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
48extern "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
136void 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