1/* 2 * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1 3 * 4 * Extracted from chap_ms.c by James Carlson. 5 * 6 * Copyright (c) 1995 Eric Rosenquist. 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. The name(s) of the authors of this software must not be used to 21 * endorse or promote products derived from this software without 22 * prior written permission. 23 * 24 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 25 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 26 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 27 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 28 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 29 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 30 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 31 */ 32 33#include "netif/ppp/ppp_opts.h" 34#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ 35 36/* This header file is included in all PPP modules needing hashes and/or ciphers */ 37 38#ifndef PPPCRYPT_H 39#define PPPCRYPT_H 40 41/* 42 * If included PolarSSL copy is not used, user is expected to include 43 * external libraries in arch/cc.h (which is included by lwip/arch.h). 44 */ 45#include "lwip/arch.h" 46 47/* 48 * Map hashes and ciphers functions to PolarSSL 49 */ 50#if !LWIP_USE_EXTERNAL_MBEDTLS 51 52#include "netif/ppp/polarssl/md4.h" 53#define lwip_md4_context md4_context 54#define lwip_md4_init(context) 55#define lwip_md4_starts md4_starts 56#define lwip_md4_update md4_update 57#define lwip_md4_finish md4_finish 58#define lwip_md4_free(context) 59 60#include "netif/ppp/polarssl/md5.h" 61#define lwip_md5_context md5_context 62#define lwip_md5_init(context) 63#define lwip_md5_starts md5_starts 64#define lwip_md5_update md5_update 65#define lwip_md5_finish md5_finish 66#define lwip_md5_free(context) 67 68#include "netif/ppp/polarssl/sha1.h" 69#define lwip_sha1_context sha1_context 70#define lwip_sha1_init(context) 71#define lwip_sha1_starts sha1_starts 72#define lwip_sha1_update sha1_update 73#define lwip_sha1_finish sha1_finish 74#define lwip_sha1_free(context) 75 76#include "netif/ppp/polarssl/des.h" 77#define lwip_des_context des_context 78#define lwip_des_init(context) 79#define lwip_des_setkey_enc des_setkey_enc 80#define lwip_des_crypt_ecb des_crypt_ecb 81#define lwip_des_free(context) 82 83#include "netif/ppp/polarssl/arc4.h" 84#define lwip_arc4_context arc4_context 85#define lwip_arc4_init(context) 86#define lwip_arc4_setup arc4_setup 87#define lwip_arc4_crypt arc4_crypt 88#define lwip_arc4_free(context) 89 90#endif /* !LWIP_USE_EXTERNAL_MBEDTLS */ 91 92/* 93 * Map hashes and ciphers functions to mbed TLS 94 */ 95#if LWIP_USE_EXTERNAL_MBEDTLS 96 97#define lwip_md4_context mbedtls_md4_context 98#define lwip_md4_init mbedtls_md4_init 99#define lwip_md4_starts mbedtls_md4_starts 100#define lwip_md4_update mbedtls_md4_update 101#define lwip_md4_finish mbedtls_md4_finish 102#define lwip_md4_free mbedtls_md4_free 103 104#define lwip_md5_context mbedtls_md5_context 105#define lwip_md5_init mbedtls_md5_init 106#define lwip_md5_starts mbedtls_md5_starts 107#define lwip_md5_update mbedtls_md5_update 108#define lwip_md5_finish mbedtls_md5_finish 109#define lwip_md5_free mbedtls_md5_free 110 111#define lwip_sha1_context mbedtls_sha1_context 112#define lwip_sha1_init mbedtls_sha1_init 113#define lwip_sha1_starts mbedtls_sha1_starts 114#define lwip_sha1_update mbedtls_sha1_update 115#define lwip_sha1_finish mbedtls_sha1_finish 116#define lwip_sha1_free mbedtls_sha1_free 117 118#define lwip_des_context mbedtls_des_context 119#define lwip_des_init mbedtls_des_init 120#define lwip_des_setkey_enc mbedtls_des_setkey_enc 121#define lwip_des_crypt_ecb mbedtls_des_crypt_ecb 122#define lwip_des_free mbedtls_des_free 123 124#define lwip_arc4_context mbedtls_arc4_context 125#define lwip_arc4_init mbedtls_arc4_init 126#define lwip_arc4_setup mbedtls_arc4_setup 127#define lwip_arc4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer) 128#define lwip_arc4_free mbedtls_arc4_free 129 130#endif /* LWIP_USE_EXTERNAL_MBEDTLS */ 131 132void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key); 133 134#endif /* PPPCRYPT_H */ 135 136#endif /* PPP_SUPPORT */ 137