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 #ifdef __cplusplus 48 extern "C" { 49 #endif 50 51 /* 52 * Map hashes and ciphers functions to PolarSSL 53 */ 54 #if !LWIP_USE_EXTERNAL_MBEDTLS 55 56 #include "netif/ppp/polarssl/md4.h" 57 #define lwip_md4_context md4_context 58 #define lwip_md4_init(context) 59 #define lwip_md4_starts md4_starts 60 #define lwip_md4_update md4_update 61 #define lwip_md4_finish md4_finish 62 #define lwip_md4_free(context) 63 64 #include "netif/ppp/polarssl/md5.h" 65 #define lwip_md5_context md5_context 66 #define lwip_md5_init(context) 67 #define lwip_md5_starts md5_starts 68 #define lwip_md5_update md5_update 69 #define lwip_md5_finish md5_finish 70 #define lwip_md5_free(context) 71 72 #include "netif/ppp/polarssl/sha1.h" 73 #define lwip_sha1_context sha1_context 74 #define lwip_sha1_init(context) 75 #define lwip_sha1_starts sha1_starts 76 #define lwip_sha1_update sha1_update 77 #define lwip_sha1_finish sha1_finish 78 #define lwip_sha1_free(context) 79 80 #include "netif/ppp/polarssl/des.h" 81 #define lwip_des_context des_context 82 #define lwip_des_init(context) 83 #define lwip_des_setkey_enc des_setkey_enc 84 #define lwip_des_crypt_ecb des_crypt_ecb 85 #define lwip_des_free(context) 86 87 #include "netif/ppp/polarssl/arc4.h" 88 #define lwip_arc4_context arc4_context 89 #define lwip_arc4_init(context) 90 #define lwip_arc4_setup arc4_setup 91 #define lwip_arc4_crypt arc4_crypt 92 #define lwip_arc4_free(context) 93 94 #endif /* !LWIP_USE_EXTERNAL_MBEDTLS */ 95 96 /* 97 * Map hashes and ciphers functions to mbed TLS 98 */ 99 #if LWIP_USE_EXTERNAL_MBEDTLS 100 101 #define lwip_md4_context mbedtls_md4_context 102 #define lwip_md4_init mbedtls_md4_init 103 #define lwip_md4_starts mbedtls_md4_starts 104 #define lwip_md4_update mbedtls_md4_update 105 #define lwip_md4_finish mbedtls_md4_finish 106 #define lwip_md4_free mbedtls_md4_free 107 108 #define lwip_md5_context mbedtls_md5_context 109 #define lwip_md5_init mbedtls_md5_init 110 #define lwip_md5_starts mbedtls_md5_starts 111 #define lwip_md5_update mbedtls_md5_update 112 #define lwip_md5_finish mbedtls_md5_finish 113 #define lwip_md5_free mbedtls_md5_free 114 115 #define lwip_sha1_context mbedtls_sha1_context 116 #define lwip_sha1_init mbedtls_sha1_init 117 #define lwip_sha1_starts mbedtls_sha1_starts 118 #define lwip_sha1_update mbedtls_sha1_update 119 #define lwip_sha1_finish mbedtls_sha1_finish 120 #define lwip_sha1_free mbedtls_sha1_free 121 122 #define lwip_des_context mbedtls_des_context 123 #define lwip_des_init mbedtls_des_init 124 #define lwip_des_setkey_enc mbedtls_des_setkey_enc 125 #define lwip_des_crypt_ecb mbedtls_des_crypt_ecb 126 #define lwip_des_free mbedtls_des_free 127 128 #define lwip_arc4_context mbedtls_arc4_context 129 #define lwip_arc4_init mbedtls_arc4_init 130 #define lwip_arc4_setup mbedtls_arc4_setup 131 #define lwip_arc4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer) 132 #define lwip_arc4_free mbedtls_arc4_free 133 134 #endif /* LWIP_USE_EXTERNAL_MBEDTLS */ 135 136 void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key); 137 138 #ifdef __cplusplus 139 } 140 #endif 141 142 #endif /* PPPCRYPT_H */ 143 144 #endif /* PPP_SUPPORT */ 145