1 | /*
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2 | * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1
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3 | *
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4 | * Extracted from chap_ms.c by James Carlson.
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5 | *
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6 | * Copyright (c) 1995 Eric Rosenquist. All rights reserved.
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7 | *
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8 | * Redistribution and use in source and binary forms, with or without
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9 | * modification, are permitted provided that the following conditions
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10 | * are met:
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11 | *
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12 | * 1. Redistributions of source code must retain the above copyright
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13 | * notice, this list of conditions and the following disclaimer.
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14 | *
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15 | * 2. Redistributions in binary form must reproduce the above copyright
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16 | * notice, this list of conditions and the following disclaimer in
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17 | * the documentation and/or other materials provided with the
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18 | * distribution.
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19 | *
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20 | * 3. The name(s) of the authors of this software must not be used to
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21 | * endorse or promote products derived from this software without
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22 | * prior written permission.
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23 | *
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24 | * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
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25 | * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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26 | * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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27 | * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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28 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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29 | * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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30 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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31 | */
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32 |
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33 | #include "netif/ppp/ppp_opts.h"
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34 | #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
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35 |
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36 | /* This header file is included in all PPP modules needing hashes and/or ciphers */
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37 |
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38 | #ifndef PPPCRYPT_H
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39 | #define PPPCRYPT_H
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40 |
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41 | /*
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42 | * If included PolarSSL copy is not used, user is expected to include
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43 | * external libraries in arch/cc.h (which is included by lwip/arch.h).
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44 | */
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45 | #include "lwip/arch.h"
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46 |
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47 | #ifdef __cplusplus
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48 | extern "C" {
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49 | #endif
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50 |
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51 | /*
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52 | * Map hashes and ciphers functions to PolarSSL
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53 | */
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54 | #if !LWIP_USE_EXTERNAL_MBEDTLS
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55 |
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56 | #include "netif/ppp/polarssl/md4.h"
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57 | #define lwip_md4_context md4_context
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58 | #define lwip_md4_init(context)
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59 | #define lwip_md4_starts md4_starts
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60 | #define lwip_md4_update md4_update
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61 | #define lwip_md4_finish md4_finish
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62 | #define lwip_md4_free(context)
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63 |
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64 | #include "netif/ppp/polarssl/md5.h"
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65 | #define lwip_md5_context md5_context
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66 | #define lwip_md5_init(context)
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67 | #define lwip_md5_starts md5_starts
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68 | #define lwip_md5_update md5_update
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69 | #define lwip_md5_finish md5_finish
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70 | #define lwip_md5_free(context)
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71 |
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72 | #include "netif/ppp/polarssl/sha1.h"
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73 | #define lwip_sha1_context sha1_context
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74 | #define lwip_sha1_init(context)
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75 | #define lwip_sha1_starts sha1_starts
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76 | #define lwip_sha1_update sha1_update
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77 | #define lwip_sha1_finish sha1_finish
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78 | #define lwip_sha1_free(context)
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79 |
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80 | #include "netif/ppp/polarssl/des.h"
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81 | #define lwip_des_context des_context
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82 | #define lwip_des_init(context)
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83 | #define lwip_des_setkey_enc des_setkey_enc
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84 | #define lwip_des_crypt_ecb des_crypt_ecb
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85 | #define lwip_des_free(context)
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86 |
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87 | #include "netif/ppp/polarssl/arc4.h"
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88 | #define lwip_arc4_context arc4_context
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89 | #define lwip_arc4_init(context)
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90 | #define lwip_arc4_setup arc4_setup
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91 | #define lwip_arc4_crypt arc4_crypt
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92 | #define lwip_arc4_free(context)
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93 |
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94 | #endif /* !LWIP_USE_EXTERNAL_MBEDTLS */
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95 |
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96 | /*
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97 | * Map hashes and ciphers functions to mbed TLS
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98 | */
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99 | #if LWIP_USE_EXTERNAL_MBEDTLS
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100 |
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101 | #define lwip_md4_context mbedtls_md4_context
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102 | #define lwip_md4_init mbedtls_md4_init
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103 | #define lwip_md4_starts mbedtls_md4_starts
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104 | #define lwip_md4_update mbedtls_md4_update
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105 | #define lwip_md4_finish mbedtls_md4_finish
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106 | #define lwip_md4_free mbedtls_md4_free
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107 |
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108 | #define lwip_md5_context mbedtls_md5_context
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109 | #define lwip_md5_init mbedtls_md5_init
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110 | #define lwip_md5_starts mbedtls_md5_starts
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111 | #define lwip_md5_update mbedtls_md5_update
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112 | #define lwip_md5_finish mbedtls_md5_finish
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113 | #define lwip_md5_free mbedtls_md5_free
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114 |
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115 | #define lwip_sha1_context mbedtls_sha1_context
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116 | #define lwip_sha1_init mbedtls_sha1_init
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117 | #define lwip_sha1_starts mbedtls_sha1_starts
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118 | #define lwip_sha1_update mbedtls_sha1_update
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119 | #define lwip_sha1_finish mbedtls_sha1_finish
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120 | #define lwip_sha1_free mbedtls_sha1_free
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121 |
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122 | #define lwip_des_context mbedtls_des_context
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123 | #define lwip_des_init mbedtls_des_init
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124 | #define lwip_des_setkey_enc mbedtls_des_setkey_enc
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125 | #define lwip_des_crypt_ecb mbedtls_des_crypt_ecb
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126 | #define lwip_des_free mbedtls_des_free
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127 |
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128 | #define lwip_arc4_context mbedtls_arc4_context
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129 | #define lwip_arc4_init mbedtls_arc4_init
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130 | #define lwip_arc4_setup mbedtls_arc4_setup
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131 | #define lwip_arc4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer)
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132 | #define lwip_arc4_free mbedtls_arc4_free
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133 |
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134 | #endif /* LWIP_USE_EXTERNAL_MBEDTLS */
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135 |
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136 | void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key);
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137 |
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138 | #ifdef __cplusplus
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139 | }
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140 | #endif
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141 |
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142 | #endif /* PPPCRYPT_H */
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143 |
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144 | #endif /* PPP_SUPPORT */
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