From 86c49b31af735796dfde37aa29473a30d36367db Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Sat, 23 Jul 2016 19:31:36 +0000 Subject: This commit was manufactured by cvs2git to create tag 'OPENBSD_6_0_BASE'. --- src/lib/libssl/ssl_lib.c | 3062 ---------------------------------------------- 1 file changed, 3062 deletions(-) delete mode 100644 src/lib/libssl/ssl_lib.c (limited to 'src/lib/libssl/ssl_lib.c') diff --git a/src/lib/libssl/ssl_lib.c b/src/lib/libssl/ssl_lib.c deleted file mode 100644 index 5b9b952e72..0000000000 --- a/src/lib/libssl/ssl_lib.c +++ /dev/null @@ -1,3062 +0,0 @@ -/* $OpenBSD: ssl_lib.c,v 1.116 2015/10/25 15:52:49 doug Exp $ */ -/* 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. - */ - -#include - -#include "ssl_locl.h" - -#include -#include -#include -#include -#include -#include - -#ifndef OPENSSL_NO_ENGINE -#include -#endif - -#include "bytestring.h" - -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. - */ - .enc = (int (*)(SSL *, int))ssl_undefined_function, - .mac = (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, - .setup_key_block = ssl_undefined_function, - .generate_master_secret = (int (*)(SSL *, unsigned char *, - unsigned char *, int))ssl_undefined_function, - .change_cipher_state = (int (*)(SSL*, int))ssl_undefined_function, - .final_finish_mac = (int (*)(SSL *, const char*, int, - unsigned char *))ssl_undefined_function, - .finish_mac_length = 0, - .cert_verify_mac = (int (*)(SSL *, int, - unsigned char *))ssl_undefined_function, - .client_finished_label = NULL, - .client_finished_label_len = 0, - .server_finished_label = NULL, - .server_finished_label_len = 0, - .alert_value = (int (*)(int))ssl_undefined_function, - .export_keying_material = (int (*)(SSL *, unsigned char *, size_t, - const char *, size_t, const unsigned char *, size_t, - int use_context))ssl_undefined_function, - .enc_flags = 0, -}; - -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 (s->renegotiate) { - SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); - return (0); - } - - 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; - - 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; - - /* - * 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 - 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), SSL_DEFAULT_CIPHER_LIST); - 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 = calloc(1, sizeof(SSL)); - if (s == NULL) - goto err; - - - s->options = ctx->options; - s->mode = ctx->mode; - s->max_cert_list = ctx->max_cert_list; - - 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; - 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); - 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; - 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; - s->next_proto_negotiated = NULL; - - if (s->ctx->alpn_client_proto_list != NULL) { - s->alpn_client_proto_list = - 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; - } - - s->verify_result = X509_V_OK; - - s->method = ctx->method; - - if (!s->method->ssl_new(s)) - goto err; - - s->references = 1; - 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); - - return (s); - -err: - 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); - - 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)); -} - -void -SSL_free(SSL *s) -{ - int i; - - if (s == NULL) - return; - - i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); - if (i > 0) - return; - - 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 != s->wbio) - BIO_free_all(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 */ - - free(s->tlsext_hostname); - SSL_CTX_free(s->initial_ctx); - free(s->tlsext_ecpointformatlist); - free(s->tlsext_ellipticcurvelist); - 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); - free(s->tlsext_ocsp_resp); - - 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); - - SSL_CTX_free(s->ctx); - - - free(s->next_proto_negotiated); - free(s->alpn_client_proto_list); - -#ifndef OPENSSL_NO_SRTP - if (s->srtp_profiles) - sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); -#endif - - 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 != rbio && s->rbio != s->wbio) - BIO_free_all(s->rbio); - if (s->wbio != 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); -} - -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); -} - - -/* 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 == NULL) - SSL_set_accept_state(s); /* Not properly initialized yet */ - - return (s->method->ssl_accept(s)); -} - -int -SSL_connect(SSL *s) -{ - if (s->handshake_func == NULL) - SSL_set_connect_state(s); /* Not properly initialized yet */ - - 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 == NULL) { - 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 == NULL) { - 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 == NULL) { - 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 == NULL) { - SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); - return (-1); - } - - if ((s != NULL) && !SSL_in_init(s)) - return (s->method->ssl_shutdown(s)); - else - 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_MTU: -#ifndef OPENSSL_NO_DTLS1 - if (larg < (long)dtls1_min_mtu()) - return (0); -#endif - if (SSL_IS_DTLS(s)) { - s->d1->mtu = larg; - return (larg); - } - return (0); - 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); - 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; - - 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); - 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); - /* - * 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); - /* 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 *end; - STACK_OF(SSL_CIPHER) *sk; - SSL_CIPHER *c; - size_t curlen = 0; - int i; - - if (s->session == NULL || s->session->ciphers == NULL || len < 2) - return (NULL); - - sk = s->session->ciphers; - if (sk_SSL_CIPHER_num(sk) == 0) - return (NULL); - - buf[0] = '\0'; - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - c = sk_SSL_CIPHER_value(sk, i); - end = buf + curlen; - if (strlcat(buf, c->name, len) >= len || - (curlen = strlcat(buf, ":", len)) >= len) { - /* remove truncated cipher from list */ - *end = '\0'; - break; - } - } - /* remove trailing colon */ - if ((end = strrchr(buf, ':')) != NULL) - *end = '\0'; - return (buf); -} - -int -ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p) -{ - int i; - SSL_CIPHER *c; - unsigned char *q; - - if (sk == NULL) - return (0); - q = p; - - for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { - c = sk_SSL_CIPHER_value(sk, i); - - /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */ - if ((c->algorithm_ssl & SSL_TLSV1_2) && - (TLS1_get_client_version(s) < TLS1_2_VERSION)) - continue; - - s2n(ssl3_cipher_get_value(c), p); - } - - /* - * If p == q, no ciphers and caller indicates an error. Otherwise - * add SCSV if not renegotiating. - */ - if (p != q && !s->renegotiate) - s2n(SSL3_CK_SCSV & SSL3_CK_VALUE_MASK, p); - - return (p - q); -} - -STACK_OF(SSL_CIPHER) * -ssl_bytes_to_cipher_list(SSL *s, const unsigned char *p, int num) -{ - CBS cbs; - const SSL_CIPHER *c; - STACK_OF(SSL_CIPHER) *sk = NULL; - unsigned long cipher_id; - uint16_t cipher_value, max_version; - - if (s->s3) - s->s3->send_connection_binding = 0; - - /* - * RFC 5246 section 7.4.1.2 defines the interval as [2,2^16-2]. - */ - if (num < 2 || num > 0x10000 - 2) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); - return (NULL); - } - - if ((sk = sk_SSL_CIPHER_new_null()) == NULL) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); - goto err; - } - - CBS_init(&cbs, p, num); - while (CBS_len(&cbs) > 0) { - if (!CBS_get_u16(&cbs, &cipher_value)) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); - goto err; - } - - cipher_id = SSL3_CK_ID | cipher_value; - - if (s->s3 != NULL && cipher_id == SSL3_CK_SCSV) { - /* - * TLS_EMPTY_RENEGOTIATION_INFO_SCSV is 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; - continue; - } - - if (cipher_id == SSL3_CK_FALLBACK_SCSV) { - /* - * TLS_FALLBACK_SCSV indicates that the client - * previously tried a higher protocol version. - * Fail if the current version is an unexpected - * downgrade. - */ - max_version = ssl_max_server_version(s); - if (max_version == 0 || s->version < max_version) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - SSL_R_INAPPROPRIATE_FALLBACK); - if (s->s3 != NULL) - ssl3_send_alert(s, SSL3_AL_FATAL, - SSL_AD_INAPPROPRIATE_FALLBACK); - goto err; - } - continue; - } - - if ((c = ssl3_get_cipher_by_value(cipher_value)) != NULL) { - if (!sk_SSL_CIPHER_push(sk, c)) { - SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, - ERR_R_MALLOC_FAILURE); - goto err; - } - } - } - - return (sk); - -err: - sk_SSL_CIPHER_free(sk); - - return (NULL); -} - - -/* - * 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); -} - -/* - * 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; -} - -/* - * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified - * protocols, which 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 int protos_len) -{ - free(ctx->alpn_client_proto_list); - if ((ctx->alpn_client_proto_list = malloc(protos_len)) == NULL) - 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 to the specified - * protocols, which 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 int protos_len) -{ - free(ssl->alpn_client_proto_list); - if ((ssl->alpn_client_proto_list = malloc(protos_len)) == NULL) - 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 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). 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; - *len = 0; - - if (ssl->s3 != NULL) { - *data = ssl->s3->alpn_selected; - *len = ssl->s3->alpn_selected_len; - } -} - -int -SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, - const char *label, size_t llen, const unsigned char *p, size_t plen, - int use_context) -{ - return (s->method->ssl3_enc->export_keying_material(s, out, olen, - label, llen, p, plen, use_context)); -} - -static unsigned long -ssl_session_hash(const SSL_SESSION *a) -{ - unsigned long l; - - l = (unsigned long) - ((unsigned int) a->session_id[0] )| - ((unsigned int) a->session_id[1]<< 8L)| - ((unsigned long)a->session_id[2]<<16L)| - ((unsigned long)a->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); - if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) - return (1); - return (0); -} - -/* - * 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); - } - - 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 = calloc(1, sizeof(SSL_CTX)); - if (ret == NULL) - goto err; - - 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->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; - 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, SSL_DEFAULT_CIPHER_LIST); - 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->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; - - ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; - - ret->tlsext_servername_callback = 0; - ret->tlsext_servername_arg = NULL; - - /* Setup RFC4507 ticket keys */ - arc4random_buf(ret->tlsext_tick_key_name, 16); - arc4random_buf(ret->tlsext_tick_hmac_key, 16); - arc4random_buf(ret->tlsext_tick_aes_key, 16); - - ret->tlsext_status_cb = 0; - ret->tlsext_status_arg = NULL; - - ret->next_protos_advertised_cb = 0; - ret->next_proto_select_cb = 0; -#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; - - return (ret); -err: - SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); -err2: - SSL_CTX_free(ret); - return (NULL); -} - -void -SSL_CTX_free(SSL_CTX *a) -{ - int i; - - if (a == NULL) - return; - - i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); - if (i > 0) - return; - - 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); - -#ifndef OPENSSL_NO_SRTP - if (a->srtp_profiles) - sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); -#endif - -#ifndef OPENSSL_NO_ENGINE - if (a->client_cert_engine) - ENGINE_finish(a->client_cert_engine); -#endif - - free(a->alpn_client_proto_list); - - 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_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) -{ - CERT_PKEY *cpk; - int rsa_enc, rsa_sign, dh_tmp, dsa_sign; - unsigned long mask_k, mask_a; - int have_ecc_cert, ecdh_ok, ecdsa_ok; - int have_ecdh_tmp; - X509 *x = NULL; - EVP_PKEY *ecc_pkey = NULL; - int signature_nid = 0, pk_nid = 0, md_nid = 0; - - if (c == NULL) - return; - - dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || - c->dh_tmp_auto != 0); - - have_ecdh_tmp = (c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL || - c->ecdh_tmp_auto != 0); - cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); - rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); - cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); - rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); - cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); - dsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); -/* FIX THIS EAY EAY EAY */ - cpk = &(c->pkeys[SSL_PKEY_ECC]); - have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); - mask_k = 0; - mask_a = 0; - - cpk = &(c->pkeys[SSL_PKEY_GOST01]); - if (cpk->x509 != NULL && cpk->privatekey !=NULL) { - mask_k |= SSL_kGOST; - mask_a |= SSL_aGOST01; - } - - if (rsa_enc) - mask_k|=SSL_kRSA; - - if (dh_tmp) - mask_k|=SSL_kDHE; - - if (rsa_enc || rsa_sign) - mask_a|=SSL_aRSA; - - if (dsa_sign) - mask_a|=SSL_aDSS; - - mask_a|=SSL_aNULL; - - /* - * An ECC certificate may be usable for ECDH and/or - * ECDSA cipher suites depending on the key usage extension. - */ - if (have_ecc_cert) { - /* This call populates extension flags (ex_flags) */ - x = (c->pkeys[SSL_PKEY_ECC]).x509; - X509_check_purpose(x, -1, 0); - ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? - (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; - ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? - (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; - ecc_pkey = X509_get_pubkey(x); - 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); - } - if (ecdh_ok) { - if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { - mask_k|=SSL_kECDHr; - mask_a|=SSL_aECDH; - } - if (pk_nid == NID_X9_62_id_ecPublicKey) { - mask_k|=SSL_kECDHe; - mask_a|=SSL_aECDH; - } - } - if (ecdsa_ok) - mask_a|=SSL_aECDSA; - } - - if (have_ecdh_tmp) { - mask_k|=SSL_kECDHE; - } - - - c->mask_k = mask_k; - c->mask_a = mask_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))) - - -int -ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) -{ - unsigned long alg_k, alg_a; - 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; - - /* 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 */ -} - - -/* THIS NEEDS CLEANING UP */ -CERT_PKEY * -ssl_get_server_send_pkey(const SSL *s) -{ - unsigned long alg_k, alg_a; - CERT *c; - int i; - - c = s->cert; - ssl_set_cert_masks(c, s->s3->tmp.new_cipher); - - alg_k = s->s3->tmp.new_cipher->algorithm_mkey; - alg_a = s->s3->tmp.new_cipher->algorithm_auth; - - if (alg_k & (SSL_kECDHr|SSL_kECDHe)) { - /* - * We don't need to look at SSL_kECDHE - * since no certificate is needed for - * anon ECDH and for authenticated - * ECDHE, the check for the auth - * algorithm will set i correctly - * NOTE: For ECDH-RSA, we need an ECC - * not an RSA cert but for EECDH-RSA - * we need an RSA cert. Placing the - * checks for SSL_kECDH before RSA - * checks ensures the correct cert is chosen. - */ - i = SSL_PKEY_ECC; - } else if (alg_a & SSL_aECDSA) { - i = SSL_PKEY_ECC; - } else if (alg_a & SSL_aDSS) { - i = SSL_PKEY_DSA_SIGN; - } else if (alg_a & SSL_aRSA) { - if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) - i = SSL_PKEY_RSA_SIGN; - else - i = SSL_PKEY_RSA_ENC; - } else if (alg_a & SSL_aGOST01) { - i = SSL_PKEY_GOST01; - } else { /* if (alg_a & SSL_aNULL) */ - SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY, ERR_R_INTERNAL_ERROR); - return (NULL); - } - - return (c->pkeys + i); -} - -X509 * -ssl_get_server_send_cert(const SSL *s) -{ - CERT_PKEY *cpk; - - cpk = ssl_get_server_send_pkey(s); - if (!cpk) - return (NULL); - return (cpk->x509); -} - -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; - - 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); -} - -DH * -ssl_get_auto_dh(SSL *s) -{ - CERT_PKEY *cpk; - int keylen; - DH *dhp; - - if (s->cert->dh_tmp_auto == 2) { - keylen = 1024; - } else if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) { - keylen = 1024; - if (s->s3->tmp.new_cipher->strength_bits == 256) - keylen = 3072; - } else { - if ((cpk = ssl_get_server_send_pkey(s)) == NULL) - return (NULL); - if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) - return (NULL); - keylen = EVP_PKEY_bits(cpk->privatekey); - } - - if ((dhp = DH_new()) == NULL) - return (NULL); - - dhp->g = BN_new(); - if (dhp->g != NULL) - BN_set_word(dhp->g, 2); - - if (keylen >= 8192) - dhp->p = get_rfc3526_prime_8192(NULL); - else if (keylen >= 4096) - dhp->p = get_rfc3526_prime_4096(NULL); - else if (keylen >= 3072) - dhp->p = get_rfc3526_prime_3072(NULL); - else if (keylen >= 2048) - dhp->p = get_rfc3526_prime_2048(NULL); - else if (keylen >= 1536) - dhp->p = get_rfc3526_prime_1536(NULL); - else - dhp->p = get_rfc2409_prime_1024(NULL); - - if (dhp->p == NULL || dhp->g == NULL) { - DH_free(dhp); - return (NULL); - } - return (dhp); -} - -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, time(NULL)); - } - } -} - -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->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); -} - -const char * -ssl_version_string(int ver) -{ - switch (ver) { - case DTLS1_VERSION: - return (SSL_TXT_DTLS1); - case TLS1_VERSION: - return (SSL_TXT_TLSV1); - case TLS1_1_VERSION: - return (SSL_TXT_TLSV1_1); - case TLS1_2_VERSION: - return (SSL_TXT_TLSV1_2); - default: - return ("unknown"); - } -} - -const char * -SSL_get_version(const SSL *s) -{ - return ssl_version_string(s->version); -} - -uint16_t -ssl_max_server_version(SSL *s) -{ - uint16_t max_version; - - /* - * The SSL method will be changed during version negotiation, as such - * we want to use the SSL method from the context. - */ - max_version = s->ctx->method->version; - - if (SSL_IS_DTLS(s)) - return (DTLS1_VERSION); - - if ((s->options & SSL_OP_NO_TLSv1_2) == 0 && - max_version >= TLS1_2_VERSION) - return (TLS1_2_VERSION); - if ((s->options & SSL_OP_NO_TLSv1_1) == 0 && - max_version >= TLS1_1_VERSION) - return (TLS1_1_VERSION); - if ((s->options & SSL_OP_NO_TLSv1) == 0 && - max_version >= TLS1_VERSION) - return (TLS1_VERSION); - - return (0); -} - -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; - /* SSL_dup does not really work at any state, though */ - ret->state=s->state; - ret->rstate = s->rstate; - - /* - * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, - * ret->init_off - */ - ret->init_num = 0; - - 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) -{ - EVP_CIPHER_CTX_free(s->enc_read_ctx); - s->enc_read_ctx = NULL; - EVP_CIPHER_CTX_free(s->enc_write_ctx); - s->enc_write_ctx = NULL; - - if (s->aead_read_ctx != NULL) { - EVP_AEAD_CTX_cleanup(&s->aead_read_ctx->ctx); - free(s->aead_read_ctx); - s->aead_read_ctx = NULL; - } - if (s->aead_write_ctx != NULL) { - EVP_AEAD_CTX_cleanup(&s->aead_write_ctx->ctx); - free(s->aead_write_ctx); - s->aead_write_ctx = NULL; - } - -} - -/* Fix this function so that it takes an optional type parameter */ -X509 * -SSL_get_certificate(const SSL *s) -{ - if (s->cert != NULL) - return (s->cert->key->x509); - else - return (NULL); -} - -/* Fix this function so that it takes an optional type parameter */ -EVP_PKEY * -SSL_get_privatekey(SSL *s) -{ - if (s->cert != NULL) - return (s->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); -} -const void * -SSL_get_current_compression(SSL *s) -{ - return (NULL); -} - -const void * -SSL_get_current_expansion(SSL *s) -{ - return (NULL); -} - -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 == NULL) - return; - - if (s->bbio == NULL) - return; - - if (s->bbio == s->wbio) { - /* remove buffering */ - s->wbio = BIO_pop(s->wbio); - } - 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) -{ - if (ssl->ctx == ctx) - return (ssl->ctx); - if (ctx == NULL) - ctx = ssl->initial_ctx; - if (ssl->cert != NULL) - ssl_cert_free(ssl->cert); - ssl->cert = ssl_cert_dup(ctx->cert); - CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); - SSL_CTX_free(ssl->ctx); /* decrement reference count */ - ssl->ctx = ctx; - return (ssl->ctx); -} - -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)); -} - -int -SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) -{ - return (X509_STORE_load_mem(ctx->cert_store, buf, len)); -} - -void -SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) -{ - ssl->info_callback = cb; -} - -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); -} - -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); -} - -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); -} - -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); -} - - -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); -} - -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); -} - -IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); -- cgit v1.2.3-55-g6feb