1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay (at) cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh (at) cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay (at) cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] 56 */ 57 /* ==================================================================== 58 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 59 * 60 * Redistribution and use in source and binary forms, with or without 61 * modification, are permitted provided that the following conditions 62 * are met: 63 * 64 * 1. Redistributions of source code must retain the above copyright 65 * notice, this list of conditions and the following disclaimer. 66 * 67 * 2. Redistributions in binary form must reproduce the above copyright 68 * notice, this list of conditions and the following disclaimer in 69 * the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3. All advertising materials mentioning features or use of this 73 * software must display the following acknowledgment: 74 * "This product includes software developed by the OpenSSL Project 75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 76 * 77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 78 * endorse or promote products derived from this software without 79 * prior written permission. For written permission, please contact 80 * openssl-core (at) openssl.org. 81 * 82 * 5. Products derived from this software may not be called "OpenSSL" 83 * nor may "OpenSSL" appear in their names without prior written 84 * permission of the OpenSSL Project. 85 * 86 * 6. Redistributions of any form whatsoever must retain the following 87 * acknowledgment: 88 * "This product includes software developed by the OpenSSL Project 89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 90 * 91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 102 * OF THE POSSIBILITY OF SUCH DAMAGE. 103 * ==================================================================== 104 * 105 * This product includes cryptographic software written by Eric Young 106 * (eay (at) cryptsoft.com). This product includes software written by Tim 107 * Hudson (tjh (at) cryptsoft.com). 108 * 109 */ 110 /* ==================================================================== 111 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 112 * 113 * Portions of the attached software ("Contribution") are developed by 114 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. 115 * 116 * The Contribution is licensed pursuant to the OpenSSL open source 117 * license provided above. 118 * 119 * ECC cipher suite support in OpenSSL originally written by 120 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. 121 * 122 */ 123 /* ==================================================================== 124 * Copyright 2005 Nokia. All rights reserved. 125 * 126 * The portions of the attached software ("Contribution") is developed by 127 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 128 * license. 129 * 130 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 131 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 132 * support (see RFC 4279) to OpenSSL. 133 * 134 * No patent licenses or other rights except those expressly stated in 135 * the OpenSSL open source license shall be deemed granted or received 136 * expressly, by implication, estoppel, or otherwise. 137 * 138 * No assurances are provided by Nokia that the Contribution does not 139 * infringe the patent or other intellectual property rights of any third 140 * party or that the license provides you with all the necessary rights 141 * to make use of the Contribution. 142 * 143 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 144 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 145 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 146 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 147 * OTHERWISE. */ 148 149 #include <openssl/ssl.h> 150 151 #include <assert.h> 152 #include <string.h> 153 154 #include <openssl/buf.h> 155 #include <openssl/dh.h> 156 #include <openssl/digest.h> 157 #include <openssl/err.h> 158 #include <openssl/md5.h> 159 #include <openssl/mem.h> 160 #include <openssl/nid.h> 161 162 #include "../crypto/internal.h" 163 #include "internal.h" 164 165 166 int ssl3_new(SSL *ssl) { 167 SSL3_STATE *s3; 168 169 s3 = OPENSSL_malloc(sizeof *s3); 170 if (s3 == NULL) { 171 return 0; 172 } 173 OPENSSL_memset(s3, 0, sizeof *s3); 174 175 s3->hs = ssl_handshake_new(ssl); 176 if (s3->hs == NULL) { 177 OPENSSL_free(s3); 178 return 0; 179 } 180 181 ssl->s3 = s3; 182 183 /* Set the version to the highest supported version. 184 * 185 * TODO(davidben): Move this field into |s3|, have it store the normalized 186 * protocol version, and implement this pre-negotiation quirk in |SSL_version| 187 * at the API boundary rather than in internal state. */ 188 ssl->version = TLS1_2_VERSION; 189 return 1; 190 } 191 192 void ssl3_free(SSL *ssl) { 193 if (ssl == NULL || ssl->s3 == NULL) { 194 return; 195 } 196 197 ssl_read_buffer_clear(ssl); 198 ssl_write_buffer_clear(ssl); 199 200 SSL_SESSION_free(ssl->s3->established_session); 201 ssl_handshake_free(ssl->s3->hs); 202 OPENSSL_free(ssl->s3->next_proto_negotiated); 203 OPENSSL_free(ssl->s3->alpn_selected); 204 SSL_AEAD_CTX_free(ssl->s3->aead_read_ctx); 205 SSL_AEAD_CTX_free(ssl->s3->aead_write_ctx); 206 BUF_MEM_free(ssl->s3->pending_flight); 207 208 OPENSSL_cleanse(ssl->s3, sizeof *ssl->s3); 209 OPENSSL_free(ssl->s3); 210 ssl->s3 = NULL; 211 } 212 213 const struct ssl_cipher_preference_list_st *ssl_get_cipher_preferences( 214 const SSL *ssl) { 215 if (ssl->cipher_list != NULL) { 216 return ssl->cipher_list; 217 } 218 219 return ssl->ctx->cipher_list; 220 } 221
