1 /* ssl/d1_meth.h */ 2 /* 3 * DTLS implementation written by Nagendra Modadugu 4 * (nagendra (at) cs.stanford.edu) for the OpenSSL project 2005. 5 */ 6 /* ==================================================================== 7 * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * openssl-core (at) OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay (at) cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh (at) cryptsoft.com). */ 57 58 #include "internal.h" 59 60 61 static const SSL_PROTOCOL_METHOD DTLS_protocol_method = { 62 1 /* is_dtls */, 63 dtls1_new, 64 dtls1_free, 65 dtls1_accept, 66 dtls1_connect, 67 dtls1_get_message, 68 dtls1_read_app_data, 69 dtls1_read_close_notify, 70 dtls1_write_app_data, 71 dtls1_dispatch_alert, 72 ssl3_ctrl, 73 ssl3_ctx_ctrl, 74 dtls1_supports_cipher, 75 DTLS1_HM_HEADER_LENGTH, 76 dtls1_set_handshake_header, 77 dtls1_handshake_write, 78 }; 79 80 const SSL_METHOD *DTLS_method(void) { 81 static const SSL_METHOD method = { 82 0, 83 &DTLS_protocol_method, 84 }; 85 return &method; 86 } 87 88 /* Legacy version-locked methods. */ 89 90 const SSL_METHOD *DTLSv1_2_method(void) { 91 static const SSL_METHOD method = { 92 DTLS1_2_VERSION, 93 &DTLS_protocol_method, 94 }; 95 return &method; 96 } 97 98 const SSL_METHOD *DTLSv1_method(void) { 99 static const SSL_METHOD method = { 100 DTLS1_VERSION, 101 &DTLS_protocol_method, 102 }; 103 return &method; 104 } 105 106 /* Legacy side-specific methods. */ 107 108 const SSL_METHOD *DTLSv1_2_server_method(void) { 109 return DTLSv1_2_method(); 110 } 111 112 const SSL_METHOD *DTLSv1_server_method(void) { 113 return DTLSv1_method(); 114 } 115 116 const SSL_METHOD *DTLSv1_2_client_method(void) { 117 return DTLSv1_2_method(); 118 } 119 120 const SSL_METHOD *DTLSv1_client_method(void) { 121 return DTLSv1_method(); 122 } 123 124 const SSL_METHOD *DTLS_server_method(void) { 125 return DTLS_method(); 126 } 127 128 const SSL_METHOD *DTLS_client_method(void) { 129 return DTLS_method(); 130 } 131