Mercurial > hg > freeDiameter
view extensions/app_diameap/plugins/eap_md5/eap_md5.c @ 959:8881967d087c
Silence gcrypt warnings in more places.
author | Thomas Klausner <tk@giga.or.at> |
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date | Thu, 28 Feb 2013 11:08:44 +0100 |
parents | 0c6e50a5291d |
children | 0117a7746b21 |
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/***************************************************************************************************** * Software License Agreement (BSD License) * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp> * * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University, and the WIDE Project * All rights reserved. * * Redistribution and use of this software in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>. * * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *****************************************************************************************************/ #include "../../plugins.h" #pragma GCC diagnostic ignored "-Wdeprecated-declarations" #include <gcrypt.h> #pragma GCC diagnostic warning "-Wdeprecated-declarations" #define CHALLENGE_LEN 16 struct eap_md5_data { enum { EAP_MD5_CONTINUE, EAP_MD5_SUCCESS, EAP_MD5_FAILURE } state; u8 * challenge; }; int eap_md5_configure(char * configfile); int eap_md5_init(struct eap_state_machine *smd); int eap_md5_initPickUp(struct eap_state_machine *smd); int eap_md5_buildReq(struct eap_state_machine *smd, u8 eap_md5, struct eap_packet * eapPacket); boolean eap_md5_check(struct eap_state_machine *smd, struct eap_packet eapRespData); int eap_md5_process(struct eap_state_machine *smd, struct eap_packet eapRespData); boolean eap_md5_isDone(struct eap_state_machine *smd); void eap_md5_free(void * data); 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") ; int eap_md5_configure(char * configfile) { gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0); return 0; } int eap_md5_init(struct eap_state_machine *smd) { struct eap_md5_data *data = NULL; CHECK_MALLOC(data = malloc(sizeof(struct eap_md5_data))); memset(data, 0, sizeof(struct eap_md5_data)); data->state = EAP_MD5_CONTINUE; data->challenge = NULL; smd->methodData = (struct eap_md5_data*) data; return 0; } int eap_md5_buildReq(struct eap_state_machine *smd, u8 id, struct eap_packet * eapPacket) { struct eap_md5_data * data; u8 *payload, *challenge; data = (struct eap_md5_data *) smd->methodData; CHECK_MALLOC( challenge=malloc(sizeof(u8)*CHALLENGE_LEN)); CHECK_MALLOC( payload=malloc(sizeof(u8)*(CHALLENGE_LEN+1))); memset(payload, 0, sizeof(u8) * (CHALLENGE_LEN + 1)); gcry_create_nonce(challenge,CHALLENGE_LEN); U8COPY(payload, 1, CHALLENGE_LEN, challenge); payload[0] = (u8) CHALLENGE_LEN; CHECK_FCT(diameap_eap_new(EAP_REQUEST, id, TYPE_EAP_MD5, payload, CHALLENGE_LEN + 1,eapPacket)); CHECK_MALLOC(data->challenge=realloc(data->challenge,sizeof(u8)*CHALLENGE_LEN)); U8COPY(data->challenge,0,CHALLENGE_LEN,challenge); smd->methodData = data; free(challenge); challenge=NULL; free(payload); payload=NULL; return 0; } boolean eap_md5_check(struct eap_state_machine *smd, struct eap_packet eapRespData) { eap_type type; if(diameap_eap_get_type(eapRespData,&type)!=0){ return FALSE; } if (type == TYPE_EAP_MD5) { u16 length; CHECK_FCT(diameap_eap_get_length(eapRespData,&length)); if ((int) length < 6) { TRACE_DEBUG(INFO,"%s[EAP MD5 plugin] Incorrect EAP packet received (length = %d ).",DIAMEAP_EXTENSION,length); return FALSE; } return TRUE; } return FALSE; } int eap_md5_process(struct eap_state_machine *smd, struct eap_packet eapRespData) { struct eap_md5_data * data; int wordlen = 0, i = 0; u8 * word, *hash, id; data = (struct eap_md5_data*) smd->methodData; wordlen = 1 + smd->user.passwordLength + CHALLENGE_LEN; CHECK_MALLOC(word = malloc(sizeof(u8)*wordlen)); memset(word, 0, sizeof(u8) * wordlen); CHECK_FCT(diameap_eap_get_identifier(eapRespData,&id)); *word = id; U8COPY(word,1,smd->user.passwordLength,smd->user.password); U8COPY(word,1+smd->user.passwordLength,CHALLENGE_LEN,data->challenge); CHECK_MALLOC(hash = malloc(sizeof(u8)*16)); md5hash(word, wordlen, hash); for (i = 0; i < CHALLENGE_LEN; i++) { if (G8(hash + i) != G8(eapRespData.data + 6 + i)) { data->state = EAP_MD5_FAILURE; } } if (data->state != EAP_MD5_FAILURE) { data->state = EAP_MD5_SUCCESS; smd->user.success = TRUE; } smd->methodData = data; free(hash); hash=NULL; free(word); word=NULL; return 0; } boolean eap_md5_isDone(struct eap_state_machine *smd) { struct eap_md5_data *data; data = (struct eap_md5_data*) smd->methodData; if (data->state != EAP_MD5_CONTINUE) { return TRUE; } return FALSE; } void eap_md5_free(void * mdata) { struct eap_md5_data *data; data = (struct eap_md5_data*) mdata; free(data->challenge); data->challenge=NULL; free(data); data=NULL; }