2016-01-21 12:22:58 +00:00
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/*
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2016-05-17 18:20:24 +00:00
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* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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2016-01-21 12:22:58 +00:00
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*
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2016-05-17 18:20:24 +00:00
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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2016-01-21 12:22:58 +00:00
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*/
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#include <string.h>
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#include <openssl/ssl.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/conf.h>
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2016-02-25 19:55:51 +00:00
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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2016-01-21 12:22:58 +00:00
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#include "e_os.h"
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2016-03-21 15:32:40 +00:00
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#ifndef OPENSSL_NO_SOCK
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2016-01-21 12:22:58 +00:00
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/* Just a ClientHello without a cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_nocookie[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x3A, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x2E, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x2E, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x00, /* Cookie len */
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0x00, 0x04, /* Ciphersuites len */
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0x00, 0x2f, /* AES128-SHA */
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0x00, 0xff, /* Empty reneg info SCSV */
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0x01, /* Compression methods len */
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0x00, /* Null compression */
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0x00, 0x00 /* Extensions len */
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};
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/* First fragment of a ClientHello without a cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_nocookie_frag[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x30, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x2E, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x24, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x00 /* Cookie len */
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};
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/* First fragment of a ClientHello which is too short */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_nocookie_short[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x2F, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x2E, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x23, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00 /* Session id len */
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};
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/* Second fragment of a ClientHello */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_2ndfrag[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x38, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x2E, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x02, /* Fragment offset */
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0x00, 0x00, 0x2C, /* Fragment length */
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/* Version skipped - sent in first fragment */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x00, /* Cookie len */
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0x00, 0x04, /* Ciphersuites len */
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0x00, 0x2f, /* AES128-SHA */
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0x00, 0xff, /* Empty reneg info SCSV */
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0x01, /* Compression methods len */
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0x00, /* Null compression */
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0x00, 0x00 /* Extensions len */
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};
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/* A ClientHello with a good cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_cookie[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x4E, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x42, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x42, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x14, /* Cookie len */
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0x00, 0x01, 0x02, 0x03, 0x04, 005, 0x06, 007, 0x08, 0x09, 0x0A, 0x0B, 0x0C,
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, /* Cookie */
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0x00, 0x04, /* Ciphersuites len */
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0x00, 0x2f, /* AES128-SHA */
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0x00, 0xff, /* Empty reneg info SCSV */
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0x01, /* Compression methods len */
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0x00, /* Null compression */
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0x00, 0x00 /* Extensions len */
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};
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/* A fragmented ClientHello with a good cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_cookie_frag[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x44, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x42, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x38, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x14, /* Cookie len */
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0x00, 0x01, 0x02, 0x03, 0x04, 005, 0x06, 007, 0x08, 0x09, 0x0A, 0x0B, 0x0C,
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13 /* Cookie */
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};
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/* A ClientHello with a bad cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_badcookie[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x4E, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x42, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x42, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x14, /* Cookie len */
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0x01, 0x01, 0x02, 0x03, 0x04, 005, 0x06, 007, 0x08, 0x09, 0x0A, 0x0B, 0x0C,
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, /* Cookie */
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0x00, 0x04, /* Ciphersuites len */
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0x00, 0x2f, /* AES128-SHA */
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0x00, 0xff, /* Empty reneg info SCSV */
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0x01, /* Compression methods len */
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0x00, /* Null compression */
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0x00, 0x00 /* Extensions len */
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};
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/* A fragmented ClientHello with the fragment boundary mid cookie */
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2016-02-06 02:25:05 +00:00
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static const unsigned char clienthello_cookie_short[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x43, /* Record Length */
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0x01, /* ClientHello */
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0x00, 0x00, 0x42, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x37, /* Fragment length */
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0xFE, 0xFD, /* DTLSv1.2 */
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0xCA, 0x18, 0x9F, 0x76, 0xEC, 0x57, 0xCE, 0xE5, 0xB3, 0xAB, 0x79, 0x90,
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0xAD, 0xAC, 0x6E, 0xD1, 0x58, 0x35, 0x03, 0x97, 0x16, 0x10, 0x82, 0x56,
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0xD8, 0x55, 0xFF, 0xE1, 0x8A, 0xA3, 0x2E, 0xF6, /* Random */
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0x00, /* Session id len */
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0x14, /* Cookie len */
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0x00, 0x01, 0x02, 0x03, 0x04, 005, 0x06, 007, 0x08, 0x09, 0x0A, 0x0B, 0x0C,
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12 /* Cookie */
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};
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/* Bad record - too short */
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2016-02-06 02:25:05 +00:00
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static const unsigned char record_short[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* Record sequence number */
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};
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2016-02-06 02:25:05 +00:00
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static const unsigned char verify[] = {
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2016-01-21 12:22:58 +00:00
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0x16, /* Handshake */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x00, 0x00, /* Epoch */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* Record sequence number */
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0x00, 0x23, /* Record Length */
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0x03, /* HelloVerifyRequest */
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0x00, 0x00, 0x17, /* Message length */
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0x00, 0x00, /* Message sequence */
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0x00, 0x00, 0x00, /* Fragment offset */
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0x00, 0x00, 0x17, /* Fragment length */
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0xFE, 0xFF, /* DTLSv1.0 */
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0x14, /* Cookie len */
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0x00, 0x01, 0x02, 0x03, 0x04, 005, 0x06, 007, 0x08, 0x09, 0x0A, 0x0B, 0x0C,
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0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13 /* Cookie */
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};
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2016-02-06 02:25:05 +00:00
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static struct {
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2016-01-21 12:22:58 +00:00
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const unsigned char *in;
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unsigned int inlen;
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/*
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* GOOD == positive return value from DTLSv1_listen, no output yet
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* VERIFY == 0 return value, HelloVerifyRequest sent
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* DROP == 0 return value, no output
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*/
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enum {GOOD, VERIFY, DROP} outtype;
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} testpackets[9] = {
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{
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clienthello_nocookie,
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sizeof(clienthello_nocookie),
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VERIFY
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},
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{
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clienthello_nocookie_frag,
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sizeof(clienthello_nocookie_frag),
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VERIFY
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},
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{
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clienthello_nocookie_short,
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sizeof(clienthello_nocookie_short),
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DROP
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},
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{
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clienthello_2ndfrag,
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sizeof(clienthello_2ndfrag),
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|
DROP
|
|
|
|
},
|
|
|
|
{
|
|
|
|
clienthello_cookie,
|
|
|
|
sizeof(clienthello_cookie),
|
|
|
|
GOOD
|
|
|
|
},
|
|
|
|
{
|
|
|
|
clienthello_cookie_frag,
|
|
|
|
sizeof(clienthello_cookie_frag),
|
|
|
|
GOOD
|
|
|
|
},
|
|
|
|
{
|
|
|
|
clienthello_badcookie,
|
|
|
|
sizeof(clienthello_badcookie),
|
|
|
|
VERIFY
|
|
|
|
},
|
|
|
|
{
|
|
|
|
clienthello_cookie_short,
|
|
|
|
sizeof(clienthello_cookie_short),
|
|
|
|
DROP
|
|
|
|
},
|
|
|
|
{
|
|
|
|
record_short,
|
|
|
|
sizeof(record_short),
|
|
|
|
DROP
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2016-03-21 15:32:40 +00:00
|
|
|
# define COOKIE_LEN 20
|
2016-01-21 12:22:58 +00:00
|
|
|
|
|
|
|
static int cookie_gen(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < COOKIE_LEN; i++, cookie++) {
|
|
|
|
*cookie = i;
|
|
|
|
}
|
|
|
|
*cookie_len = COOKIE_LEN;
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cookie_verify(SSL *ssl, const unsigned char *cookie,
|
|
|
|
unsigned int cookie_len)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
if (cookie_len != COOKIE_LEN)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
for (i = 0; i < COOKIE_LEN; i++, cookie++) {
|
|
|
|
if (*cookie != i)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
2016-03-21 15:32:40 +00:00
|
|
|
#endif
|
2016-01-21 12:22:58 +00:00
|
|
|
|
|
|
|
int main(void)
|
|
|
|
{
|
2016-03-21 15:32:40 +00:00
|
|
|
#ifndef OPENSSL_NO_SOCK
|
2016-01-21 12:22:58 +00:00
|
|
|
SSL_CTX *ctx = NULL;
|
|
|
|
SSL *ssl = NULL;
|
|
|
|
BIO *outbio = NULL;
|
|
|
|
BIO *inbio = NULL;
|
|
|
|
BIO_ADDR *peer = BIO_ADDR_new();
|
|
|
|
char *data;
|
|
|
|
long datalen;
|
|
|
|
int ret, success = 0;
|
2016-02-12 22:24:39 +00:00
|
|
|
long i;
|
2016-01-21 12:22:58 +00:00
|
|
|
|
|
|
|
ctx = SSL_CTX_new(DTLS_server_method());
|
|
|
|
if (ctx == NULL || peer == NULL)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
SSL_CTX_set_cookie_generate_cb(ctx, cookie_gen);
|
|
|
|
SSL_CTX_set_cookie_verify_cb(ctx, cookie_verify);
|
|
|
|
|
|
|
|
/* Create an SSL object for the connection */
|
|
|
|
ssl = SSL_new(ctx);
|
|
|
|
if (ssl == NULL)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
outbio = BIO_new(BIO_s_mem());
|
|
|
|
if (outbio == NULL)
|
|
|
|
goto err;
|
2016-07-21 11:17:29 +00:00
|
|
|
SSL_set0_wbio(ssl, outbio);
|
2016-01-21 12:22:58 +00:00
|
|
|
|
|
|
|
success = 1;
|
2016-02-12 22:24:39 +00:00
|
|
|
for (i = 0; i < (long)OSSL_NELEM(testpackets) && success; i++) {
|
2016-01-21 12:22:58 +00:00
|
|
|
inbio = BIO_new_mem_buf((char *)testpackets[i].in,
|
|
|
|
testpackets[i].inlen);
|
|
|
|
if (inbio == NULL) {
|
|
|
|
success = 0;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
/* Set Non-blocking IO behaviour */
|
|
|
|
BIO_set_mem_eof_return(inbio, -1);
|
|
|
|
|
2016-07-21 11:17:29 +00:00
|
|
|
SSL_set0_rbio(ssl, inbio);
|
2016-01-21 12:22:58 +00:00
|
|
|
|
|
|
|
/* Process the incoming packet */
|
|
|
|
ret = DTLSv1_listen(ssl, peer);
|
|
|
|
if (ret < 0) {
|
|
|
|
success = 0;
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
datalen = BIO_get_mem_data(outbio, &data);
|
|
|
|
|
|
|
|
if (testpackets[i].outtype == VERIFY) {
|
|
|
|
if (ret == 0) {
|
|
|
|
if (datalen != sizeof(verify)
|
|
|
|
|| (memcmp(data, verify, sizeof(verify)) != 0)) {
|
|
|
|
printf("Test %ld failure: incorrect HelloVerifyRequest\n", i);
|
|
|
|
success = 0;
|
|
|
|
} else {
|
|
|
|
printf("Test %ld success\n", i);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
printf ("Test %ld failure: should not have succeeded\n", i);
|
|
|
|
success = 0;
|
|
|
|
}
|
|
|
|
} else if (datalen == 0) {
|
|
|
|
if ((ret == 0 && testpackets[i].outtype == DROP)
|
|
|
|
|| (ret == 1 && testpackets[i].outtype == GOOD)) {
|
|
|
|
printf("Test %ld success\n", i);
|
|
|
|
} else {
|
|
|
|
printf("Test %ld failure: wrong return value\n", i);
|
|
|
|
success = 0;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
printf("Test %ld failure: Unexpected data output\n", i);
|
|
|
|
success = 0;
|
|
|
|
}
|
|
|
|
(void)BIO_reset(outbio);
|
|
|
|
inbio = NULL;
|
|
|
|
/* Frees up inbio */
|
2016-07-21 11:17:29 +00:00
|
|
|
SSL_set0_rbio(ssl, NULL);
|
2016-01-21 12:22:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
err:
|
|
|
|
if (!success)
|
|
|
|
ERR_print_errors_fp(stderr);
|
|
|
|
/* Also frees up outbio */
|
|
|
|
SSL_free(ssl);
|
|
|
|
SSL_CTX_free(ctx);
|
|
|
|
BIO_free(inbio);
|
2016-02-06 19:31:15 +00:00
|
|
|
OPENSSL_free(peer);
|
2016-03-21 15:32:40 +00:00
|
|
|
# ifndef OPENSSL_NO_CRYPTO_MDEBUG
|
2016-01-21 12:22:58 +00:00
|
|
|
CRYPTO_mem_leaks_fp(stderr);
|
2016-03-21 15:32:40 +00:00
|
|
|
# endif
|
2016-01-21 12:22:58 +00:00
|
|
|
return success ? 0 : 1;
|
2016-03-21 15:32:40 +00:00
|
|
|
#else
|
|
|
|
printf("DTLSv1_listen() is not supported by this build - skipping\n");
|
|
|
|
return 0;
|
|
|
|
#endif
|
2016-01-21 12:22:58 +00:00
|
|
|
}
|