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069c3c0908
Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org>
468 lines
16 KiB
C
468 lines
16 KiB
C
/*
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* Written by Matt Caswell for the OpenSSL project.
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*/
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/* ====================================================================
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* Copyright (c) 2016 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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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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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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#include "e_os.h"
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/* Just a ClientHello without a cookie */
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static const unsigned char clienthello_nocookie[] = {
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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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static const unsigned char clienthello_nocookie_frag[] = {
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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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static const unsigned char clienthello_nocookie_short[] = {
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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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static const unsigned char clienthello_2ndfrag[] = {
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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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static const unsigned char clienthello_cookie[] = {
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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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static const unsigned char clienthello_cookie_frag[] = {
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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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static const unsigned char clienthello_badcookie[] = {
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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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static const unsigned char clienthello_cookie_short[] = {
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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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static const unsigned char record_short[] = {
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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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static const unsigned char verify[] = {
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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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static struct {
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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
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},
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{
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clienthello_cookie,
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sizeof(clienthello_cookie),
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GOOD
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},
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{
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clienthello_cookie_frag,
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sizeof(clienthello_cookie_frag),
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GOOD
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},
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{
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clienthello_badcookie,
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sizeof(clienthello_badcookie),
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VERIFY
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},
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{
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clienthello_cookie_short,
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sizeof(clienthello_cookie_short),
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DROP
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},
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{
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record_short,
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sizeof(record_short),
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DROP
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}
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};
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#define COOKIE_LEN 20
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static int cookie_gen(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
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{
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unsigned int i;
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for (i = 0; i < COOKIE_LEN; i++, cookie++) {
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*cookie = i;
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}
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*cookie_len = COOKIE_LEN;
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return 1;
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}
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static int cookie_verify(SSL *ssl, const unsigned char *cookie,
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unsigned int cookie_len)
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{
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unsigned int i;
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if (cookie_len != COOKIE_LEN)
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return 0;
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for (i = 0; i < COOKIE_LEN; i++, cookie++) {
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if (*cookie != i)
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return 0;
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}
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return 1;
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}
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int main(void)
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{
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SSL_CTX *ctx = NULL;
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SSL *ssl = NULL;
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BIO *outbio = NULL;
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BIO *inbio = NULL;
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BIO_ADDR *peer = BIO_ADDR_new();
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char *data;
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long datalen;
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int ret, success = 0;
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long i;
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ctx = SSL_CTX_new(DTLS_server_method());
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if (ctx == NULL || peer == NULL)
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goto err;
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SSL_CTX_set_cookie_generate_cb(ctx, cookie_gen);
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SSL_CTX_set_cookie_verify_cb(ctx, cookie_verify);
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/* Create an SSL object for the connection */
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ssl = SSL_new(ctx);
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if (ssl == NULL)
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goto err;
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outbio = BIO_new(BIO_s_mem());
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if (outbio == NULL)
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goto err;
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SSL_set_wbio(ssl, outbio);
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success = 1;
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for (i = 0; i < (long)OSSL_NELEM(testpackets) && success; i++) {
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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);
|
|
|
|
SSL_set_rbio(ssl, inbio);
|
|
|
|
/* 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 */
|
|
SSL_set_rbio(ssl, NULL);
|
|
}
|
|
|
|
err:
|
|
if (!success)
|
|
ERR_print_errors_fp(stderr);
|
|
/* Also frees up outbio */
|
|
SSL_free(ssl);
|
|
SSL_CTX_free(ctx);
|
|
BIO_free(inbio);
|
|
OPENSSL_free(peer);
|
|
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
|
|
CRYPTO_mem_leaks_fp(stderr);
|
|
#endif
|
|
return success ? 0 : 1;
|
|
}
|
|
|