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annotate extensions/app_diameap/plugins/eap_md5/eap_md5.c @ 959:8881967d087c

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Silence gcrypt warnings in more places.
author Thomas Klausner <tk@giga.or.at>
date Thu, 28 Feb 2013 11:08:44 +0100
parents 0c6e50a5291d
children 0117a7746b21
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1 /*****************************************************************************************************
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2 * Software License Agreement (BSD License)
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3 * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
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4 *
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5 * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University, and the WIDE Project
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6 * All rights reserved.
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7 *
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8 * Redistribution and use of this software in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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10 *
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11 * 1. Redistributions of source code must retain the above copyright
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12 * notice, this list of conditions and the following disclaimer.
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13 *
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14 * 2. Redistributions in binary form must reproduce the above copyright
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15 * notice, this list of conditions and the following disclaimer in the
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16 * documentation and/or other materials provided with the distribution.
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17 *
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18 * 3. All advertising materials mentioning features or use of this software
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19 * must display the following acknowledgement:
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20 * This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>.
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21 *
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22 * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the
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23 * names of its contributors may be used to endorse or promote products
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24 * derived from this software without specific prior written permission.
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25 *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY
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27 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
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30 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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36 *****************************************************************************************************/
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37
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38
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39 #include "../../plugins.h"
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40 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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41 #include <gcrypt.h>
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42 #pragma GCC diagnostic warning "-Wdeprecated-declarations"
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43
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44 #define CHALLENGE_LEN 16
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45
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46 struct eap_md5_data
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47 {
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48 enum
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49 {
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50 EAP_MD5_CONTINUE, EAP_MD5_SUCCESS, EAP_MD5_FAILURE
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51 } state;
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52 u8 * challenge;
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53 };
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54
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55 int eap_md5_configure(char * configfile);
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56 int eap_md5_init(struct eap_state_machine *smd);
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57 int eap_md5_initPickUp(struct eap_state_machine *smd);
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58 int eap_md5_buildReq(struct eap_state_machine *smd, u8 eap_md5,
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59 struct eap_packet * eapPacket);
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60 boolean eap_md5_check(struct eap_state_machine *smd, struct eap_packet eapRespData);
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61 int eap_md5_process(struct eap_state_machine *smd, struct eap_packet eapRespData);
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62 boolean eap_md5_isDone(struct eap_state_machine *smd);
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63 void eap_md5_free(void * data);
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64
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65 REGISTER_METHOD("eap_md5", "eap_md5_configure", "eap_md5_init", "eap_md5_initPickUp", "eap_md5_buildReq", NULL, "eap_md5_check", "eap_md5_process", "eap_md5_isDone", NULL, NULL, "eap_md5_free")
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66 ;
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67
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68 int eap_md5_configure(char * configfile)
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69 {
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70 gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0);
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71
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72 return 0;
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73 }
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74
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75 int eap_md5_init(struct eap_state_machine *smd)
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76 {
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77 struct eap_md5_data *data = NULL;
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78 CHECK_MALLOC(data = malloc(sizeof(struct eap_md5_data)));
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79 memset(data, 0, sizeof(struct eap_md5_data));
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80 data->state = EAP_MD5_CONTINUE;
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81 data->challenge = NULL;
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82 smd->methodData = (struct eap_md5_data*) data;
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83 return 0;
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84 }
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85
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86
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87 int eap_md5_buildReq(struct eap_state_machine *smd, u8 id,
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88 struct eap_packet * eapPacket)
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89 {
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90 struct eap_md5_data * data;
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91 u8 *payload, *challenge;
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92
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93 data = (struct eap_md5_data *) smd->methodData;
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94 CHECK_MALLOC( challenge=malloc(sizeof(u8)*CHALLENGE_LEN));
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95 CHECK_MALLOC( payload=malloc(sizeof(u8)*(CHALLENGE_LEN+1)));
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96 memset(payload, 0, sizeof(u8) * (CHALLENGE_LEN + 1));
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97
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98 gcry_create_nonce(challenge,CHALLENGE_LEN);
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99 U8COPY(payload, 1, CHALLENGE_LEN, challenge);
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100 payload[0] = (u8) CHALLENGE_LEN;
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101 CHECK_FCT(diameap_eap_new(EAP_REQUEST, id, TYPE_EAP_MD5, payload, CHALLENGE_LEN
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102 + 1,eapPacket));
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103 CHECK_MALLOC(data->challenge=realloc(data->challenge,sizeof(u8)*CHALLENGE_LEN));
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104 U8COPY(data->challenge,0,CHALLENGE_LEN,challenge);
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105
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106 smd->methodData = data;
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107
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108 free(challenge);
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109 challenge=NULL;
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110 free(payload);
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111 payload=NULL;
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112
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
113 return 0;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
114 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
115
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
116
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
117 boolean eap_md5_check(struct eap_state_machine *smd, struct eap_packet eapRespData)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
118 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
119 eap_type type;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
120 if(diameap_eap_get_type(eapRespData,&type)!=0){
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
121 return FALSE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
122 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
123 if (type == TYPE_EAP_MD5)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
124 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
125 u16 length;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
126 CHECK_FCT(diameap_eap_get_length(eapRespData,&length));
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
127 if ((int) length < 6)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
128 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
129 TRACE_DEBUG(INFO,"%s[EAP MD5 plugin] Incorrect EAP packet received (length = %d ).",DIAMEAP_EXTENSION,length);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
130 return FALSE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
131 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
132 return TRUE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
133 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
134 return FALSE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
135 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
136
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
137
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
138
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
139 int eap_md5_process(struct eap_state_machine *smd, struct eap_packet eapRespData)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
140 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
141
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
142 struct eap_md5_data * data;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
143 int wordlen = 0, i = 0;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
144 u8 * word, *hash, id;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
145 data = (struct eap_md5_data*) smd->methodData;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
146 wordlen = 1 + smd->user.passwordLength + CHALLENGE_LEN;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
147 CHECK_MALLOC(word = malloc(sizeof(u8)*wordlen));
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
148 memset(word, 0, sizeof(u8) * wordlen);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
149 CHECK_FCT(diameap_eap_get_identifier(eapRespData,&id));
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
150 *word = id;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
151 U8COPY(word,1,smd->user.passwordLength,smd->user.password);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
152 U8COPY(word,1+smd->user.passwordLength,CHALLENGE_LEN,data->challenge);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
153 CHECK_MALLOC(hash = malloc(sizeof(u8)*16));
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
154
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
155 md5hash(word, wordlen, hash);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
156
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
157
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
158 for (i = 0; i < CHALLENGE_LEN; i++)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
159 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
160 if (G8(hash + i) != G8(eapRespData.data + 6 + i))
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
161 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
162 data->state = EAP_MD5_FAILURE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
163 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
164 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
165
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
166 if (data->state != EAP_MD5_FAILURE)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
167 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
168 data->state = EAP_MD5_SUCCESS;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
169 smd->user.success = TRUE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
170 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
171
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
172 smd->methodData = data;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
173 free(hash);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
174 hash=NULL;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
175 free(word);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
176 word=NULL;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
177 return 0;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
178 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
179
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
180 boolean eap_md5_isDone(struct eap_state_machine *smd)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
181 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
182 struct eap_md5_data *data;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
183 data = (struct eap_md5_data*) smd->methodData;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
184 if (data->state != EAP_MD5_CONTINUE)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
185 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
186 return TRUE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
187 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
188 return FALSE;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
189 }
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
190
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
191
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
192 void eap_md5_free(void * mdata)
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
193 {
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
194 struct eap_md5_data *data;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
195 data = (struct eap_md5_data*) mdata;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
196 free(data->challenge);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
197 data->challenge=NULL;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
198 free(data);
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
199 data=NULL;
0c6e50a5291d New app_diameap Diameter EAP Application
Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
parents:
diff changeset
200 }
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