113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* PPP Secret Key Module
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*
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* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
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*
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* Copyright (C) 1994, Internet Initiative Japan, Inc. All rights reserverd.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the Internet Initiative Japan, Inc. The name of the
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* IIJ may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id:$
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*
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* TODO:
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* o Imprement check against with registerd IP addresses.
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*/
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#include "fsm.h"
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#include "ipcp.h"
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extern FILE *OpenSecret();
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extern void CloseSecret();
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int
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AuthValidate(fname, system, key)
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char *fname, *system, *key;
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{
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FILE *fp;
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int n;
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char *vector[20];
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char buff[200];
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char passwd[100];
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fp = OpenSecret(fname);
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if (fp == NULL)
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return(0);
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while (fgets(buff, sizeof(buff), fp)) {
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if (buff[0] == '#')
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continue;
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buff[strlen(buff)-1] = 0;
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bzero(vector, sizeof(vector));
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n = MakeArgs(buff, &vector);
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if (n < 2)
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continue;
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if (strcmp(vector[0], system) == 0) {
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ExpandString(vector[1], passwd, 0);
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if (strcmp(passwd, key) == 0) {
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CloseSecret(fp);
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bzero(&DefHisAddress, sizeof(DefHisAddress));
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n -= 2;
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if (n > 0) {
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ParseAddr(n--, &vector[2],
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&DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width);
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}
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IpcpInit();
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return(1); /* Valid */
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}
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}
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}
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CloseSecret(fp);
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return(0); /* Invalid */
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}
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char *
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AuthGetSecret(fname, system, len, setaddr)
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char *fname, *system;
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int len, setaddr;
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{
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FILE *fp;
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int n;
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char *vector[20];
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char buff[200];
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static char passwd[100];
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fp = OpenSecret(fname);
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if (fp == NULL)
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return(NULL);
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while (fgets(buff, sizeof(buff), fp)) {
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if (buff[0] == '#')
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continue;
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buff[strlen(buff)-1] = 0;
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bzero(vector, sizeof(vector));
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n = MakeArgs(buff, &vector);
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if (n < 2)
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continue;
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if (strlen(vector[0]) == len && strncmp(vector[0], system, len) == 0) {
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ExpandString(vector[1], passwd, 0);
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if (setaddr) {
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bzero(&DefHisAddress, sizeof(DefHisAddress));
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}
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n -= 2;
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if (n > 0 && setaddr) {
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#ifdef DEBUG
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LogPrintf(LOG_LCP, "*** n = %d, %s\n", n, vector[2]);
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#endif
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ParseAddr(n--, &vector[2],
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&DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width);
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IpcpInit();
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}
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return(passwd);
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}
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}
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CloseSecret(fp);
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return(NULL); /* Invalid */
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}
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