diff options
| author | cvs2svn <cvs2svn@FreeBSD.org> | 1996-10-06 07:58:04 +0000 | 
|---|---|---|
| committer | cvs2svn <cvs2svn@FreeBSD.org> | 1996-10-06 07:58:04 +0000 | 
| commit | 34181e06a7fb1dad00312dfc5e13b2f0d4d8f8ef (patch) | |
| tree | a05adbf3b725986cc9283700c0cadd7067e18d01 /secure/lib/libtelnet/krb4encpwd.c | |
| parent | 2cbfdf51d83d2fc0f0396562250a188cb6faba48 (diff) | |
Diffstat (limited to 'secure/lib/libtelnet/krb4encpwd.c')
| -rw-r--r-- | secure/lib/libtelnet/krb4encpwd.c | 446 | 
1 files changed, 0 insertions, 446 deletions
| diff --git a/secure/lib/libtelnet/krb4encpwd.c b/secure/lib/libtelnet/krb4encpwd.c deleted file mode 100644 index 00f32e8532b9..000000000000 --- a/secure/lib/libtelnet/krb4encpwd.c +++ /dev/null @@ -1,446 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - *	The Regents of the University of California.  All rights reserved. - * - * Redistribution and use 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 the University of - *	California, Berkeley and its contributors. - * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. - */ - -#ifndef lint -static char sccsid[] = "@(#)krb4encpwd.c	8.3 (Berkeley) 5/30/95"; -#endif /* not lint */ - - -#ifdef	KRB4_ENCPWD -/* - * COPYRIGHT (C) 1990 DIGITAL EQUIPMENT CORPORATION - * ALL RIGHTS RESERVED - * - * "Digital Equipment Corporation authorizes the reproduction, - * distribution and modification of this software subject to the following - * restrictions: - * - * 1.  Any partial or whole copy of this software, or any modification - * thereof, must include this copyright notice in its entirety. - * - * 2.  This software is supplied "as is" with no warranty of any kind, - * expressed or implied, for any purpose, including any warranty of fitness - * or merchantibility.  DIGITAL assumes no responsibility for the use or - * reliability of this software, nor promises to provide any form of - * support for it on any basis. - * - * 3.  Distribution of this software is authorized only if no profit or - * remuneration of any kind is received in exchange for such distribution. - * - * 4.  This software produces public key authentication certificates - * bearing an expiration date established by DIGITAL and RSA Data - * Security, Inc.  It may cease to generate certificates after the expiration - * date.  Any modification of this software that changes or defeats - * the expiration date or its effect is unauthorized. - * - * 5.  Software that will renew or extend the expiration date of - * authentication certificates produced by this software may be obtained - * from RSA Data Security, Inc., 10 Twin Dolphin Drive, Redwood City, CA - * 94065, (415)595-8782, or from DIGITAL" - * - */ - -#include <sys/types.h> -#include <arpa/telnet.h> -#include <pwd.h> -#include <stdio.h> - -#include <des.h> -#include <krb.h> -#ifdef	__STDC__ -#include <stdlib.h> -#endif -#ifdef	NO_STRING_H -#include <strings.h> -#else -#include <string.h> -#endif - -#include "encrypt.h" -#include "auth.h" -#include "misc.h" - -int krb_mk_encpwd_req P((KTEXT, char *, char *, char *, char *, char *, char *)); -int krb_rd_encpwd_req P((KTEXT, char *, char *, u_long, AUTH_DAT *, char *, char *, char *, char *)); - -extern auth_debug_mode; - -static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0, -			  		AUTHTYPE_KRB4_ENCPWD, }; -static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION, -					TELQUAL_NAME, }; - -#define	KRB4_ENCPWD_AUTH	0	/* Authentication data follows */ -#define	KRB4_ENCPWD_REJECT	1	/* Rejected (reason might follow) */ -#define KRB4_ENCPWD_ACCEPT	2	/* Accepted */ -#define	KRB4_ENCPWD_CHALLENGE	3	/* Challenge for mutual auth. */ -#define	KRB4_ENCPWD_ACK		4	/* Acknowledge */ - -#define KRB_SERVICE_NAME    "rcmd" - -static	KTEXT_ST auth; -static	char name[ANAME_SZ]; -static	char user_passwd[ANAME_SZ]; -static	AUTH_DAT adat = { 0 }; -#ifdef	ENCRYPTION -static Block	session_key	= { 0 }; -#endif	/* ENCRYPTION */ -static Schedule sched; -static char  challenge[REALM_SZ]; - -	static int -Data(ap, type, d, c) -	Authenticator *ap; -	int type; -	void *d; -	int c; -{ -        unsigned char *p = str_data + 4; -	unsigned char *cd = (unsigned char *)d; - -	if (c == -1) -		c = strlen((char *)cd); - -        if (0) { -                printf("%s:%d: [%d] (%d)", -                        str_data[3] == TELQUAL_IS ? ">>>IS" : ">>>REPLY", -                        str_data[3], -                        type, c); -                printd(d, c); -                printf("\r\n"); -        } -	*p++ = ap->type; -	*p++ = ap->way; -	*p++ = type; -        while (c-- > 0) { -                if ((*p++ = *cd++) == IAC) -                        *p++ = IAC; -        } -        *p++ = IAC; -        *p++ = SE; -	if (str_data[3] == TELQUAL_IS) -		printsub('>', &str_data[2], p - (&str_data[2])); -        return(net_write(str_data, p - str_data)); -} - -	int -krb4encpwd_init(ap, server) -	Authenticator *ap; -	int server; -{ -        char hostname[80], *cp, *realm; -	C_Block skey; - -	if (server) { -		str_data[3] = TELQUAL_REPLY; -	} else { -		str_data[3] = TELQUAL_IS; -		gethostname(hostname, sizeof(hostname)); -		realm = krb_realmofhost(hostname); -		cp = strchr(hostname, '.'); -		if (*cp != NULL) *cp = NULL; -		if (read_service_key(KRB_SERVICE_NAME, hostname, realm, 0, -					KEYFILE, (char *)skey)) { -		  return(0); -		} -	} -	return(1); -} - -	int -krb4encpwd_send(ap) -	Authenticator *ap; -{ - -	printf("[ Trying KRB4ENCPWD ... ]\n"); -	if (!UserNameRequested) { -		return(0); -	} -	if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) { -		return(0); -	} - -	if (!Data(ap, KRB4_ENCPWD_ACK, (void *)NULL, 0)) { -		return(0); -	} - -	return(1); -} - -	void -krb4encpwd_is(ap, data, cnt) -	Authenticator *ap; -	unsigned char *data; -	int cnt; -{ -	Session_Key skey; -	Block datablock; -	char  r_passwd[ANAME_SZ], r_user[ANAME_SZ]; -	char  lhostname[ANAME_SZ], *cp; -	int r; -	time_t now; - -	if (cnt-- < 1) -		return; -	switch (*data++) { -	case KRB4_ENCPWD_AUTH: -		memmove((void *)auth.dat, (void *)data, auth.length = cnt); - -		gethostname(lhostname, sizeof(lhostname)); -		if ((cp = strchr(lhostname, '.')) != 0)  *cp = '\0'; - -		if (r = krb_rd_encpwd_req(&auth, KRB_SERVICE_NAME, lhostname, 0, &adat, NULL, challenge, r_user, r_passwd)) { -			Data(ap, KRB4_ENCPWD_REJECT, (void *)"Auth failed", -1); -			auth_finished(ap, AUTH_REJECT); -			return; -		} -		auth_encrypt_userpwd(r_passwd); -		if (passwdok(UserNameRequested, UserPassword) == 0) { -		  /* -		   *  illegal username and password -		   */ -		  Data(ap, KRB4_ENCPWD_REJECT, (void *)"Illegal password", -1); -		  auth_finished(ap, AUTH_REJECT); -		  return; -		} - -		memmove((void *)session_key, (void *)adat.session, sizeof(Block)); -		Data(ap, KRB4_ENCPWD_ACCEPT, (void *)0, 0); -		auth_finished(ap, AUTH_USER); -		break; - -	case KRB4_ENCPWD_CHALLENGE: -		/* -		 *  Take the received random challenge text and save -		 *  for future authentication. -		 */ -		memmove((void *)challenge, (void *)data, sizeof(Block)); -		break; - - -	case KRB4_ENCPWD_ACK: -		/* -		 *  Receive ack, if mutual then send random challenge -		 */ - -		/* -		 * If we are doing mutual authentication, get set up to send -		 * the challenge, and verify it when the response comes back. -		 */ - -		if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) { -		  register int i; - -		  time(&now); -		  sprintf(challenge, "%x", now); -		  Data(ap, KRB4_ENCPWD_CHALLENGE, (void *)challenge, strlen(challenge)); -		} -		break; - -	default: -		Data(ap, KRB4_ENCPWD_REJECT, 0, 0); -		break; -	} -} - - -	void -krb4encpwd_reply(ap, data, cnt) -	Authenticator *ap; -	unsigned char *data; -	int cnt; -{ -	Session_Key skey; -	KTEXT_ST krb_token; -	Block enckey; -	CREDENTIALS cred; -	int r; -	char        randchal[REALM_SZ], instance[ANAME_SZ], *cp; -        char        hostname[80], *realm; - -	if (cnt-- < 1) -		return; -	switch (*data++) { -	case KRB4_ENCPWD_REJECT: -		if (cnt > 0) { -			printf("[ KRB4_ENCPWD refuses authentication because %.*s ]\r\n", -				cnt, data); -		} else -			printf("[ KRB4_ENCPWD refuses authentication ]\r\n"); -		auth_send_retry(); -		return; -	case KRB4_ENCPWD_ACCEPT: -		printf("[ KRB4_ENCPWD accepts you ]\n"); -		auth_finished(ap, AUTH_USER); -		return; -	case KRB4_ENCPWD_CHALLENGE: -		/* -		 * Verify that the response to the challenge is correct. -		 */ - -		gethostname(hostname, sizeof(hostname)); -		realm = krb_realmofhost(hostname); -		memmove((void *)challenge, (void *)data, cnt); -		memset(user_passwd, 0, sizeof(user_passwd)); -		local_des_read_pw_string(user_passwd, sizeof(user_passwd)-1, "Password: ", 0); -		UserPassword = user_passwd; -		Challenge = challenge; -		strcpy(instance, RemoteHostName); -		if ((cp = strchr(instance, '.')) != 0)  *cp = '\0'; - -		if (r = krb_mk_encpwd_req(&krb_token, KRB_SERVICE_NAME, instance, realm, Challenge, UserNameRequested, user_passwd)) { -		  krb_token.length = 0; -		} - -		if (!Data(ap, KRB4_ENCPWD_AUTH, (void *)krb_token.dat, krb_token.length)) { -		  return; -		} - -		break; - -	default: -		return; -	} -} - -	int -krb4encpwd_status(ap, name, level) -	Authenticator *ap; -	char *name; -	int level; -{ - -	if (level < AUTH_USER) -		return(level); - -	if (UserNameRequested && passwdok(UserNameRequested, UserPassword)) { -		strcpy(name, UserNameRequested); -		return(AUTH_VALID); -	} else { -		return(AUTH_USER); -	} -} - -#define	BUMP(buf, len)		while (*(buf)) {++(buf), --(len);} -#define	ADDC(buf, len, c)	if ((len) > 0) {*(buf)++ = (c); --(len);} - -	void -krb4encpwd_printsub(data, cnt, buf, buflen) -	unsigned char *data, *buf; -	int cnt, buflen; -{ -	char lbuf[32]; -	register int i; - -	buf[buflen-1] = '\0';		/* make sure its NULL terminated */ -	buflen -= 1; - -	switch(data[3]) { -	case KRB4_ENCPWD_REJECT:	/* Rejected (reason might follow) */ -		strncpy((char *)buf, " REJECT ", buflen); -		goto common; - -	case KRB4_ENCPWD_ACCEPT:	/* Accepted (name might follow) */ -		strncpy((char *)buf, " ACCEPT ", buflen); -	common: -		BUMP(buf, buflen); -		if (cnt <= 4) -			break; -		ADDC(buf, buflen, '"'); -		for (i = 4; i < cnt; i++) -			ADDC(buf, buflen, data[i]); -		ADDC(buf, buflen, '"'); -		ADDC(buf, buflen, '\0'); -		break; - -	case KRB4_ENCPWD_AUTH:		/* Authentication data follows */ -		strncpy((char *)buf, " AUTH", buflen); -		goto common2; - -	case KRB4_ENCPWD_CHALLENGE: -		strncpy((char *)buf, " CHALLENGE", buflen); -		goto common2; - -	case KRB4_ENCPWD_ACK: -		strncpy((char *)buf, " ACK", buflen); -		goto common2; - -	default: -		sprintf(lbuf, " %d (unknown)", data[3]); -		strncpy((char *)buf, lbuf, buflen); -	common2: -		BUMP(buf, buflen); -		for (i = 4; i < cnt; i++) { -			sprintf(lbuf, " %d", data[i]); -			strncpy((char *)buf, lbuf, buflen); -			BUMP(buf, buflen); -		} -		break; -	} -} - -int passwdok(name, passwd) -char *name, *passwd; -{ -  char *crypt(); -  char *salt, *p; -  struct passwd *pwd; -  int   passwdok_status = 0; - -  if (pwd = getpwnam(name)) -    salt = pwd->pw_passwd; -  else salt = "xx"; - -  p = crypt(passwd, salt); - -  if (pwd && !strcmp(p, pwd->pw_passwd)) { -    passwdok_status = 1; -  } else passwdok_status = 0; -  return(passwdok_status); -} - -#endif - -#ifdef notdef - -prkey(msg, key) -	char *msg; -	unsigned char *key; -{ -	register int i; -	printf("%s:", msg); -	for (i = 0; i < 8; i++) -		printf(" %3d", key[i]); -	printf("\r\n"); -} -#endif | 
