) -{ - ctx->default_passwd_callback = cb; -} - -void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) -{ - ctx->default_passwd_callback_userdata = u; -} - -void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, - int (*cb) (X509_STORE_CTX *, void *), - void *arg) -{ - ctx->app_verify_callback = cb; - ctx->app_verify_arg = arg; -} - -void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, - int (*cb) (int, X509_STORE_CTX *)) -{ - ctx->verify_mode = mode; - ctx->default_verify_callback = cb; -} - -void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) -{ - X509_VERIFY_PARAM_set_depth(ctx->param, depth); -} - -void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), - void *arg) -{ - ssl_cert_set_cert_cb(c->cert, cb, arg); -} - -void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) -{ - ssl_cert_set_cert_cb(s->cert, cb, arg); -} - -void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) -{ - CERT_PKEY *cpk; - int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign; - int rsa_enc_export, dh_rsa_export, dh_dsa_export; - int rsa_tmp_export, dh_tmp_export, kl; - unsigned long mask_k, mask_a, emask_k, emask_a; -#ifndef OPENSSL_NO_ECDSA - int have_ecc_cert, ecdsa_ok, ecc_pkey_size; -#endif -#ifndef OPENSSL_NO_ECDH - int have_ecdh_tmp, ecdh_ok; -#endif -#ifndef OPENSSL_NO_EC - X509 *x = NULL; - EVP_PKEY *ecc_pkey = NULL; - int signature_nid = 0, pk_nid = 0, md_nid = 0; -#endif - if (c == NULL) - return; - - kl = SSL_C_EXPORT_PKEYLENGTH(cipher); - -#ifndef OPENSSL_NO_RSA - rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); - rsa_tmp_export = (c->rsa_tmp_cb != NULL || - (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl)); -#else - rsa_tmp = rsa_tmp_export = 0; -#endif -#ifndef OPENSSL_NO_DH - dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL); - dh_tmp_export = (c->dh_tmp_cb != NULL || - (dh_tmp && DH_size(c->dh_tmp) * 8 <= kl)); -#else - dh_tmp = dh_tmp_export = 0; -#endif - -#ifndef OPENSSL_NO_ECDH - have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto); -#endif - cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); - rsa_enc = cpk->valid_flags & CERT_PKEY_VALID; - rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); - cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); - rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN; - cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); - dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN; - cpk = &(c->pkeys[SSL_PKEY_DH_RSA]); - dh_rsa = cpk->valid_flags & CERT_PKEY_VALID; - dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); - cpk = &(c->pkeys[SSL_PKEY_DH_DSA]); -/* FIX THIS EAY EAY EAY */ - dh_dsa = cpk->valid_flags & CERT_PKEY_VALID; - dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); - cpk = &(c->pkeys[SSL_PKEY_ECC]); -#ifndef OPENSSL_NO_EC - have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID; -#endif - mask_k = 0; - mask_a = 0; - emask_k = 0; - emask_a = 0; - -#ifdef CIPHER_DEBUG - fprintf(stderr, - "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", - rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc, - rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa); -#endif - - cpk = &(c->pkeys[SSL_PKEY_GOST01]); - if (cpk->x509 != NULL && cpk->privatekey != NULL) { - mask_k |= SSL_kGOST; - mask_a |= SSL_aGOST01; - } - cpk = &(c->pkeys[SSL_PKEY_GOST94]); - if (cpk->x509 != NULL && cpk->privatekey != NULL) { - mask_k |= SSL_kGOST; - mask_a |= SSL_aGOST94; - } - - if (rsa_enc || (rsa_tmp && rsa_sign)) - mask_k |= SSL_kRSA; - if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) - emask_k |= SSL_kRSA; - -#if 0 - /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ - if ((dh_tmp || dh_rsa || dh_dsa) && (rsa_enc || rsa_sign || dsa_sign)) - mask_k |= SSL_kEDH; - if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && - (rsa_enc || rsa_sign || dsa_sign)) - emask_k |= SSL_kEDH; -#endif - - if (dh_tmp_export) - emask_k |= SSL_kEDH; - - if (dh_tmp) - mask_k |= SSL_kEDH; - - if (dh_rsa) - mask_k |= SSL_kDHr; - if (dh_rsa_export) - emask_k |= SSL_kDHr; - - if (dh_dsa) - mask_k |= SSL_kDHd; - if (dh_dsa_export) - emask_k |= SSL_kDHd; - - if (mask_k & (SSL_kDHr | SSL_kDHd)) - mask_a |= SSL_aDH; - - if (rsa_enc || rsa_sign) { - mask_a |= SSL_aRSA; - emask_a |= SSL_aRSA; - } - - if (dsa_sign) { - mask_a |= SSL_aDSS; - emask_a |= SSL_aDSS; - } - - mask_a |= SSL_aNULL; - emask_a |= SSL_aNULL; - -#ifndef OPENSSL_NO_KRB5 - mask_k |= SSL_kKRB5; - mask_a |= SSL_aKRB5; - emask_k |= SSL_kKRB5; - emask_a |= SSL_aKRB5; -#endif - - /* - * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites - * depending on the key usage extension. - */ -#ifndef OPENSSL_NO_EC - if (have_ecc_cert) { - cpk = &c->pkeys[SSL_PKEY_ECC]; - x = cpk->x509; - /* This call populates extension flags (ex_flags) */ - X509_check_purpose(x, -1, 0); -# ifndef OPENSSL_NO_ECDH - ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? - (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; -# endif - ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? - (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; - if (!(cpk->valid_flags & CERT_PKEY_SIGN)) - ecdsa_ok = 0; - ecc_pkey = X509_get_pubkey(x); - ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0; - EVP_PKEY_free(ecc_pkey); - if ((x->sig_alg) && (x->sig_alg->algorithm)) { - signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); - OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); - } -# ifndef OPENSSL_NO_ECDH - if (ecdh_ok) { - - if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { - mask_k |= SSL_kECDHr; - mask_a |= SSL_aECDH; - if (ecc_pkey_size <= 163) { - emask_k |= SSL_kECDHr; - emask_a |= SSL_aECDH; - } - } - - if (pk_nid == NID_X9_62_id_ecPublicKey) { - mask_k |= SSL_kECDHe; - mask_a |= SSL_aECDH; - if (ecc_pkey_size <= 163) { - emask_k |= SSL_kECDHe; - emask_a |= SSL_aECDH; - } - } - } -# endif -# ifndef OPENSSL_NO_ECDSA - if (ecdsa_ok) { - mask_a |= SSL_aECDSA; - emask_a |= SSL_aECDSA; - } -# endif - } -#endif - -#ifndef OPENSSL_NO_ECDH - if (have_ecdh_tmp) { - mask_k |= SSL_kEECDH; - emask_k |= SSL_kEECDH; - } -#endif - -#ifndef OPENSSL_NO_PSK - mask_k |= SSL_kPSK; - mask_a |= SSL_aPSK; - emask_k |= SSL_kPSK; - emask_a |= SSL_aPSK; -#endif - - c->mask_k = mask_k; - c->mask_a = mask_a; - c->export_mask_k = emask_k; - c->export_mask_a = emask_a; - c->valid = 1; -} - -/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ -#define ku_reject(x, usage) \ - (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) - -#ifndef OPENSSL_NO_EC - -int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) -{ - unsigned long alg_k, alg_a; - EVP_PKEY *pkey = NULL; - int keysize = 0; - int signature_nid = 0, md_nid = 0, pk_nid = 0; - const SSL_CIPHER *cs = s->s3->tmp.new_cipher; - - alg_k = cs->algorithm_mkey; - alg_a = cs->algorithm_auth; - - if (SSL_C_IS_EXPORT(cs)) { - /* ECDH key length in export ciphers must be <= 163 bits */ - pkey = X509_get_pubkey(x); - if (pkey == NULL) - return 0; - keysize = EVP_PKEY_bits(pkey); - EVP_PKEY_free(pkey); - if (keysize > 163) - return 0; - } - - /* This call populates the ex_flags field correctly */ - X509_check_purpose(x, -1, 0); - if ((x->sig_alg) && (x->sig_alg->algorithm)) { - signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); - OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); - } - if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) { - /* key usage, if present, must allow key agreement */ - if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) { - SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, - SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); - return 0; - } - if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) { - /* signature alg must be ECDSA */ - if (pk_nid != NID_X9_62_id_ecPublicKey) { - SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, - SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); - return 0; - } - } - if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) { - /* signature alg must be RSA */ - - if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) { - SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, - SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); - return 0; - } - } - } - if (alg_a & SSL_aECDSA) { - /* key usage, if present, must allow signing */ - if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) { - SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, - SSL_R_ECC_CERT_NOT_FOR_SIGNING); - return 0; - } - } - - return 1; /* all checks are ok */ -} - -#endif - -static int ssl_get_server_cert_index(const SSL *s) -{ - int idx; - idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); - if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) - idx = SSL_PKEY_RSA_SIGN; - if (idx == -1) - SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); - return idx; -} - -CERT_PKEY *ssl_get_server_send_pkey(const SSL *s) -{ - CERT *c; - int i; - - c = s->cert; - if (!s->s3 || !s->s3->tmp.new_cipher) - return NULL; - ssl_set_cert_masks(c, s->s3->tmp.new_cipher); - -#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL - /* - * Broken protocol test: return last used certificate: which may mismatch - * the one expected. - */ - if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL) - return c->key; -#endif - - i = ssl_get_server_cert_index(s); - - /* This may or may not be an error. */ - if (i < 0) - return NULL; - - /* May be NULL. */ - return &c->pkeys[i]; -} - -EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, - const EVP_MD **pmd) -{ - unsigned long alg_a; - CERT *c; - int idx = -1; - - alg_a = cipher->algorithm_auth; - c = s->cert; - -#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL - /* - * Broken protocol test: use last key: which may mismatch the one - * expected. - */ - if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL) - idx = c->key - c->pkeys; - else -#endif - - if ((alg_a & SSL_aDSS) && - (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) - idx = SSL_PKEY_DSA_SIGN; - else if (alg_a & SSL_aRSA) { - if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) - idx = SSL_PKEY_RSA_SIGN; - else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) - idx = SSL_PKEY_RSA_ENC; - } else if ((alg_a & SSL_aECDSA) && - (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) - idx = SSL_PKEY_ECC; - if (idx == -1) { - SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); - return (NULL); - } - if (pmd) - *pmd = c->pkeys[idx].digest; - return c->pkeys[idx].privatekey; -} - -#ifndef OPENSSL_NO_TLSEXT -int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, - size_t *serverinfo_length) -{ - CERT *c = NULL; - int i = 0; - *serverinfo_length = 0; - - c = s->cert; - i = ssl_get_server_cert_index(s); - - if (i == -1) - return 0; - if (c->pkeys[i].serverinfo == NULL) - return 0; - - *serverinfo = c->pkeys[i].serverinfo; - *serverinfo_length = c->pkeys[i].serverinfo_length; - return 1; -} -#endif - -void ssl_update_cache(SSL *s, int mode) -{ - int i; - - /* - * If the session_id_length is 0, we are not supposed to cache it, and it - * would be rather hard to do anyway :-) - */ - if (s->session->session_id_length == 0) - return; - - i = s->session_ctx->session_cache_mode; - if ((i & mode) && (!s->hit) - && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) - || SSL_CTX_add_session(s->session_ctx, s->session)) - && (s->session_ctx->new_session_cb != NULL)) { - CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); - if (!s->session_ctx->new_session_cb(s, s->session)) - SSL_SESSION_free(s->session); - } - - /* auto flush every 255 connections */ - if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { - if ((((mode & SSL_SESS_CACHE_CLIENT) - ? s->session_ctx->stats.sess_connect_good - : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { - SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); - } - } -} - -const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) -{ - return ctx->method; -} - -const SSL_METHOD *SSL_get_ssl_method(SSL *s) -{ - return (s->method); -} - -int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) -{ - int conn = -1; - int ret = 1; - - if (s->method != meth) { - if (s->handshake_func != NULL) - conn = (s->handshake_func == s->method->ssl_connect); - - if (s->method->version == meth->version) - s->method = meth; - else { - s->method->ssl_free(s); - s->method = meth; - ret = s->method->ssl_new(s); - } - - if (conn == 1) - s->handshake_func = meth->ssl_connect; - else if (conn == 0) - s->handshake_func = meth->ssl_accept; - } - return (ret); -} - -int SSL_get_error(const SSL *s, int i) -{ - int reason; - unsigned long l; - BIO *bio; - - if (i > 0) - return (SSL_ERROR_NONE); - - /* - * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, - * where we do encode the error - */ - if ((l = ERR_peek_error()) != 0) { - if (ERR_GET_LIB(l) == ERR_LIB_SYS) - return (SSL_ERROR_SYSCALL); - else - return (SSL_ERROR_SSL); - } - - if ((i < 0) && SSL_want_read(s)) { - bio = SSL_get_rbio(s); - if (BIO_should_read(bio)) - return (SSL_ERROR_WANT_READ); - else if (BIO_should_write(bio)) - /* - * This one doesn't make too much sense ... We never try to write - * to the rbio, and an application program where rbio and wbio - * are separate couldn't even know what it should wait for. - * However if we ever set s->rwstate incorrectly (so that we have - * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and - * wbio *are* the same, this test works around that bug; so it - * might be safer to keep it. - */ - return (SSL_ERROR_WANT_WRITE); - else if (BIO_should_io_special(bio)) { - reason = BIO_get_retry_reason(bio); - if (reason == BIO_RR_CONNECT) - return (SSL_ERROR_WANT_CONNECT); - else if (reason == BIO_RR_ACCEPT) - return (SSL_ERROR_WANT_ACCEPT); - else - return (SSL_ERROR_SYSCALL); /* unknown */ - } - } - - if ((i < 0) && SSL_want_write(s)) { - bio = SSL_get_wbio(s); - if (BIO_should_write(bio)) - return (SSL_ERROR_WANT_WRITE); - else if (BIO_should_read(bio)) - /* - * See above (SSL_want_read(s) with BIO_should_write(bio)) - */ - return (SSL_ERROR_WANT_READ); - else if (BIO_should_io_special(bio)) { - reason = BIO_get_retry_reason(bio); - if (reason == BIO_RR_CONNECT) - return (SSL_ERROR_WANT_CONNECT); - else if (reason == BIO_RR_ACCEPT) - return (SSL_ERROR_WANT_ACCEPT); - else - return (SSL_ERROR_SYSCALL); - } - } - if ((i < 0) && SSL_want_x509_lookup(s)) { - return (SSL_ERROR_WANT_X509_LOOKUP); - } - - if (i == 0) { - if (s->version == SSL2_VERSION) { - /* assume it is the socket being closed */ - return (SSL_ERROR_ZERO_RETURN); - } else { - if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && - (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) - return (SSL_ERROR_ZERO_RETURN); - } - } - return (SSL_ERROR_SYSCALL); -} - -int SSL_do_handshake(SSL *s) -{ - int ret = 1; - - if (s->handshake_func == NULL) { - SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); - return (-1); - } - - s->method->ssl_renegotiate_check(s); - - if (SSL_in_init(s) || SSL_in_before(s)) { - ret = s->handshake_func(s); - } - return (ret); -} - -/* - * For the next 2 functions, SSL_clear() sets shutdown and so one of these - * calls will reset it - */ -void SSL_set_accept_state(SSL *s) -{ - s->server = 1; - s->shutdown = 0; - s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE; - s->handshake_func = s->method->ssl_accept; - /* clear the current cipher */ - ssl_clear_cipher_ctx(s); - ssl_clear_hash_ctx(&s->read_hash); - ssl_clear_hash_ctx(&s->write_hash); -} - -void SSL_set_connect_state(SSL *s) -{ - s->server = 0; - s->shutdown = 0; - s->state = SSL_ST_CONNECT | SSL_ST_BEFORE; - s->handshake_func = s->method->ssl_connect; - /* clear the current cipher */ - ssl_clear_cipher_ctx(s); - ssl_clear_hash_ctx(&s->read_hash); - ssl_clear_hash_ctx(&s->write_hash); -} - -int ssl_undefined_function(SSL *s) -{ - SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return (0); -} - -int ssl_undefined_void_function(void) -{ - SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, - ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return (0); -} - -int ssl_undefined_const_function(const SSL *s) -{ - SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION, - ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return (0); -} - -SSL_METHOD *ssl_bad_method(int ver) -{ - SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return (NULL); -} - -const char *SSL_get_version(const SSL *s) -{ - if (s->version == TLS1_2_VERSION) - return ("TLSv1.2"); - else if (s->version == TLS1_1_VERSION) - return ("TLSv1.1"); - else if (s->version == TLS1_VERSION) - return ("TLSv1"); - else if (s->version == SSL3_VERSION) - return ("SSLv3"); - else if (s->version == SSL2_VERSION) - return ("SSLv2"); - else if (s->version == DTLS1_BAD_VER) - return ("DTLSv0.9"); - else if (s->version == DTLS1_VERSION) - return ("DTLSv1"); - else if (s->version == DTLS1_2_VERSION) - return ("DTLSv1.2"); - else - return ("unknown"); -} - -SSL *SSL_dup(SSL *s) -{ - STACK_OF(X509_NAME) *sk; - X509_NAME *xn; - SSL *ret; - int i; - - if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) - return (NULL); - - ret->version = s->version; - ret->type = s->type; - ret->method = s->method; - - if (s->session != NULL) { - /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ - SSL_copy_session_id(ret, s); - } else { - /* - * No session has been established yet, so we have to expect that - * s->cert or ret->cert will be changed later -- they should not both - * point to the same object, and thus we can't use - * SSL_copy_session_id. - */ - - ret->method->ssl_free(ret); - ret->method = s->method; - ret->method->ssl_new(ret); - - if (s->cert != NULL) { - if (ret->cert != NULL) { - ssl_cert_free(ret->cert); - } - ret->cert = ssl_cert_dup(s->cert); - if (ret->cert == NULL) - goto err; - } - - SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length); - } - - ret->options = s->options; - ret->mode = s->mode; - SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); - SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); - ret->msg_callback = s->msg_callback; - ret->msg_callback_arg = s->msg_callback_arg; - SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); - SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); - ret->generate_session_id = s->generate_session_id; - - SSL_set_info_callback(ret, SSL_get_info_callback(s)); - - ret->debug = s->debug; - - /* copy app data, a little dangerous perhaps */ - if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) - goto err; - - /* setup rbio, and wbio */ - if (s->rbio != NULL) { - if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) - goto err; - } - if (s->wbio != NULL) { - if (s->wbio != s->rbio) { - if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) - goto err; - } else - ret->wbio = ret->rbio; - } - ret->rwstate = s->rwstate; - ret->in_handshake = s->in_handshake; - ret->handshake_func = s->handshake_func; - ret->server = s->server; - ret->renegotiate = s->renegotiate; - ret->new_session = s->new_session; - ret->quiet_shutdown = s->quiet_shutdown; - ret->shutdown = s->shutdown; - ret->state = s->state; /* SSL_dup does not really work at any state, - * though */ - ret->rstate = s->rstate; - ret->init_num = 0; /* would have to copy ret->init_buf, - * ret->init_msg, ret->init_num, - * ret->init_off */ - ret->hit = s->hit; - - X509_VERIFY_PARAM_inherit(ret->param, s->param); - - /* dup the cipher_list and cipher_list_by_id stacks */ - if (s->cipher_list != NULL) { - if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) - goto err; - } - if (s->cipher_list_by_id != NULL) - if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) - == NULL) - goto err; - - /* Dup the client_CA list */ - if (s->client_CA != NULL) { - if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) - goto err; - ret->client_CA = sk; - for (i = 0; i < sk_X509_NAME_num(sk); i++) { - xn = sk_X509_NAME_value(sk, i); - if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { - X509_NAME_free(xn); - goto err; - } - } - } - - if (0) { - err: - if (ret != NULL) - SSL_free(ret); - ret = NULL; - } - return (ret); -} - -void ssl_clear_cipher_ctx(SSL *s) -{ - if (s->enc_read_ctx != NULL) { - EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); - OPENSSL_free(s->enc_read_ctx); - s->enc_read_ctx = NULL; - } - if (s->enc_write_ctx != NULL) { - EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); - OPENSSL_free(s->enc_write_ctx); - s->enc_write_ctx = NULL; - } -#ifndef OPENSSL_NO_COMP - if (s->expand != NULL) { - COMP_CTX_free(s->expand); - s->expand = NULL; - } - if (s->compress != NULL) { - COMP_CTX_free(s->compress); - s->compress = NULL; - } -#endif -} - -X509 *SSL_get_certificate(const SSL *s) -{ - if (s->cert != NULL) - return (s->cert->key->x509); - else - return (NULL); -} - -EVP_PKEY *SSL_get_privatekey(const SSL *s) -{ - if (s->cert != NULL) - return (s->cert->key->privatekey); - else - return (NULL); -} - -X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) -{ - if (ctx->cert != NULL) - return ctx->cert->key->x509; - else - return NULL; -} - -EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) -{ - if (ctx->cert != NULL) - return ctx->cert->key->privatekey; - else - return NULL; -} - -const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) -{ - if ((s->session != NULL) && (s->session->cipher != NULL)) - return (s->session->cipher); - return (NULL); -} - -#ifdef OPENSSL_NO_COMP -const COMP_METHOD *SSL_get_current_compression(SSL *s) -{ - return NULL; -} - -const COMP_METHOD *SSL_get_current_expansion(SSL *s) -{ - return NULL; -} -#else - -const COMP_METHOD *SSL_get_current_compression(SSL *s) -{ - if (s->compress != NULL) - return (s->compress->meth); - return (NULL); -} - -const COMP_METHOD *SSL_get_current_expansion(SSL *s) -{ - if (s->expand != NULL) - return (s->expand->meth); - return (NULL); -} -#endif - -int ssl_init_wbio_buffer(SSL *s, int push) -{ - BIO *bbio; - - if (s->bbio == NULL) { - bbio = BIO_new(BIO_f_buffer()); - if (bbio == NULL) - return (0); - s->bbio = bbio; - } else { - bbio = s->bbio; - if (s->bbio == s->wbio) - s->wbio = BIO_pop(s->wbio); - } - (void)BIO_reset(bbio); -/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ - if (!BIO_set_read_buffer_size(bbio, 1)) { - SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); - return (0); - } - if (push) { - if (s->wbio != bbio) - s->wbio = BIO_push(bbio, s->wbio); - } else { - if (s->wbio == bbio) - s->wbio = BIO_pop(bbio); - } - return (1); -} - -void ssl_free_wbio_buffer(SSL *s) -{ - if (s->bbio == NULL) - return; - - if (s->bbio == s->wbio) { - /* remove buffering */ - s->wbio = BIO_pop(s->wbio); -#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids - * adding one more preprocessor symbol */ - assert(s->wbio != NULL); -#endif - } - BIO_free(s->bbio); - s->bbio = NULL; -} - -void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) -{ - ctx->quiet_shutdown = mode; -} - -int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) -{ - return (ctx->quiet_shutdown); -} - -void SSL_set_quiet_shutdown(SSL *s, int mode) -{ - s->quiet_shutdown = mode; -} - -int SSL_get_quiet_shutdown(const SSL *s) -{ - return (s->quiet_shutdown); -} - -void SSL_set_shutdown(SSL *s, int mode) -{ - s->shutdown = mode; -} - -int SSL_get_shutdown(const SSL *s) -{ - return (s->shutdown); -} - -int SSL_version(const SSL *s) -{ - return (s->version); -} - -SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) -{ - return (ssl->ctx); -} - -SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) -{ - CERT *ocert = ssl->cert; - if (ssl->ctx == ctx) - return ssl->ctx; -#ifndef OPENSSL_NO_TLSEXT - if (ctx == NULL) - ctx = ssl->initial_ctx; -#endif - ssl->cert = ssl_cert_dup(ctx->cert); - if (ocert) { - int i; - /* Preserve any already negotiated parameters */ - if (ssl->server) { - ssl->cert->peer_sigalgs = ocert->peer_sigalgs; - ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen; - ocert->peer_sigalgs = NULL; - ssl->cert->ciphers_raw = ocert->ciphers_raw; - ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen; - ocert->ciphers_raw = NULL; - } - for (i = 0; i < SSL_PKEY_NUM; i++) { - ssl->cert->pkeys[i].digest = ocert->pkeys[i].digest; - } -#ifndef OPENSSL_NO_TLSEXT - ssl->cert->alpn_proposed = ocert->alpn_proposed; - ssl->cert->alpn_proposed_len = ocert->alpn_proposed_len; - ocert->alpn_proposed = NULL; - ssl->cert->alpn_sent = ocert->alpn_sent; - - if (!custom_exts_copy_flags(&ssl->cert->srv_ext, &ocert->srv_ext)) - return NULL; -#endif - ssl_cert_free(ocert); - } - - /* - * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), - * so setter APIs must prevent invalid lengths from entering the system. - */ - OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); - - /* - * If the session ID context matches that of the parent SSL_CTX, - * inherit it from the new SSL_CTX as well. If however the context does - * not match (i.e., it was set per-ssl with SSL_set_session_id_context), - * leave it unchanged. - */ - if ((ssl->ctx != NULL) && - (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && - (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { - ssl->sid_ctx_length = ctx->sid_ctx_length; - memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); - } - - CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); - if (ssl->ctx != NULL) - SSL_CTX_free(ssl->ctx); /* decrement reference count */ - ssl->ctx = ctx; - - return (ssl->ctx); -} - -#ifndef OPENSSL_NO_STDIO -int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) -{ - return (X509_STORE_set_default_paths(ctx->cert_store)); -} - -int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, - const char *CApath) -{ - return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); -} -#endif - -void SSL_set_info_callback(SSL *ssl, - void (*cb) (const SSL *ssl, int type, int val)) -{ - ssl->info_callback = cb; -} - -/* - * One compiler (Diab DCC) doesn't like argument names in returned function - * pointer. - */ -void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , - int /* type */ , - int /* val */ ) { - return ssl->info_callback; -} - -int SSL_state(const SSL *ssl) -{ - return (ssl->state); -} - -void SSL_set_state(SSL *ssl, int state) -{ - ssl->state = state; -} - -void SSL_set_verify_result(SSL *ssl, long arg) -{ - ssl->verify_result = arg; -} - -long SSL_get_verify_result(const SSL *ssl) -{ - return (ssl->verify_result); -} - -int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, - CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) -{ - return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, - new_func, dup_func, free_func); -} - -int SSL_set_ex_data(SSL *s, int idx, void *arg) -{ - return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); -} - -void *SSL_get_ex_data(const SSL *s, int idx) -{ - return (CRYPTO_get_ex_data(&s->ex_data, idx)); -} - -int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, - CRYPTO_EX_dup *dup_func, - CRYPTO_EX_free *free_func) -{ - return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, - new_func, dup_func, free_func); -} - -int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) -{ - return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); -} - -void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) -{ - return (CRYPTO_get_ex_data(&s->ex_data, idx)); -} - -int ssl_ok(SSL *s) -{ - return (1); -} - -X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) -{ - return (ctx->cert_store); -} - -void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) -{ - if (ctx->cert_store != NULL) - X509_STORE_free(ctx->cert_store); - ctx->cert_store = store; -} - -int SSL_want(const SSL *s) -{ - return (s->rwstate); -} - -/** - * \brief Set the callback for generating temporary RSA keys. - * \param ctx the SSL context. - * \param cb the callback - */ - -#ifndef OPENSSL_NO_RSA -void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl, - int is_export, - int keylength)) -{ - SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb); -} - -void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl, - int is_export, - int keylength)) -{ - SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb); -} -#endif - -#ifdef DOXYGEN -/** - * \brief The RSA temporary key callback function. - * \param ssl the SSL session. - * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. - * \param keylength if \c is_export is \c TRUE, then \c keylength is the size - * of the required key in bits. - * \return the temporary RSA key. - * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback - */ - -RSA *cb(SSL *ssl, int is_export, int keylength) -{ -} -#endif - -/** - * \brief Set the callback for generating temporary DH keys. - * \param ctx the SSL context. - * \param dh the callback - */ - -#ifndef OPENSSL_NO_DH -void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, - DH *(*dh) (SSL *ssl, int is_export, - int keylength)) -{ - SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); -} - -void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, - int keylength)) -{ - SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); -} -#endif - -#ifndef OPENSSL_NO_ECDH -void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, - EC_KEY *(*ecdh) (SSL *ssl, int is_export, - int keylength)) -{ - SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, - (void (*)(void))ecdh); -} - -void SSL_set_tmp_ecdh_callback(SSL *ssl, - EC_KEY *(*ecdh) (SSL *ssl, int is_export, - int keylength)) -{ - SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh); -} -#endif - -#ifndef OPENSSL_NO_PSK -int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) -{ - if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { - SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, - SSL_R_DATA_LENGTH_TOO_LONG); - return 0; - } - if (ctx->psk_identity_hint != NULL) - OPENSSL_free(ctx->psk_identity_hint); - if (identity_hint != NULL) { - ctx->psk_identity_hint = BUF_strdup(identity_hint); - if (ctx->psk_identity_hint == NULL) - return 0; - } else - ctx->psk_identity_hint = NULL; - return 1; -} - -int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) -{ - if (s == NULL) - return 0; - - if (s->session == NULL) - return 1; /* session not created yet, ignored */ - - if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { - SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); - return 0; - } - if (s->session->psk_identity_hint != NULL) - OPENSSL_free(s->session->psk_identity_hint); - if (identity_hint != NULL) { - s->session->psk_identity_hint = BUF_strdup(identity_hint); - if (s->session->psk_identity_hint == NULL) - return 0; - } else - s->session->psk_identity_hint = NULL; - return 1; -} - -const char *SSL_get_psk_identity_hint(const SSL *s) -{ - if (s == NULL || s->session == NULL) - return NULL; - return (s->session->psk_identity_hint); -} - -const char *SSL_get_psk_identity(const SSL *s) -{ - if (s == NULL || s->session == NULL) - return NULL; - return (s->session->psk_identity); -} - -void SSL_set_psk_client_callback(SSL *s, - unsigned int (*cb) (SSL *ssl, - const char *hint, - char *identity, - unsigned int - max_identity_len, - unsigned char *psk, - unsigned int - max_psk_len)) -{ - s->psk_client_callback = cb; -} - -void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, - unsigned int (*cb) (SSL *ssl, - const char *hint, - char *identity, - unsigned int - max_identity_len, - unsigned char *psk, - unsigned int - max_psk_len)) -{ - ctx->psk_client_callback = cb; -} - -void SSL_set_psk_server_callback(SSL *s, - unsigned int (*cb) (SSL *ssl, - const char *identity, - unsigned char *psk, - unsigned int - max_psk_len)) -{ - s->psk_server_callback = cb; -} - -void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, - unsigned int (*cb) (SSL *ssl, - const char *identity, - unsigned char *psk, - unsigned int - max_psk_len)) -{ - ctx->psk_server_callback = cb; -} -#endif - -void SSL_CTX_set_msg_callback(SSL_CTX *ctx, - void (*cb) (int write_p, int version, - int content_type, const void *buf, - size_t len, SSL *ssl, void *arg)) -{ - SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); -} - -void SSL_set_msg_callback(SSL *ssl, - void (*cb) (int write_p, int version, - int content_type, const void *buf, - size_t len, SSL *ssl, void *arg)) -{ - SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); -} - -/* - * Allocates new EVP_MD_CTX and sets pointer to it into given pointer - * vairable, freeing EVP_MD_CTX previously stored in that variable, if any. - * If EVP_MD pointer is passed, initializes ctx with this md Returns newly - * allocated ctx; - */ - -EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) -{ - ssl_clear_hash_ctx(hash); - *hash = EVP_MD_CTX_create(); - if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { - EVP_MD_CTX_destroy(*hash); - *hash = NULL; - return NULL; - } - return *hash; -} - -void ssl_clear_hash_ctx(EVP_MD_CTX **hash) -{ - - if (*hash) - EVP_MD_CTX_destroy(*hash); - *hash = NULL; -} - -void SSL_set_debug(SSL *s, int debug) -{ - s->debug = debug; -} - -int SSL_cache_hit(SSL *s) -{ - return s->hit; -} - -int SSL_is_server(SSL *s) -{ - return s->server; -} - -#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) -# include "../crypto/bio/bss_file.c" -#endif - -IMPLEMENT_STACK_OF(SSL_CIPHER) -IMPLEMENT_STACK_OF(SSL_COMP) -IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |