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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@50 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Unknown User d91-jda
1995-07-17 15:42:43 +00:00
parent 0469eaedfa
commit e9eb97b897
7 changed files with 3496 additions and 0 deletions
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1013
appl/telnet/libtelnet/encrypt.c Normal file
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appl/telnet/libtelnet/kerberos5.c Normal file
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/*
* $Source$
* $Author$
* $Id$
*/
#if !defined(lint) && !defined(SABER)
static
#ifdef __STDC__
const
#endif
char rcsid_kerberos5_c[] = "$Id$";
#endif /* lint */
/*-
* Copyright (c) 1991, 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[] = "@(#)kerberos5.c 8.3 (Berkeley) 5/30/95";
#endif /* not lint */
/*
* Copyright (C) 1990 by the Massachusetts Institute of Technology
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#ifdef KRB5
#include <arpa/telnet.h>
#include <stdio.h>
#include <krb5/krb5.h>
#include <krb5/asn1.h>
#include <krb5/crc-32.h>
#include <krb5/los-proto.h>
#include <krb5/ext-proto.h>
#include <com_err.h>
#include <netdb.h>
#include <ctype.h>
/* kerberos 5 include files (ext-proto.h) will get an appropriate stdlib.h
and string.h/strings.h */
#include "encrypt.h"
#include "auth.h"
#include "misc.h"
extern auth_debug_mode;
#ifdef FORWARD
int forward_flags = 0; /* Flags get set in telnet/main.c on -f and -F */
/* These values need to be the same as those defined in telnet/main.c. */
/* Either define them in both places, or put in some common header file. */
#define OPTS_FORWARD_CREDS 0x00000002
#define OPTS_FORWARDABLE_CREDS 0x00000001
void kerberos5_forward();
#endif /* FORWARD */
static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
AUTHTYPE_KERBEROS_V5, };
/*static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION,
TELQUAL_NAME, };*/
#define KRB_AUTH 0 /* Authentication data follows */
#define KRB_REJECT 1 /* Rejected (reason might follow) */
#define KRB_ACCEPT 2 /* Accepted */
#define KRB_RESPONSE 3 /* Response for mutual auth. */
#ifdef FORWARD
#define KRB_FORWARD 4 /* Forwarded credentials follow */
#define KRB_FORWARD_ACCEPT 5 /* Forwarded credentials accepted */
#define KRB_FORWARD_REJECT 6 /* Forwarded credentials rejected */
#endif /* FORWARD */
static krb5_data auth;
/* telnetd gets session key from here */
static krb5_tkt_authent *authdat = NULL;
/* telnet matches the AP_REQ and AP_REP with this */
static krb5_authenticator authenticator;
/* some compilers can't hack void *, so we use the Kerberos krb5_pointer,
which is either void * or char *, depending on the compiler. */
#define Voidptr krb5_pointer
Block session_key;
static int
Data(ap, type, d, c)
Authenticator *ap;
int type;
Voidptr d;
int c;
{
unsigned char *p = str_data + 4;
unsigned char *cd = (unsigned char *)d;
if (c == -1)
c = strlen((char *)cd);
if (auth_debug_mode) {
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
kerberos5_init(ap, server)
Authenticator *ap;
int server;
{
if (server)
str_data[3] = TELQUAL_REPLY;
else
str_data[3] = TELQUAL_IS;
krb5_init_ets();
return(1);
}
int
kerberos5_send(ap)
Authenticator *ap;
{
char **realms;
char *name;
char *p1, *p2;
krb5_checksum ksum;
krb5_octet sum[CRC32_CKSUM_LENGTH];
krb5_principal server;
krb5_error_code r;
krb5_ccache ccache;
krb5_creds creds; /* telnet gets session key from here */
extern krb5_flags krb5_kdc_default_options;
int ap_opts;
ksum.checksum_type = CKSUMTYPE_CRC32;
ksum.contents = sum;
ksum.length = sizeof(sum);
memset((Voidptr )sum, 0, sizeof(sum));
if (!UserNameRequested) {
if (auth_debug_mode) {
printf("Kerberos V5: no user name supplied\r\n");
}
return(0);
}
if (r = krb5_cc_default(&ccache)) {
if (auth_debug_mode) {
printf("Kerberos V5: could not get default ccache\r\n");
}
return(0);
}
if ((name = malloc(strlen(RemoteHostName)+1)) == NULL) {
if (auth_debug_mode)
printf("Out of memory for hostname in Kerberos V5\r\n");
return(0);
}
if (r = krb5_get_host_realm(RemoteHostName, &realms)) {
if (auth_debug_mode)
printf("Kerberos V5: no realm for %s\r\n", RemoteHostName);
free(name);
return(0);
}
p1 = RemoteHostName;
p2 = name;
while (*p2 = *p1++) {
if (isupper(*p2))
*p2 |= 040;
++p2;
}
if (r = krb5_build_principal_ext(&server,
strlen(realms[0]), realms[0],
4, "host",
p2 - name, name,
0)) {
if (auth_debug_mode) {
printf("Kerberos V5: failure setting up principal (%s)\r\n",
error_message(r));
}
free(name);
krb5_free_host_realm(realms);
return(0);
}
memset((char *)&creds, 0, sizeof(creds));
creds.server = server;
if (r = krb5_cc_get_principal(ccache, &creds.client)) {
if (auth_debug_mode) {
printf("Kerberos V5: failure on principal (%s)\r\n",
error_message(r));
}
free(name);
krb5_free_principal(server);
krb5_free_host_realm(realms);
return(0);
}
if (r = krb5_get_credentials(krb5_kdc_default_options, ccache, &creds)) {
if (auth_debug_mode) {
printf("Kerberos V5: failure on credentials(%d)\r\n",r);
}
free(name);
krb5_free_host_realm(realms);
krb5_free_principal(server);
return(0);
}
if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL)
ap_opts = AP_OPTS_MUTUAL_REQUIRED;
else
ap_opts = 0;
r = krb5_mk_req_extended(ap_opts, &ksum, krb5_kdc_default_options, 0,
0,
ccache, &creds, &authenticator, &auth);
/* don't let the key get freed if we clean up the authenticator */
authenticator.subkey = 0;
free(name);
krb5_free_host_realm(realms);
krb5_free_principal(server);
if (r) {
if (auth_debug_mode) {
printf("Kerberos V5: mk_req failed (%s)\r\n",
error_message(r));
}
return(0);
}
if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
if (auth_debug_mode)
printf("Not enough room for user name\r\n");
return(0);
}
if (!Data(ap, KRB_AUTH, auth.data, auth.length)) {
if (auth_debug_mode)
printf("Not enough room for authentication data\r\n");
return(0);
}
if (auth_debug_mode) {
printf("Sent Kerberos V5 credentials to server\r\n");
}
return(1);
}
void
kerberos5_is(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
int r;
struct hostent *hp;
char *p1, *p2;
static char *realm = NULL;
krb5_principal server;
krb5_ap_rep_enc_part reply;
krb5_data outbuf;
char *name;
char *getenv();
krb5_data inbuf;
if (cnt-- < 1)
return;
switch (*data++) {
case KRB_AUTH:
auth.data = (char *)data;
auth.length = cnt;
if (!(hp = gethostbyname(LocalHostName))) {
if (auth_debug_mode)
printf("Cannot resolve local host name\r\n");
Data(ap, KRB_REJECT, "Unknown local hostname.", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
if (!realm && (krb5_get_default_realm(&realm))) {
if (auth_debug_mode)
printf("Could not get default realm\r\n");
Data(ap, KRB_REJECT, "Could not get default realm.", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
if ((name = malloc(strlen(hp->h_name)+1)) == NULL) {
if (auth_debug_mode)
printf("Out of memory for hostname in Kerberos V5\r\n");
Data(ap, KRB_REJECT, "Out of memory.", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
p1 = hp->h_name;
p2 = name;
while (*p2 = *p1++) {
if (isupper(*p2))
*p2 |= 040;
++p2;
}
if (authdat)
krb5_free_tkt_authent(authdat);
r = krb5_build_principal_ext(&server,
strlen(realm), realm,
4, "host",
p2 - name, name,
0);
if (!r) {
r = krb5_rd_req_simple(&auth, server, 0, &authdat);
krb5_free_principal(server);
}
if (r) {
char errbuf[128];
errout:
authdat = 0;
(void) strcpy(errbuf, "Read req failed: ");
(void) strcat(errbuf, error_message(r));
Data(ap, KRB_REJECT, errbuf, -1);
if (auth_debug_mode)
printf("%s\r\n", errbuf);
return;
}
free(name);
if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
/* do ap_rep stuff here */
reply.ctime = authdat->authenticator->ctime;
reply.cusec = authdat->authenticator->cusec;
reply.subkey = 0; /* use the one he gave us, so don't
need to return one here */
reply.seq_number = 0; /* we don't do seq #'s. */
if (r = krb5_mk_rep(&reply,
authdat->authenticator->subkey ?
authdat->authenticator->subkey :
authdat->ticket->enc_part2->session,
&outbuf)) {
goto errout;
}
Data(ap, KRB_RESPONSE, outbuf.data, outbuf.length);
}
if (krb5_unparse_name(authdat->ticket->enc_part2 ->client,
&name))
name = 0;
Data(ap, KRB_ACCEPT, name, name ? -1 : 0);
if (auth_debug_mode) {
printf("Kerberos5 identifies him as ``%s''\r\n",
name ? name : "");
}
auth_finished(ap, AUTH_USER);
free(name);
if (authdat->authenticator->subkey &&
authdat->authenticator->subkey->keytype == KEYTYPE_DES) {
memmove((Voidptr )session_key,
(Voidptr )authdat->authenticator->subkey->contents,
sizeof(Block));
} else if (authdat->ticket->enc_part2->session->keytype ==
KEYTYPE_DES) {
memmove((Voidptr )session_key,
(Voidptr )authdat->ticket->enc_part2->session->contents,
sizeof(Block));
} else
break;
break;
#ifdef FORWARD
case KRB_FORWARD:
inbuf.data = (char *)data;
inbuf.length = cnt;
if (r = rd_and_store_for_creds(&inbuf, authdat->ticket,
UserNameRequested)) {
char errbuf[128];
(void) strcpy(errbuf, "Read forwarded creds failed: ");
(void) strcat(errbuf, error_message(r));
Data(ap, KRB_FORWARD_REJECT, errbuf, -1);
if (auth_debug_mode)
printf("Could not read forwarded credentials\r\n");
}
else
Data(ap, KRB_FORWARD_ACCEPT, 0, 0);
if (auth_debug_mode)
printf("Forwarded credentials obtained\r\n");
break;
#endif /* FORWARD */
default:
if (auth_debug_mode)
printf("Unknown Kerberos option %d\r\n", data[-1]);
Data(ap, KRB_REJECT, 0, 0);
break;
}
}
void
kerberos5_reply(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
Session_Key skey;
static int mutual_complete = 0;
if (cnt-- < 1)
return;
switch (*data++) {
case KRB_REJECT:
if (cnt > 0) {
printf("[ Kerberos V5 refuses authentication because %.*s ]\r\n",
cnt, data);
} else
printf("[ Kerberos V5 refuses authentication ]\r\n");
auth_send_retry();
return;
case KRB_ACCEPT:
if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL &&
!mutual_complete) {
printf("[ Kerberos V5 accepted you, but didn't provide mutual authentication! ]\n");
auth_send_retry();
return;
}
if (cnt)
printf("[ Kerberos V5 accepts you as ``%.*s'' ]\n", cnt, data);
else
printf("[ Kerberos V5 accepts you ]\n");
auth_finished(ap, AUTH_USER);
#ifdef FORWARD
if (forward_flags & OPTS_FORWARD_CREDS)
kerberos5_forward(ap);
#endif /* FORWARD */
break;
case KRB_RESPONSE:
if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
/* the rest of the reply should contain a krb_ap_rep */
krb5_ap_rep_enc_part *reply;
krb5_data inbuf;
krb5_error_code r;
krb5_keyblock tmpkey;
inbuf.length = cnt;
inbuf.data = (char *)data;
tmpkey.keytype = KEYTYPE_DES;
tmpkey.contents = session_key;
tmpkey.length = sizeof(Block);
if (r = krb5_rd_rep(&inbuf, &tmpkey, &reply)) {
printf("[ Mutual authentication failed: %s ]\n",
error_message(r));
auth_send_retry();
return;
}
if (reply->ctime != authenticator.ctime ||
reply->cusec != authenticator.cusec) {
printf("[ Mutual authentication failed (mismatched KRB_AP_REP) ]\n");
auth_send_retry();
return;
}
krb5_free_ap_rep_enc_part(reply);
mutual_complete = 1;
}
return;
#ifdef FORWARD
case KRB_FORWARD_ACCEPT:
printf("[ Kerberos V5 accepted forwarded credentials ]\n");
return;
case KRB_FORWARD_REJECT:
printf("[ Kerberos V5 refuses forwarded credentials because %.*s ]\r\n",
cnt, data);
return;
#endif /* FORWARD */
default:
if (auth_debug_mode)
printf("Unknown Kerberos option %d\r\n", data[-1]);
return;
}
}
int
kerberos5_status(ap, name, level)
Authenticator *ap;
char *name;
int level;
{
if (level < AUTH_USER)
return(level);
if (UserNameRequested &&
krb5_kuserok(authdat->ticket->enc_part2->client, UserNameRequested))
{
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
kerberos5_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 KRB_REJECT: /* Rejected (reason might follow) */
strncpy((char *)buf, " REJECT ", buflen);
goto common;
case KRB_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 KRB_AUTH: /* Authentication data follows */
strncpy((char *)buf, " AUTH", buflen);
goto common2;
case KRB_RESPONSE:
strncpy((char *)buf, " RESPONSE", buflen);
goto common2;
#ifdef FORWARD
case KRB_FORWARD: /* Forwarded credentials follow */
strncpy((char *)buf, " FORWARD", buflen);
goto common2;
case KRB_FORWARD_ACCEPT: /* Forwarded credentials accepted */
strncpy((char *)buf, " FORWARD_ACCEPT", buflen);
goto common2;
case KRB_FORWARD_REJECT: /* Forwarded credentials rejected */
/* (reason might follow) */
strncpy((char *)buf, " FORWARD_REJECT", buflen);
goto common2;
#endif /* FORWARD */
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;
}
}
#ifdef FORWARD
void
kerberos5_forward(ap)
Authenticator *ap;
{
struct hostent *hp;
krb5_creds *local_creds;
krb5_error_code r;
krb5_data forw_creds;
extern krb5_cksumtype krb5_kdc_req_sumtype;
krb5_ccache ccache;
int i;
if (!(local_creds = (krb5_creds *)
calloc(1, sizeof(*local_creds)))) {
if (auth_debug_mode)
printf("Kerberos V5: could not allocate memory for credentials\r\n");
return;
}
if (r = krb5_sname_to_principal(RemoteHostName, "host", 1,
&local_creds->server)) {
if (auth_debug_mode)
printf("Kerberos V5: could not build server name - %s\r\n",
error_message(r));
krb5_free_creds(local_creds);
return;
}
if (r = krb5_cc_default(&ccache)) {
if (auth_debug_mode)
printf("Kerberos V5: could not get default ccache - %s\r\n",
error_message(r));
krb5_free_creds(local_creds);
return;
}
if (r = krb5_cc_get_principal(ccache, &local_creds->client)) {
if (auth_debug_mode)
printf("Kerberos V5: could not get default principal - %s\r\n",
error_message(r));
krb5_free_creds(local_creds);
return;
}
/* Get ticket from credentials cache */
if (r = krb5_get_credentials(KRB5_GC_CACHED, ccache, local_creds)) {
if (auth_debug_mode)
printf("Kerberos V5: could not obtain credentials - %s\r\n",
error_message(r));
krb5_free_creds(local_creds);
return;
}
if (r = get_for_creds(ETYPE_DES_CBC_CRC,
krb5_kdc_req_sumtype,
RemoteHostName,
local_creds->client,
&local_creds->keyblock,
forward_flags & OPTS_FORWARDABLE_CREDS,
&forw_creds)) {
if (auth_debug_mode)
printf("Kerberos V5: error getting forwarded creds - %s\r\n",
error_message(r));
krb5_free_creds(local_creds);
return;
}
/* Send forwarded credentials */
if (!Data(ap, KRB_FORWARD, forw_creds.data, forw_creds.length)) {
if (auth_debug_mode)
printf("Not enough room for authentication data\r\n");
}
else {
if (auth_debug_mode)
printf("Forwarded local Kerberos V5 credentials to server\r\n");
}
krb5_free_creds(local_creds);
}
#endif /* FORWARD */
#endif /* KRB5 */

443
appl/telnet/libtelnet/krb4encpwd.c Normal file
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/*-
* 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 };
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

94
appl/telnet/libtelnet/misc.c Normal file
View File

@@ -0,0 +1,94 @@
/*-
* Copyright (c) 1991, 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[] = "@(#)misc.c 8.1 (Berkeley) 6/4/93";
#endif /* not lint */
#include "misc.h"
char *RemoteHostName;
char *LocalHostName;
char *UserNameRequested = 0;
int ConnectedCount = 0;
void
auth_encrypt_init(local, remote, name, server)
char *local;
char *remote;
char *name;
int server;
{
RemoteHostName = remote;
LocalHostName = local;
#if defined(AUTHENTICATION)
auth_init(name, server);
#endif
#if defined(ENCRYPTION)
encrypt_init(name, server);
#endif
if (UserNameRequested) {
free(UserNameRequested);
UserNameRequested = 0;
}
}
void
auth_encrypt_user(name)
char *name;
{
extern char *strdup();
if (UserNameRequested)
free(UserNameRequested);
UserNameRequested = name ? strdup(name) : 0;
}
void
auth_encrypt_connect(cnt)
int cnt;
{
}
void
printd(data, cnt)
unsigned char *data;
int cnt;
{
if (cnt > 16)
cnt = 16;
while (cnt-- > 0) {
printf(" %02x", *data);
++data;
}
}

145
appl/telnet/libtelnet/read_password.c Normal file
View File

@@ -0,0 +1,145 @@
/*-
* 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[] = "@(#)read_password.c 8.3 (Berkeley) 5/30/95";
#endif /* not lint */
/*
* $Source$
* $Author$
*
* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
* of Technology.
*
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*
* This routine prints the supplied string to standard
* output as a prompt, and reads a password string without
* echoing.
*/
#if defined(RSA_ENCPWD) || defined(KRB4_ENCPWD)
#include <stdio.h>
#include <strings.h>
#include <sys/ioctl.h>
#include <signal.h>
#include <setjmp.h>
static jmp_buf env;
/*** Routines ****************************************************** */
/*
* This version just returns the string, doesn't map to key.
*
* Returns 0 on success, non-zero on failure.
*/
int
local_des_read_pw_string(s,max,prompt,verify)
char *s;
int max;
char *prompt;
int verify;
{
int ok = 0;
char *ptr;
jmp_buf old_env;
struct sgttyb tty_state;
char key_string[BUFSIZ];
if (max > BUFSIZ) {
return -1;
}
/* XXX assume jmp_buf is typedef'ed to an array */
memmove((char *)env, (char *)old_env, sizeof(env));
if (setjmp(env))
goto lose;
/* save terminal state*/
if (ioctl(0,TIOCGETP,(char *)&tty_state) == -1)
return -1;
/*
push_signals();
*/
/* Turn off echo */
tty_state.sg_flags &= ~ECHO;
if (ioctl(0,TIOCSETP,(char *)&tty_state) == -1)
return -1;
while (!ok) {
(void) printf(prompt);
(void) fflush(stdout);
while (!fgets(s, max, stdin));
if ((ptr = strchr(s, '\n')))
*ptr = '\0';
if (verify) {
printf("\nVerifying, please re-enter %s",prompt);
(void) fflush(stdout);
if (!fgets(key_string, sizeof(key_string), stdin)) {
clearerr(stdin);
continue;
}
if ((ptr = strchr(key_string, '\n')))
*ptr = '\0';
if (strcmp(s,key_string)) {
printf("\n\07\07Mismatch - try again\n");
(void) fflush(stdout);
continue;
}
}
ok = 1;
}
lose:
if (!ok)
memset(s, 0, max);
printf("\n");
/* turn echo back on */
tty_state.sg_flags |= ECHO;
if (ioctl(0,TIOCSETP,(char *)&tty_state))
ok = 0;
/*
pop_signals();
*/
memmove((char *)old_env, (char *)env, sizeof(env));
if (verify)
memset(key_string, 0, sizeof (key_string));
s[max-1] = 0; /* force termination */
return !ok; /* return nonzero if not okay */
}
#endif /* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */

492
appl/telnet/libtelnet/rsaencpwd.c Normal file
View File

@@ -0,0 +1,492 @@
/*-
* 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[] = "@(#)rsaencpwd.c 8.3 (Berkeley) 5/30/95";
#endif /* not lint */
#ifdef RSA_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>
#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"
#include "cdc.h"
extern auth_debug_mode;
static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
AUTHTYPE_RSA_ENCPWD, };
static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION,
TELQUAL_NAME, };
#define RSA_ENCPWD_AUTH 0 /* Authentication data follows */
#define RSA_ENCPWD_REJECT 1 /* Rejected (reason might follow) */
#define RSA_ENCPWD_ACCEPT 2 /* Accepted */
#define RSA_ENCPWD_CHALLENGEKEY 3 /* Challenge and public key */
#define NAME_SZ 40
#define CHAL_SZ 20
#define PWD_SZ 40
static KTEXT_ST auth;
static char name[NAME_SZ];
static char user_passwd[PWD_SZ];
static char key_file[2*NAME_SZ];
static char lhostname[NAME_SZ];
static char challenge[CHAL_SZ];
static int challenge_len;
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;
if (type != NULL) *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
rsaencpwd_init(ap, server)
Authenticator *ap;
int server;
{
char *cp;
FILE *fp;
if (server) {
str_data[3] = TELQUAL_REPLY;
memset(key_file, 0, sizeof(key_file));
gethostname(lhostname, sizeof(lhostname));
if ((cp = strchr(lhostname, '.')) != 0) *cp = '\0';
strcpy(key_file, "/etc/.");
strcat(key_file, lhostname);
strcat(key_file, "_privkey");
if ((fp=fopen(key_file, "r"))==NULL) return(0);
fclose(fp);
} else {
str_data[3] = TELQUAL_IS;
}
return(1);
}
int
rsaencpwd_send(ap)
Authenticator *ap;
{
printf("[ Trying RSAENCPWD ... ]\n");
if (!UserNameRequested) {
return(0);
}
if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
return(0);
}
if (!Data(ap, NULL, (void *)NULL, 0)) {
return(0);
}
return(1);
}
void
rsaencpwd_is(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
Session_Key skey;
Block datablock;
char r_passwd[PWD_SZ], r_user[NAME_SZ];
char *cp, key[160];
char chalkey[160], *ptr;
FILE *fp;
int r, i, j, chalkey_len, len;
time_t now;
cnt--;
switch (*data++) {
case RSA_ENCPWD_AUTH:
memmove((void *)auth.dat, (void *)data, auth.length = cnt);
if ((fp=fopen(key_file, "r"))==NULL) {
Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
/*
* get privkey
*/
fscanf(fp, "%x;", &len);
for (i=0;i<len;i++) {
j = getc(fp); key[i]=j;
}
fclose(fp);
r = accept_rsa_encpwd(&auth, key, challenge,
challenge_len, r_passwd);
if (r < 0) {
Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
auth_encrypt_userpwd(r_passwd);
if (rsaencpwd_passwdok(UserNameRequested, UserPassword) == 0) {
/*
* illegal username and password
*/
Data(ap, RSA_ENCPWD_REJECT, (void *)"Illegal password", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
Data(ap, RSA_ENCPWD_ACCEPT, (void *)0, 0);
auth_finished(ap, AUTH_USER);
break;
case IAC:
/*
* 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_ONE_WAY) {
register int i;
time(&now);
if ((now % 2) == 0) {
sprintf(challenge, "%x", now);
challenge_len = strlen(challenge);
} else {
strcpy(challenge, "randchal");
challenge_len = 8;
}
if ((fp=fopen(key_file, "r"))==NULL) {
Data(ap, RSA_ENCPWD_REJECT, (void *)"Auth failed", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
/*
* skip privkey
*/
fscanf(fp, "%x;", &len);
for (i=0;i<len;i++) {
j = getc(fp);
}
/*
* get pubkey
*/
fscanf(fp, "%x;", &len);
for (i=0;i<len;i++) {
j = getc(fp); key[i]=j;
}
fclose(fp);
chalkey[0] = 0x30;
ptr = (char *) &chalkey[1];
chalkey_len = 1+NumEncodeLengthOctets(i)+i+1+NumEncodeLengthOctets(challenge_len)+challenge_len;
EncodeLength(ptr, chalkey_len);
ptr +=NumEncodeLengthOctets(chalkey_len);
*ptr++ = 0x04; /* OCTET STRING */
*ptr++ = challenge_len;
memmove(ptr, challenge, challenge_len);
ptr += challenge_len;
*ptr++ = 0x04; /* OCTET STRING */
EncodeLength(ptr, i);
ptr += NumEncodeLengthOctets(i);
memmove(ptr, key, i);
chalkey_len = 1+NumEncodeLengthOctets(chalkey_len)+chalkey_len;
Data(ap, RSA_ENCPWD_CHALLENGEKEY, (void *)chalkey, chalkey_len);
}
break;
default:
Data(ap, RSA_ENCPWD_REJECT, 0, 0);
break;
}
}
void
rsaencpwd_reply(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
Session_Key skey;
KTEXT_ST token;
Block enckey;
int r, pubkey_len;
char randchal[CHAL_SZ], *cp;
char chalkey[160], pubkey[128], *ptr;
if (cnt-- < 1)
return;
switch (*data++) {
case RSA_ENCPWD_REJECT:
if (cnt > 0) {
printf("[ RSA_ENCPWD refuses authentication because %.*s ]\r\n",
cnt, data);
} else
printf("[ RSA_ENCPWD refuses authentication ]\r\n");
auth_send_retry();
return;
case RSA_ENCPWD_ACCEPT:
printf("[ RSA_ENCPWD accepts you ]\n");
auth_finished(ap, AUTH_USER);
return;
case RSA_ENCPWD_CHALLENGEKEY:
/*
* Verify that the response to the challenge is correct.
*/
memmove((void *)chalkey, (void *)data, cnt);
ptr = (char *) &chalkey[0];
ptr += DecodeHeaderLength(chalkey);
if (*ptr != 0x04) {
return;
}
*ptr++;
challenge_len = DecodeValueLength(ptr);
ptr += NumEncodeLengthOctets(challenge_len);
memmove(challenge, ptr, challenge_len);
ptr += challenge_len;
if (*ptr != 0x04) {
return;
}
*ptr++;
pubkey_len = DecodeValueLength(ptr);
ptr += NumEncodeLengthOctets(pubkey_len);
memmove(pubkey, ptr, pubkey_len);
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;
r = init_rsa_encpwd(&token, user_passwd, challenge, challenge_len, pubkey);
if (r < 0) {
token.length = 1;
}
if (!Data(ap, RSA_ENCPWD_AUTH, (void *)token.dat, token.length)) {
return;
}
break;
default:
return;
}
}
int
rsaencpwd_status(ap, name, level)
Authenticator *ap;
char *name;
int level;
{
if (level < AUTH_USER)
return(level);
if (UserNameRequested && rsaencpwd_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
rsaencpwd_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 RSA_ENCPWD_REJECT: /* Rejected (reason might follow) */
strncpy((char *)buf, " REJECT ", buflen);
goto common;
case RSA_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 RSA_ENCPWD_AUTH: /* Authentication data follows */
strncpy((char *)buf, " AUTH", buflen);
goto common2;
case RSA_ENCPWD_CHALLENGEKEY:
strncpy((char *)buf, " CHALLENGEKEY", 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 rsaencpwd_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

585
appl/telnet/libtelnet/spx.c Normal file
View File

@@ -0,0 +1,585 @@
/*-
* 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[] = "@(#)spx.c 8.2 (Berkeley) 5/30/95";
#endif /* not lint */
#ifdef SPX
/*
* 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 <stdio.h>
#include "gssapi_defs.h"
#ifdef __STDC__
#include <stdlib.h>
#endif
#ifdef NO_STRING_H
#include <strings.h>
#else
#include <string.h>
#endif
#include <pwd.h>
#include "encrypt.h"
#include "auth.h"
#include "misc.h"
extern auth_debug_mode;
static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
AUTHTYPE_SPX, };
static unsigned char str_name[1024] = { IAC, SB, TELOPT_AUTHENTICATION,
TELQUAL_NAME, };
#define SPX_AUTH 0 /* Authentication data follows */
#define SPX_REJECT 1 /* Rejected (reason might follow) */
#define SPX_ACCEPT 2 /* Accepted */
static Schedule sched;
static Block challenge = { 0 };
/*******************************************************************/
gss_OID_set actual_mechs;
gss_OID actual_mech_type, output_name_type;
int major_status, status, msg_ctx = 0, new_status;
int req_flags = 0, ret_flags, lifetime_rec;
gss_cred_id_t gss_cred_handle;
gss_ctx_id_t actual_ctxhandle, context_handle;
gss_buffer_desc output_token, input_token, input_name_buffer;
gss_buffer_desc status_string;
gss_name_t desired_targname, src_name;
gss_channel_bindings input_chan_bindings;
char lhostname[GSS_C_MAX_PRINTABLE_NAME];
char targ_printable[GSS_C_MAX_PRINTABLE_NAME];
int to_addr=0, from_addr=0;
char *address;
gss_buffer_desc fullname_buffer;
gss_OID fullname_type;
gss_cred_id_t gss_delegated_cred_handle;
/*******************************************************************/
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
spx_init(ap, server)
Authenticator *ap;
int server;
{
gss_cred_id_t tmp_cred_handle;
if (server) {
str_data[3] = TELQUAL_REPLY;
gethostname(lhostname, sizeof(lhostname));
strcpy(targ_printable, "SERVICE:rcmd@");
strcat(targ_printable, lhostname);
input_name_buffer.length = strlen(targ_printable);
input_name_buffer.value = targ_printable;
major_status = gss_import_name(&status,
&input_name_buffer,
GSS_C_NULL_OID,
&desired_targname);
major_status = gss_acquire_cred(&status,
desired_targname,
0,
GSS_C_NULL_OID_SET,
GSS_C_ACCEPT,
&tmp_cred_handle,
&actual_mechs,
&lifetime_rec);
if (major_status != GSS_S_COMPLETE) return(0);
} else {
str_data[3] = TELQUAL_IS;
}
return(1);
}
int
spx_send(ap)
Authenticator *ap;
{
Block enckey;
int r;
gss_OID actual_mech_type, output_name_type;
int msg_ctx = 0, new_status, status;
int req_flags = 0, ret_flags, lifetime_rec, major_status;
gss_buffer_desc output_token, input_token, input_name_buffer;
gss_buffer_desc output_name_buffer, status_string;
gss_name_t desired_targname;
gss_channel_bindings input_chan_bindings;
char targ_printable[GSS_C_MAX_PRINTABLE_NAME];
int from_addr=0, to_addr=0, myhostlen, j;
int deleg_flag=1, mutual_flag=0, replay_flag=0, seq_flag=0;
char *address;
printf("[ Trying SPX ... ]\n");
strcpy(targ_printable, "SERVICE:rcmd@");
strcat(targ_printable, RemoteHostName);
input_name_buffer.length = strlen(targ_printable);
input_name_buffer.value = targ_printable;
if (!UserNameRequested) {
return(0);
}
major_status = gss_import_name(&status,
&input_name_buffer,
GSS_C_NULL_OID,
&desired_targname);
major_status = gss_display_name(&status,
desired_targname,
&output_name_buffer,
&output_name_type);
printf("target is '%s'\n", output_name_buffer.value); fflush(stdout);
major_status = gss_release_buffer(&status, &output_name_buffer);
input_chan_bindings = (gss_channel_bindings)
malloc(sizeof(gss_channel_bindings_desc));
input_chan_bindings->initiator_addrtype = GSS_C_AF_INET;
input_chan_bindings->initiator_address.length = 4;
address = (char *) malloc(4);
input_chan_bindings->initiator_address.value = (char *) address;
address[0] = ((from_addr & 0xff000000) >> 24);
address[1] = ((from_addr & 0xff0000) >> 16);
address[2] = ((from_addr & 0xff00) >> 8);
address[3] = (from_addr & 0xff);
input_chan_bindings->acceptor_addrtype = GSS_C_AF_INET;
input_chan_bindings->acceptor_address.length = 4;
address = (char *) malloc(4);
input_chan_bindings->acceptor_address.value = (char *) address;
address[0] = ((to_addr & 0xff000000) >> 24);
address[1] = ((to_addr & 0xff0000) >> 16);
address[2] = ((to_addr & 0xff00) >> 8);
address[3] = (to_addr & 0xff);
input_chan_bindings->application_data.length = 0;
req_flags = 0;
if (deleg_flag) req_flags = req_flags | 1;
if (mutual_flag) req_flags = req_flags | 2;
if (replay_flag) req_flags = req_flags | 4;
if (seq_flag) req_flags = req_flags | 8;
major_status = gss_init_sec_context(&status, /* minor status */
GSS_C_NO_CREDENTIAL, /* cred handle */
&actual_ctxhandle, /* ctx handle */
desired_targname, /* target name */
GSS_C_NULL_OID, /* mech type */
req_flags, /* req flags */
0, /* time req */
input_chan_bindings, /* chan binding */
GSS_C_NO_BUFFER, /* input token */
&actual_mech_type, /* actual mech */
&output_token, /* output token */
&ret_flags, /* ret flags */
&lifetime_rec); /* time rec */
if ((major_status != GSS_S_COMPLETE) &&
(major_status != GSS_S_CONTINUE_NEEDED)) {
gss_display_status(&new_status,
status,
GSS_C_MECH_CODE,
GSS_C_NULL_OID,
&msg_ctx,
&status_string);
printf("%s\n", status_string.value);
return(0);
}
if (!auth_sendname(UserNameRequested, strlen(UserNameRequested))) {
return(0);
}
if (!Data(ap, SPX_AUTH, (void *)output_token.value, output_token.length)) {
return(0);
}
return(1);
}
void
spx_is(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
Session_Key skey;
Block datablock;
int r;
if (cnt-- < 1)
return;
switch (*data++) {
case SPX_AUTH:
input_token.length = cnt;
input_token.value = (char *) data;
gethostname(lhostname, sizeof(lhostname));
strcpy(targ_printable, "SERVICE:rcmd@");
strcat(targ_printable, lhostname);
input_name_buffer.length = strlen(targ_printable);
input_name_buffer.value = targ_printable;
major_status = gss_import_name(&status,
&input_name_buffer,
GSS_C_NULL_OID,
&desired_targname);
major_status = gss_acquire_cred(&status,
desired_targname,
0,
GSS_C_NULL_OID_SET,
GSS_C_ACCEPT,
&gss_cred_handle,
&actual_mechs,
&lifetime_rec);
major_status = gss_release_name(&status, desired_targname);
input_chan_bindings = (gss_channel_bindings)
malloc(sizeof(gss_channel_bindings_desc));
input_chan_bindings->initiator_addrtype = GSS_C_AF_INET;
input_chan_bindings->initiator_address.length = 4;
address = (char *) malloc(4);
input_chan_bindings->initiator_address.value = (char *) address;
address[0] = ((from_addr & 0xff000000) >> 24);
address[1] = ((from_addr & 0xff0000) >> 16);
address[2] = ((from_addr & 0xff00) >> 8);
address[3] = (from_addr & 0xff);
input_chan_bindings->acceptor_addrtype = GSS_C_AF_INET;
input_chan_bindings->acceptor_address.length = 4;
address = (char *) malloc(4);
input_chan_bindings->acceptor_address.value = (char *) address;
address[0] = ((to_addr & 0xff000000) >> 24);
address[1] = ((to_addr & 0xff0000) >> 16);
address[2] = ((to_addr & 0xff00) >> 8);
address[3] = (to_addr & 0xff);
input_chan_bindings->application_data.length = 0;
major_status = gss_accept_sec_context(&status,
&context_handle,
gss_cred_handle,
&input_token,
input_chan_bindings,
&src_name,
&actual_mech_type,
&output_token,
&ret_flags,
&lifetime_rec,
&gss_delegated_cred_handle);
if (major_status != GSS_S_COMPLETE) {
major_status = gss_display_name(&status,
src_name,
&fullname_buffer,
&fullname_type);
Data(ap, SPX_REJECT, (void *)"auth failed", -1);
auth_finished(ap, AUTH_REJECT);
return;
}
major_status = gss_display_name(&status,
src_name,
&fullname_buffer,
&fullname_type);
Data(ap, SPX_ACCEPT, (void *)output_token.value, output_token.length);
auth_finished(ap, AUTH_USER);
break;
default:
Data(ap, SPX_REJECT, 0, 0);
break;
}
}
void
spx_reply(ap, data, cnt)
Authenticator *ap;
unsigned char *data;
int cnt;
{
Session_Key skey;
if (cnt-- < 1)
return;
switch (*data++) {
case SPX_REJECT:
if (cnt > 0) {
printf("[ SPX refuses authentication because %.*s ]\r\n",
cnt, data);
} else
printf("[ SPX refuses authentication ]\r\n");
auth_send_retry();
return;
case SPX_ACCEPT:
printf("[ SPX accepts you ]\n");
if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
/*
* Send over the encrypted challenge.
*/
input_token.value = (char *) data;
input_token.length = cnt;
major_status = gss_init_sec_context(&status, /* minor stat */
GSS_C_NO_CREDENTIAL, /* cred handle */
&actual_ctxhandle, /* ctx handle */
desired_targname, /* target name */
GSS_C_NULL_OID, /* mech type */
req_flags, /* req flags */
0, /* time req */
input_chan_bindings, /* chan binding */
&input_token, /* input token */
&actual_mech_type, /* actual mech */
&output_token, /* output token */
&ret_flags, /* ret flags */
&lifetime_rec); /* time rec */
if (major_status != GSS_S_COMPLETE) {
gss_display_status(&new_status,
status,
GSS_C_MECH_CODE,
GSS_C_NULL_OID,
&msg_ctx,
&status_string);
printf("[ SPX mutual response fails ... '%s' ]\r\n",
status_string.value);
auth_send_retry();
return;
}
}
auth_finished(ap, AUTH_USER);
return;
default:
return;
}
}
int
spx_status(ap, name, level)
Authenticator *ap;
char *name;
int level;
{
gss_buffer_desc fullname_buffer, acl_file_buffer;
gss_OID fullname_type;
char acl_file[160], fullname[160];
int major_status, status = 0;
struct passwd *pwd;
/*
* hard code fullname to
* "SPX:/C=US/O=Digital/OU=LKG/OU=Sphinx/OU=Users/CN=Kannan Alagappan"
* and acl_file to "~kannan/.sphinx"
*/
pwd = getpwnam(UserNameRequested);
if (pwd == NULL) {
return(AUTH_USER); /* not authenticated */
}
strcpy(acl_file, pwd->pw_dir);
strcat(acl_file, "/.sphinx");
acl_file_buffer.value = acl_file;
acl_file_buffer.length = strlen(acl_file);
major_status = gss_display_name(&status,
src_name,
&fullname_buffer,
&fullname_type);
if (level < AUTH_USER)
return(level);
major_status = gss__check_acl(&status, &fullname_buffer,
&acl_file_buffer);
if (major_status == GSS_S_COMPLETE) {
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
spx_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 SPX_REJECT: /* Rejected (reason might follow) */
strncpy((char *)buf, " REJECT ", buflen);
goto common;
case SPX_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 SPX_AUTH: /* Authentication data follows */
strncpy((char *)buf, " AUTH", 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;
}
}
#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