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Diffstat (limited to 'src/challenge.h')
| -rw-r--r-- | src/challenge.h | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/src/challenge.h b/src/challenge.h deleted file mode 100644 index 203e420..0000000 --- a/src/challenge.h +++ /dev/null @@ -1,95 +0,0 @@ -/* - * challenge.h - * ptunnel is licensed under the BSD license: - * - * Copyright (c) 2004-2011, Daniel Stoedle <daniels@cs.uit.no>, - * Yellow Lemon Software. All rights reserved. - * - * Copyright (c) 2017-2019, Toni Uhlig <matzeton@googlemail.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * - Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * - Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * - Neither the name of the Yellow Lemon Software nor the names of its - * contributors may be used to endorse or promote products derived from this - * software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * Contacting the author: - * You can get in touch with me, Daniel Stødle (that's the Norwegian letter oe, - * in case your text editor didn't realize), here: <daniels@cs.uit.no> - * - * The official ptunnel website is here: - * <http://www.cs.uit.no/~daniels/PingTunnel/> - * - * Note that the source code is best viewed with tabs set to 4 spaces. - */ - -#ifndef CHALLENGE_H -#define CHALLENGE_H 1 - -#include "pconfig.h" - -#include <stdint.h> -#ifdef ENABLE_SHA512 -#include <openssl/sha.h> -#endif - -#define HT_MD5 0x1 -#define HT_SHA512 0x2 - - -typedef struct challenge_plain_t { - /** tv_sec as returned by gettimeofday */ - uint32_t sec; - /** tv_usec as returned by gettimeofday + random value */ - uint32_t usec_rnd; - /** random values */ - uint32_t random[6]; -} __attribute__ ((packed)) challenge_plain_t; - -typedef struct challenge_digest_t { - uint8_t hash_type; - union { - unsigned char md5[kMD5_digest_size]; - unsigned char sha512[kSHA512_digest_size]; - }; -} __attribute__ ((packed)) challenge_digest_t; - -/** challenge_t: This structure contains the pseudo-random challenge used for - * authentication. If OpenSSL is available SHA512 will be used per default. - */ -typedef struct challenge_t { - challenge_plain_t plain; - challenge_digest_t digest; -} __attribute__ ((packed)) challenge_t; - -challenge_t *generate_challenge(void); - -void generate_response_md5(challenge_plain_t *plain, challenge_digest_t *digest); -int validate_challenge_md5(challenge_t *local, challenge_digest_t *remote); - -#ifdef ENABLE_SHA512 -void generate_response_sha512(challenge_plain_t *plain, challenge_digest_t *digest); -int validate_challenge_sha512(challenge_t *local, challenge_digest_t *remote); -#endif - -#endif |