Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1 | /* |
| 2 | * DTLS implementation written by Nagendra Modadugu |
| 3 | * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. |
| 4 | */ |
| 5 | /* ==================================================================== |
| 6 | * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in |
| 17 | * the documentation and/or other materials provided with the |
| 18 | * distribution. |
| 19 | * |
| 20 | * 3. All advertising materials mentioning features or use of this |
| 21 | * software must display the following acknowledgment: |
| 22 | * "This product includes software developed by the OpenSSL Project |
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 24 | * |
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 26 | * endorse or promote products derived from this software without |
| 27 | * prior written permission. For written permission, please contact |
| 28 | * openssl-core@OpenSSL.org. |
| 29 | * |
| 30 | * 5. Products derived from this software may not be called "OpenSSL" |
| 31 | * nor may "OpenSSL" appear in their names without prior written |
| 32 | * permission of the OpenSSL Project. |
| 33 | * |
| 34 | * 6. Redistributions of any form whatsoever must retain the following |
| 35 | * acknowledgment: |
| 36 | * "This product includes software developed by the OpenSSL Project |
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 38 | * |
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 51 | * ==================================================================== |
| 52 | * |
| 53 | * This product includes cryptographic software written by Eric Young |
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 55 | * Hudson (tjh@cryptsoft.com). */ |
| 56 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 57 | #include <openssl/ssl.h> |
| 58 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 59 | #include "internal.h" |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 60 | |
| 61 | |
| 62 | static const SSL_PROTOCOL_METHOD DTLS_protocol_method = { |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 63 | 1 /* is_dtls */, |
| 64 | dtls1_new, |
| 65 | dtls1_free, |
| 66 | dtls1_accept, |
| 67 | dtls1_connect, |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 68 | dtls1_get_message, |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 69 | dtls1_read_app_data, |
Adam Langley | 4139edb | 2016-01-13 15:00:54 -0800 | [diff] [blame^] | 70 | dtls1_read_change_cipher_spec, |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 71 | dtls1_read_close_notify, |
| 72 | dtls1_write_app_data, |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 73 | dtls1_dispatch_alert, |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 74 | dtls1_supports_cipher, |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 75 | DTLS1_HM_HEADER_LENGTH, |
| 76 | dtls1_set_handshake_header, |
| 77 | dtls1_handshake_write, |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 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 | } |