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authorGeoff Rehmet <csgr@FreeBSD.org>1994-08-12 22:03:01 +0000
committerGeoff Rehmet <csgr@FreeBSD.org>1994-08-12 22:03:01 +0000
commit040d596f3e1a10957cd05448d8e75d54c9030391 (patch)
tree629ebb81a8575f3feeb9979634c010bbe06ceb11
parentf09e7cba423becc6d9ba797d393d89c76e634883 (diff)
downloadsrc-040d596f3e1a10957cd05448d8e75d54c9030391.tar.gz
src-040d596f3e1a10957cd05448d8e75d54c9030391.zip
Libtelnet with encryption goes walkies to src/secure/lib
Reviewed by: Geoff Rehmet
Notes
Notes: svn path=/vendor-crypto/eBones/dist/; revision=2047
-rw-r--r--eBones/lib/libtelnet/Makefile33
-rw-r--r--eBones/lib/libtelnet/auth-proto.h96
-rw-r--r--eBones/lib/libtelnet/auth.c658
-rw-r--r--eBones/lib/libtelnet/auth.h87
-rw-r--r--eBones/lib/libtelnet/enc-proto.h125
-rw-r--r--eBones/lib/libtelnet/enc_des.c724
-rw-r--r--eBones/lib/libtelnet/encrypt.c999
-rw-r--r--eBones/lib/libtelnet/encrypt.h108
-rw-r--r--eBones/lib/libtelnet/genget.c105
-rw-r--r--eBones/lib/libtelnet/getent.c68
-rw-r--r--eBones/lib/libtelnet/kerberos.c554
-rw-r--r--eBones/lib/libtelnet/kerberos5.c762
-rw-r--r--eBones/lib/libtelnet/key-proto.h71
-rw-r--r--eBones/lib/libtelnet/krb4encpwd.c446
-rw-r--r--eBones/lib/libtelnet/misc-proto.h79
-rw-r--r--eBones/lib/libtelnet/misc.c94
-rw-r--r--eBones/lib/libtelnet/misc.h42
-rw-r--r--eBones/lib/libtelnet/read_password.c145
-rw-r--r--eBones/lib/libtelnet/rsaencpwd.c492
-rw-r--r--eBones/lib/libtelnet/spx.c588
-rw-r--r--secure/lib/libtelnet/Makefile33
-rw-r--r--secure/lib/libtelnet/auth-proto.h96
-rw-r--r--secure/lib/libtelnet/auth.c658
-rw-r--r--secure/lib/libtelnet/auth.h87
-rw-r--r--secure/lib/libtelnet/enc-proto.h125
-rw-r--r--secure/lib/libtelnet/enc_des.c724
-rw-r--r--secure/lib/libtelnet/encrypt.c999
-rw-r--r--secure/lib/libtelnet/encrypt.h108
-rw-r--r--secure/lib/libtelnet/genget.c105
-rw-r--r--secure/lib/libtelnet/getent.c68
-rw-r--r--secure/lib/libtelnet/kerberos.c554
-rw-r--r--secure/lib/libtelnet/kerberos5.c762
-rw-r--r--secure/lib/libtelnet/key-proto.h71
-rw-r--r--secure/lib/libtelnet/krb4encpwd.c446
-rw-r--r--secure/lib/libtelnet/misc-proto.h79
-rw-r--r--secure/lib/libtelnet/misc.c94
-rw-r--r--secure/lib/libtelnet/misc.h42
-rw-r--r--secure/lib/libtelnet/read_password.c145
-rw-r--r--secure/lib/libtelnet/rsaencpwd.c492
-rw-r--r--secure/lib/libtelnet/spx.c588
40 files changed, 12552 insertions, 0 deletions
diff --git a/eBones/lib/libtelnet/Makefile b/eBones/lib/libtelnet/Makefile
new file mode 100644
index 000000000000..90a0be8773ce
--- /dev/null
+++ b/eBones/lib/libtelnet/Makefile
@@ -0,0 +1,33 @@
+# From: @(#)Makefile 8.2 (Berkeley) 12/15/93
+# $Id: Makefile,v 1.2 1994/08/05 02:02:36 wollman Exp $
+
+LIB= telnet
+SRCS= auth.c encrypt.c genget.c getent.c misc.c
+SRCS+= kerberos.c enc_des.c
+#SRCS+= kerberos5.c
+CFLAGS+= -DHAS_CGETENT
+
+# These are the sources that have encryption stuff in them.
+CRYPT_SRC= auth.c enc-proto.h enc_des.c encrypt.c
+CRYPT_SRC+= encrypt.h kerberos.c kerberos5.c krb4encpwd.c
+CRYPT_SRC+= misc.c spx.c Makefile
+NOCRYPT_DIR=${.CURDIR}/Nocrypt
+
+.include <bsd.lib.mk>
+
+nocrypt:
+#ifdef ENCRYPTION
+ @for i in ${CRYPT_SRC}; do \
+ if [ ! -d ${NOCRYPT_DIR} ]; then \
+ echo Creating subdirectory ${NOCRYPT_DIR}; \
+ mkdir ${NOCRYPT_DIR}; \
+ fi; \
+ echo ${NOCRYPT_DIR}/$$i; \
+ unifdef -UENCRYPTION ${.CURDIR}/$$i | \
+ sed "s/ || defined(ENCRYPTION)//" > ${NOCRYPT_DIR}/$$i; \
+ done
+
+placeholder:
+#else /* ENCRYPTION */
+ @echo "Encryption code already removed."
+#endif /* ENCRYPTION */
diff --git a/eBones/lib/libtelnet/auth-proto.h b/eBones/lib/libtelnet/auth-proto.h
new file mode 100644
index 000000000000..06bba2b55c1d
--- /dev/null
+++ b/eBones/lib/libtelnet/auth-proto.h
@@ -0,0 +1,96 @@
+/*-
+ * 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.
+ *
+ * @(#)auth-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+#if defined(AUTHENTICATION)
+Authenticator *findauthenticator P((int, int));
+
+void auth_init P((char *, int));
+int auth_cmd P((int, char **));
+void auth_request P((void));
+void auth_send P((unsigned char *, int));
+void auth_send_retry P((void));
+void auth_is P((unsigned char *, int));
+void auth_reply P((unsigned char *, int));
+void auth_finished P((Authenticator *, int));
+int auth_wait P((char *));
+void auth_disable_name P((char *));
+void auth_gen_printsub P((unsigned char *, int, unsigned char *, int));
+
+#ifdef KRB4
+int kerberos4_init P((Authenticator *, int));
+int kerberos4_send P((Authenticator *));
+void kerberos4_is P((Authenticator *, unsigned char *, int));
+void kerberos4_reply P((Authenticator *, unsigned char *, int));
+int kerberos4_status P((Authenticator *, char *, int));
+void kerberos4_printsub P((unsigned char *, int, unsigned char *, int));
+#endif
+
+#ifdef KRB5
+int kerberos5_init P((Authenticator *, int));
+int kerberos5_send P((Authenticator *));
+void kerberos5_is P((Authenticator *, unsigned char *, int));
+void kerberos5_reply P((Authenticator *, unsigned char *, int));
+int kerberos5_status P((Authenticator *, char *, int));
+void kerberos5_printsub P((unsigned char *, int, unsigned char *, int));
+#endif
+#endif
diff --git a/eBones/lib/libtelnet/auth.c b/eBones/lib/libtelnet/auth.c
new file mode 100644
index 000000000000..1eb198a895e9
--- /dev/null
+++ b/eBones/lib/libtelnet/auth.c
@@ -0,0 +1,658 @@
+/*-
+ * 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[] = "@(#)auth.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+
+#if defined(AUTHENTICATION)
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+#define AUTH_NAMES
+#include <arpa/telnet.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-proto.h"
+#include "auth-proto.h"
+
+#define typemask(x) (1<<((x)-1))
+
+#ifdef KRB4_ENCPWD
+extern krb4encpwd_init();
+extern krb4encpwd_send();
+extern krb4encpwd_is();
+extern krb4encpwd_reply();
+extern krb4encpwd_status();
+extern krb4encpwd_printsub();
+#endif
+
+#ifdef RSA_ENCPWD
+extern rsaencpwd_init();
+extern rsaencpwd_send();
+extern rsaencpwd_is();
+extern rsaencpwd_reply();
+extern rsaencpwd_status();
+extern rsaencpwd_printsub();
+#endif
+
+int auth_debug_mode = 0;
+static char *Name = "Noname";
+static int Server = 0;
+static Authenticator *authenticated = 0;
+static int authenticating = 0;
+static int validuser = 0;
+static unsigned char _auth_send_data[256];
+static unsigned char *auth_send_data;
+static int auth_send_cnt = 0;
+
+/*
+ * Authentication types supported. Plese note that these are stored
+ * in priority order, i.e. try the first one first.
+ */
+Authenticator authenticators[] = {
+#ifdef SPX
+ { AUTHTYPE_SPX, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ spx_init,
+ spx_send,
+ spx_is,
+ spx_reply,
+ spx_status,
+ spx_printsub },
+ { AUTHTYPE_SPX, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ spx_init,
+ spx_send,
+ spx_is,
+ spx_reply,
+ spx_status,
+ spx_printsub },
+#endif
+#ifdef KRB5
+# ifdef ENCRYPTION
+ { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ kerberos5_init,
+ kerberos5_send,
+ kerberos5_is,
+ kerberos5_reply,
+ kerberos5_status,
+ kerberos5_printsub },
+# endif /* ENCRYPTION */
+ { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ kerberos5_init,
+ kerberos5_send,
+ kerberos5_is,
+ kerberos5_reply,
+ kerberos5_status,
+ kerberos5_printsub },
+#endif
+#ifdef KRB4
+# ifdef ENCRYPTION
+ { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ kerberos4_init,
+ kerberos4_send,
+ kerberos4_is,
+ kerberos4_reply,
+ kerberos4_status,
+ kerberos4_printsub },
+# endif /* ENCRYPTION */
+ { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ kerberos4_init,
+ kerberos4_send,
+ kerberos4_is,
+ kerberos4_reply,
+ kerberos4_status,
+ kerberos4_printsub },
+#endif
+#ifdef KRB4_ENCPWD
+ { AUTHTYPE_KRB4_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ krb4encpwd_init,
+ krb4encpwd_send,
+ krb4encpwd_is,
+ krb4encpwd_reply,
+ krb4encpwd_status,
+ krb4encpwd_printsub },
+#endif
+#ifdef RSA_ENCPWD
+ { AUTHTYPE_RSA_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ rsaencpwd_init,
+ rsaencpwd_send,
+ rsaencpwd_is,
+ rsaencpwd_reply,
+ rsaencpwd_status,
+ rsaencpwd_printsub },
+#endif
+ { 0, },
+};
+
+static Authenticator NoAuth = { 0 };
+
+static int i_support = 0;
+static int i_wont_support = 0;
+
+ Authenticator *
+findauthenticator(type, way)
+ int type;
+ int way;
+{
+ Authenticator *ap = authenticators;
+
+ while (ap->type && (ap->type != type || ap->way != way))
+ ++ap;
+ return(ap->type ? ap : 0);
+}
+
+ void
+auth_init(name, server)
+ char *name;
+ int server;
+{
+ Authenticator *ap = authenticators;
+
+ Server = server;
+ Name = name;
+
+ i_support = 0;
+ authenticated = 0;
+ authenticating = 0;
+ while (ap->type) {
+ if (!ap->init || (*ap->init)(ap, server)) {
+ i_support |= typemask(ap->type);
+ if (auth_debug_mode)
+ printf(">>>%s: I support auth type %d %d\r\n",
+ Name,
+ ap->type, ap->way);
+ }
+ ++ap;
+ }
+}
+
+ void
+auth_disable_name(name)
+ char *name;
+{
+ int x;
+ for (x = 0; x < AUTHTYPE_CNT; ++x) {
+ if (!strcasecmp(name, AUTHTYPE_NAME(x))) {
+ i_wont_support |= typemask(x);
+ break;
+ }
+ }
+}
+
+ int
+getauthmask(type, maskp)
+ char *type;
+ int *maskp;
+{
+ register int x;
+
+ if (strcasecmp(type, AUTHTYPE_NAME(0))) {
+ *maskp = -1;
+ return(1);
+ }
+
+ for (x = 1; x < AUTHTYPE_CNT; ++x) {
+ if (!strcasecmp(type, AUTHTYPE_NAME(x))) {
+ *maskp = typemask(x);
+ return(1);
+ }
+ }
+ return(0);
+}
+
+ int
+auth_enable(type)
+ int type;
+{
+ return(auth_onoff(type, 1));
+}
+
+ int
+auth_disable(type)
+ int type;
+{
+ return(auth_onoff(type, 0));
+}
+
+ int
+auth_onoff(type, on)
+ char *type;
+ int on;
+{
+ int mask = -1;
+ Authenticator *ap;
+
+ if (!strcasecmp(type, "?") || !strcasecmp(type, "help")) {
+ printf("auth %s 'type'\n", on ? "enable" : "disable");
+ printf("Where 'type' is one of:\n");
+ printf("\t%s\n", AUTHTYPE_NAME(0));
+ for (ap = authenticators; ap->type; ap++)
+ printf("\t%s\n", AUTHTYPE_NAME(ap->type));
+ return(0);
+ }
+
+ if (!getauthmask(type, &mask)) {
+ printf("%s: invalid authentication type\n", type);
+ return(0);
+ }
+ mask = getauthmask(type, &mask);
+ if (on)
+ i_wont_support &= ~mask;
+ else
+ i_wont_support |= mask;
+ return(1);
+}
+
+ int
+auth_togdebug(on)
+ int on;
+{
+ if (on < 0)
+ auth_debug_mode ^= 1;
+ else
+ auth_debug_mode = on;
+ printf("auth debugging %s\n", auth_debug_mode ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+auth_status()
+{
+ Authenticator *ap;
+
+ if (i_wont_support == -1)
+ printf("Authentication disabled\n");
+ else
+ printf("Authentication enabled\n");
+
+ for (ap = authenticators; ap->type; ap++)
+ printf("%s: %s\n", AUTHTYPE_NAME(ap->type),
+ (i_wont_support & typemask(ap->type)) ?
+ "disabled" : "enabled");
+ return(1);
+}
+
+/*
+ * This routine is called by the server to start authentication
+ * negotiation.
+ */
+ void
+auth_request()
+{
+ static unsigned char str_request[64] = { IAC, SB,
+ TELOPT_AUTHENTICATION,
+ TELQUAL_SEND, };
+ Authenticator *ap = authenticators;
+ unsigned char *e = str_request + 4;
+
+ if (!authenticating) {
+ authenticating = 1;
+ while (ap->type) {
+ if (i_support & ~i_wont_support & typemask(ap->type)) {
+ if (auth_debug_mode) {
+ printf(">>>%s: Sending type %d %d\r\n",
+ Name, ap->type, ap->way);
+ }
+ *e++ = ap->type;
+ *e++ = ap->way;
+ }
+ ++ap;
+ }
+ *e++ = IAC;
+ *e++ = SE;
+ net_write(str_request, e - str_request);
+ printsub('>', &str_request[2], e - str_request - 2);
+ }
+}
+
+/*
+ * This is called when an AUTH SEND is received.
+ * It should never arrive on the server side (as only the server can
+ * send an AUTH SEND).
+ * You should probably respond to it if you can...
+ *
+ * If you want to respond to the types out of order (i.e. even
+ * if he sends LOGIN KERBEROS and you support both, you respond
+ * with KERBEROS instead of LOGIN (which is against what the
+ * protocol says)) you will have to hack this code...
+ */
+ void
+auth_send(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+ static unsigned char str_none[] = { IAC, SB, TELOPT_AUTHENTICATION,
+ TELQUAL_IS, AUTHTYPE_NULL, 0,
+ IAC, SE };
+ if (Server) {
+ if (auth_debug_mode) {
+ printf(">>>%s: auth_send called!\r\n", Name);
+ }
+ return;
+ }
+
+ if (auth_debug_mode) {
+ printf(">>>%s: auth_send got:", Name);
+ printd(data, cnt); printf("\r\n");
+ }
+
+ /*
+ * Save the data, if it is new, so that we can continue looking
+ * at it if the authorization we try doesn't work
+ */
+ if (data < _auth_send_data ||
+ data > _auth_send_data + sizeof(_auth_send_data)) {
+ auth_send_cnt = cnt > sizeof(_auth_send_data)
+ ? sizeof(_auth_send_data)
+ : cnt;
+ bcopy((void *)data, (void *)_auth_send_data, auth_send_cnt);
+ auth_send_data = _auth_send_data;
+ } else {
+ /*
+ * This is probably a no-op, but we just make sure
+ */
+ auth_send_data = data;
+ auth_send_cnt = cnt;
+ }
+ while ((auth_send_cnt -= 2) >= 0) {
+ if (auth_debug_mode)
+ printf(">>>%s: He supports %d\r\n",
+ Name, *auth_send_data);
+ if ((i_support & ~i_wont_support) & typemask(*auth_send_data)) {
+ ap = findauthenticator(auth_send_data[0],
+ auth_send_data[1]);
+ if (ap && ap->send) {
+ if (auth_debug_mode)
+ printf(">>>%s: Trying %d %d\r\n",
+ Name, auth_send_data[0],
+ auth_send_data[1]);
+ if ((*ap->send)(ap)) {
+ /*
+ * Okay, we found one we like
+ * and did it.
+ * we can go home now.
+ */
+ if (auth_debug_mode)
+ printf(">>>%s: Using type %d\r\n",
+ Name, *auth_send_data);
+ auth_send_data += 2;
+ return;
+ }
+ }
+ /* else
+ * just continue on and look for the
+ * next one if we didn't do anything.
+ */
+ }
+ auth_send_data += 2;
+ }
+ net_write(str_none, sizeof(str_none));
+ printsub('>', &str_none[2], sizeof(str_none) - 2);
+ if (auth_debug_mode)
+ printf(">>>%s: Sent failure message\r\n", Name);
+ auth_finished(0, AUTH_REJECT);
+#ifdef KANNAN
+ /*
+ * We requested strong authentication, however no mechanisms worked.
+ * Therefore, exit on client end.
+ */
+ printf("Unable to securely authenticate user ... exit\n");
+ exit(0);
+#endif /* KANNAN */
+}
+
+ void
+auth_send_retry()
+{
+ /*
+ * if auth_send_cnt <= 0 then auth_send will end up rejecting
+ * the authentication and informing the other side of this.
+ */
+ auth_send(auth_send_data, auth_send_cnt);
+}
+
+ void
+auth_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+
+ if (cnt < 2)
+ return;
+
+ if (data[0] == AUTHTYPE_NULL) {
+ auth_finished(0, AUTH_REJECT);
+ return;
+ }
+
+ if (ap = findauthenticator(data[0], data[1])) {
+ if (ap->is)
+ (*ap->is)(ap, data+2, cnt-2);
+ } else if (auth_debug_mode)
+ printf(">>>%s: Invalid authentication in IS: %d\r\n",
+ Name, *data);
+}
+
+ void
+auth_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+
+ if (cnt < 2)
+ return;
+
+ if (ap = findauthenticator(data[0], data[1])) {
+ if (ap->reply)
+ (*ap->reply)(ap, data+2, cnt-2);
+ } else if (auth_debug_mode)
+ printf(">>>%s: Invalid authentication in SEND: %d\r\n",
+ Name, *data);
+}
+
+ void
+auth_name(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+ unsigned char savename[256];
+
+ if (cnt < 1) {
+ if (auth_debug_mode)
+ printf(">>>%s: Empty name in NAME\r\n", Name);
+ return;
+ }
+ if (cnt > sizeof(savename) - 1) {
+ if (auth_debug_mode)
+ printf(">>>%s: Name in NAME (%d) exceeds %d length\r\n",
+ Name, cnt, sizeof(savename)-1);
+ return;
+ }
+ bcopy((void *)data, (void *)savename, cnt);
+ savename[cnt] = '\0'; /* Null terminate */
+ if (auth_debug_mode)
+ printf(">>>%s: Got NAME [%s]\r\n", Name, savename);
+ auth_encrypt_user(savename);
+}
+
+ int
+auth_sendname(cp, len)
+ unsigned char *cp;
+ int len;
+{
+ static unsigned char str_request[256+6]
+ = { IAC, SB, TELOPT_AUTHENTICATION, TELQUAL_NAME, };
+ register unsigned char *e = str_request + 4;
+ register unsigned char *ee = &str_request[sizeof(str_request)-2];
+
+ while (--len >= 0) {
+ if ((*e++ = *cp++) == IAC)
+ *e++ = IAC;
+ if (e >= ee)
+ return(0);
+ }
+ *e++ = IAC;
+ *e++ = SE;
+ net_write(str_request, e - str_request);
+ printsub('>', &str_request[2], e - &str_request[2]);
+ return(1);
+}
+
+ void
+auth_finished(ap, result)
+ Authenticator *ap;
+ int result;
+{
+ if (!(authenticated = ap))
+ authenticated = &NoAuth;
+ validuser = result;
+}
+
+ /* ARGSUSED */
+ static void
+auth_intr(sig)
+ int sig;
+{
+ auth_finished(0, AUTH_REJECT);
+}
+
+ int
+auth_wait(name)
+ char *name;
+{
+ if (auth_debug_mode)
+ printf(">>>%s: in auth_wait.\r\n", Name);
+
+ if (Server && !authenticating)
+ return(0);
+
+ (void) signal(SIGALRM, auth_intr);
+ alarm(30);
+ while (!authenticated)
+ if (telnet_spin())
+ break;
+ alarm(0);
+ (void) signal(SIGALRM, SIG_DFL);
+
+ /*
+ * Now check to see if the user is valid or not
+ */
+ if (!authenticated || authenticated == &NoAuth)
+ return(AUTH_REJECT);
+
+ if (validuser == AUTH_VALID)
+ validuser = AUTH_USER;
+
+ if (authenticated->status)
+ validuser = (*authenticated->status)(authenticated,
+ name, validuser);
+ return(validuser);
+}
+
+ void
+auth_debug(mode)
+ int mode;
+{
+ auth_debug_mode = mode;
+}
+
+ void
+auth_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ Authenticator *ap;
+
+ if ((ap = findauthenticator(data[1], data[2])) && ap->printsub)
+ (*ap->printsub)(data, cnt, buf, buflen);
+ else
+ auth_gen_printsub(data, cnt, buf, buflen);
+}
+
+ void
+auth_gen_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ register unsigned char *cp;
+ unsigned char tbuf[16];
+
+ cnt -= 3;
+ data += 3;
+ buf[buflen-1] = '\0';
+ buf[buflen-2] = '*';
+ buflen -= 2;
+ for (; cnt > 0; cnt--, data++) {
+ sprintf((char *)tbuf, " %d", *data);
+ for (cp = tbuf; *cp && buflen > 0; --buflen)
+ *buf++ = *cp++;
+ if (buflen <= 0)
+ return;
+ }
+ *buf = '\0';
+}
+#endif
diff --git a/eBones/lib/libtelnet/auth.h b/eBones/lib/libtelnet/auth.h
new file mode 100644
index 000000000000..615e8a07b894
--- /dev/null
+++ b/eBones/lib/libtelnet/auth.h
@@ -0,0 +1,87 @@
+/*-
+ * 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.
+ *
+ * @(#)auth.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __AUTH__
+#define __AUTH__
+
+#define AUTH_REJECT 0 /* Rejected */
+#define AUTH_UNKNOWN 1 /* We don't know who he is, but he's okay */
+#define AUTH_OTHER 2 /* We know him, but not his name */
+#define AUTH_USER 3 /* We know he name */
+#define AUTH_VALID 4 /* We know him, and he needs no password */
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+typedef struct XauthP {
+ int type;
+ int way;
+ int (*init) P((struct XauthP *, int));
+ int (*send) P((struct XauthP *));
+ void (*is) P((struct XauthP *, unsigned char *, int));
+ void (*reply) P((struct XauthP *, unsigned char *, int));
+ int (*status) P((struct XauthP *, char *, int));
+ void (*printsub) P((unsigned char *, int, unsigned char *, int));
+} Authenticator;
+
+#include "auth-proto.h"
+
+extern auth_debug_mode;
+#endif
diff --git a/eBones/lib/libtelnet/enc-proto.h b/eBones/lib/libtelnet/enc-proto.h
new file mode 100644
index 000000000000..2e30908f292d
--- /dev/null
+++ b/eBones/lib/libtelnet/enc-proto.h
@@ -0,0 +1,125 @@
+/*-
+ * 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.
+ *
+ * @(#)enc-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+#ifdef ENCRYPTION
+void encrypt_init P((char *, int));
+Encryptions *findencryption P((int));
+void encrypt_send_supprt P((void));
+void encrypt_auto P((int));
+void decrypt_auto P((int));
+void encrypt_is P((unsigned char *, int));
+void encrypt_reply P((unsigned char *, int));
+void encrypt_start_input P((int));
+void encrypt_session_key P((Session_Key *, int));
+void encrypt_end_input P((void));
+void encrypt_start_output P((int));
+void encrypt_end_output P((void));
+void encrypt_send_request_start P((void));
+void encrypt_send_request_end P((void));
+void encrypt_send_end P((void));
+void encrypt_wait P((void));
+void encrypt_send_support P((void));
+void encrypt_send_keyid P((int, unsigned char *, int, int));
+int net_write P((unsigned char *, int));
+
+#ifdef TELENTD
+void encrypt_wait P((void));
+#else
+int encrypt_cmd P((int, char **));
+void encrypt_display P((void));
+#endif
+
+void krbdes_encrypt P((unsigned char *, int));
+int krbdes_decrypt P((int));
+int krbdes_is P((unsigned char *, int));
+int krbdes_reply P((unsigned char *, int));
+void krbdes_init P((int));
+int krbdes_start P((int, int));
+void krbdes_session P((Session_Key *, int));
+void krbdes_printsub P((unsigned char *, int, unsigned char *, int));
+
+void cfb64_encrypt P((unsigned char *, int));
+int cfb64_decrypt P((int));
+void cfb64_init P((int));
+int cfb64_start P((int, int));
+int cfb64_is P((unsigned char *, int));
+int cfb64_reply P((unsigned char *, int));
+void cfb64_session P((Session_Key *, int));
+int cfb64_keyid P((int, unsigned char *, int *));
+void cfb64_printsub P((unsigned char *, int, unsigned char *, int));
+
+void ofb64_encrypt P((unsigned char *, int));
+int ofb64_decrypt P((int));
+void ofb64_init P((int));
+int ofb64_start P((int, int));
+int ofb64_is P((unsigned char *, int));
+int ofb64_reply P((unsigned char *, int));
+void ofb64_session P((Session_Key *, int));
+int ofb64_keyid P((int, unsigned char *, int *));
+void ofb64_printsub P((unsigned char *, int, unsigned char *, int));
+
+int des_new_random_key P((Block));
+void des_set_random_generator_seed P((Block));
+void des_key_sched P((Block, Schedule));
+void des_ecb_encrypt P((Block, Block, Schedule, int));
+int des_string_to_key P((char *, Block));
+#endif /* ENCRYPTION */
diff --git a/eBones/lib/libtelnet/enc_des.c b/eBones/lib/libtelnet/enc_des.c
new file mode 100644
index 000000000000..15e8521c1714
--- /dev/null
+++ b/eBones/lib/libtelnet/enc_des.c
@@ -0,0 +1,724 @@
+/*-
+ * 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[] = "@(#)enc_des.c 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+#ifdef ENCRYPTION
+# ifdef AUTHENTICATION
+# ifdef DES_ENCRYPTION
+#include <arpa/telnet.h>
+#include <stdio.h>
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+
+#include "encrypt.h"
+#include "key-proto.h"
+#include "misc-proto.h"
+
+extern encrypt_debug_mode;
+
+#define CFB 0
+#define OFB 1
+
+#define NO_SEND_IV 1
+#define NO_RECV_IV 2
+#define NO_KEYID 4
+#define IN_PROGRESS (NO_SEND_IV|NO_RECV_IV|NO_KEYID)
+#define SUCCESS 0
+#define FAILED -1
+
+
+struct fb {
+ Block krbdes_key;
+ Schedule krbdes_sched;
+ Block temp_feed;
+ unsigned char fb_feed[64];
+ int need_start;
+ int state[2];
+ int keyid[2];
+ int once;
+ struct stinfo {
+ Block str_output;
+ Block str_feed;
+ Block str_iv;
+ Block str_ikey;
+ Schedule str_sched;
+ int str_index;
+ int str_flagshift;
+ } streams[2];
+};
+
+static struct fb fb[2];
+
+struct keyidlist {
+ char *keyid;
+ int keyidlen;
+ char *key;
+ int keylen;
+ int flags;
+} keyidlist [] = {
+ { "\0", 1, 0, 0, 0 }, /* default key of zero */
+ { 0, 0, 0, 0, 0 }
+};
+
+#define KEYFLAG_MASK 03
+
+#define KEYFLAG_NOINIT 00
+#define KEYFLAG_INIT 01
+#define KEYFLAG_OK 02
+#define KEYFLAG_BAD 03
+
+#define KEYFLAG_SHIFT 2
+
+#define SHIFT_VAL(a,b) (KEYFLAG_SHIFT*((a)+((b)*2)))
+
+#define FB64_IV 1
+#define FB64_IV_OK 2
+#define FB64_IV_BAD 3
+
+
+void fb64_stream_iv P((Block, struct stinfo *));
+void fb64_init P((struct fb *));
+static int fb64_start P((struct fb *, int, int));
+int fb64_is P((unsigned char *, int, struct fb *));
+int fb64_reply P((unsigned char *, int, struct fb *));
+static void fb64_session P((Session_Key *, int, struct fb *));
+void fb64_stream_key P((Block, struct stinfo *));
+int fb64_keyid P((int, unsigned char *, int *, struct fb *));
+
+ void
+cfb64_init(server)
+ int server;
+{
+ fb64_init(&fb[CFB]);
+ fb[CFB].fb_feed[4] = ENCTYPE_DES_CFB64;
+ fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, CFB);
+ fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, CFB);
+}
+
+ void
+ofb64_init(server)
+ int server;
+{
+ fb64_init(&fb[OFB]);
+ fb[OFB].fb_feed[4] = ENCTYPE_DES_OFB64;
+ fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, OFB);
+ fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, OFB);
+}
+
+ void
+fb64_init(fbp)
+ register struct fb *fbp;
+{
+ bzero((void *)fbp, sizeof(*fbp));
+ fbp->state[0] = fbp->state[1] = FAILED;
+ fbp->fb_feed[0] = IAC;
+ fbp->fb_feed[1] = SB;
+ fbp->fb_feed[2] = TELOPT_ENCRYPT;
+ fbp->fb_feed[3] = ENCRYPT_IS;
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ * 2: Not yet. Other things (like getting the key from
+ * Kerberos) have to happen before we can continue.
+ */
+ int
+cfb64_start(dir, server)
+ int dir;
+ int server;
+{
+ return(fb64_start(&fb[CFB], dir, server));
+}
+ int
+ofb64_start(dir, server)
+ int dir;
+ int server;
+{
+ return(fb64_start(&fb[OFB], dir, server));
+}
+
+ static int
+fb64_start(fbp, dir, server)
+ struct fb *fbp;
+ int dir;
+ int server;
+{
+ Block b;
+ int x;
+ unsigned char *p;
+ register int state;
+
+ switch (dir) {
+ case DIR_DECRYPT:
+ /*
+ * This is simply a request to have the other side
+ * start output (our input). He will negotiate an
+ * IV so we need not look for it.
+ */
+ state = fbp->state[dir-1];
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ break;
+
+ case DIR_ENCRYPT:
+ state = fbp->state[dir-1];
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ else if ((state & NO_SEND_IV) == 0)
+ break;
+
+ if (!VALIDKEY(fbp->krbdes_key)) {
+ fbp->need_start = 1;
+ break;
+ }
+ state &= ~NO_SEND_IV;
+ state |= NO_RECV_IV;
+ if (encrypt_debug_mode)
+ printf("Creating new feed\r\n");
+ /*
+ * Create a random feed and send it over.
+ */
+ des_new_random_key(fbp->temp_feed);
+ des_ecb_encrypt(fbp->temp_feed, fbp->temp_feed,
+ fbp->krbdes_sched, 1);
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_IS;
+ p++;
+ *p++ = FB64_IV;
+ for (x = 0; x < sizeof(Block); ++x) {
+ if ((*p++ = fbp->temp_feed[x]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+ break;
+ default:
+ return(FAILED);
+ }
+ return(fbp->state[dir-1] = state);
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ */
+ int
+cfb64_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_is(data, cnt, &fb[CFB]));
+}
+ int
+ofb64_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_is(data, cnt, &fb[OFB]));
+}
+
+ int
+fb64_is(data, cnt, fbp)
+ unsigned char *data;
+ int cnt;
+ struct fb *fbp;
+{
+ int x;
+ unsigned char *p;
+ Block b;
+ register int state = fbp->state[DIR_DECRYPT-1];
+
+ if (cnt-- < 1)
+ goto failure;
+
+ switch (*data++) {
+ case FB64_IV:
+ if (cnt != sizeof(Block)) {
+ if (encrypt_debug_mode)
+ printf("CFB64: initial vector failed on size\r\n");
+ state = FAILED;
+ goto failure;
+ }
+
+ if (encrypt_debug_mode)
+ printf("CFB64: initial vector received\r\n");
+
+ if (encrypt_debug_mode)
+ printf("Initializing Decrypt stream\r\n");
+
+ fb64_stream_iv((void *)data, &fbp->streams[DIR_DECRYPT-1]);
+
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_REPLY;
+ p++;
+ *p++ = FB64_IV_OK;
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+
+ state = fbp->state[DIR_DECRYPT-1] = IN_PROGRESS;
+ break;
+
+ default:
+ if (encrypt_debug_mode) {
+ printf("Unknown option type: %d\r\n", *(data-1));
+ printd(data, cnt);
+ printf("\r\n");
+ }
+ /* FALL THROUGH */
+ failure:
+ /*
+ * We failed. Send an FB64_IV_BAD option
+ * to the other side so it will know that
+ * things failed.
+ */
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_REPLY;
+ p++;
+ *p++ = FB64_IV_BAD;
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+
+ break;
+ }
+ return(fbp->state[DIR_DECRYPT-1] = state);
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ */
+ int
+cfb64_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_reply(data, cnt, &fb[CFB]));
+}
+ int
+ofb64_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_reply(data, cnt, &fb[OFB]));
+}
+
+
+ int
+fb64_reply(data, cnt, fbp)
+ unsigned char *data;
+ int cnt;
+ struct fb *fbp;
+{
+ int x;
+ unsigned char *p;
+ Block b;
+ register int state = fbp->state[DIR_ENCRYPT-1];
+
+ if (cnt-- < 1)
+ goto failure;
+
+ switch (*data++) {
+ case FB64_IV_OK:
+ fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ state &= ~NO_RECV_IV;
+ encrypt_send_keyid(DIR_ENCRYPT, (unsigned char *)"\0", 1, 1);
+ break;
+
+ case FB64_IV_BAD:
+ bzero(fbp->temp_feed, sizeof(Block));
+ fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
+ state = FAILED;
+ break;
+
+ default:
+ if (encrypt_debug_mode) {
+ printf("Unknown option type: %d\r\n", data[-1]);
+ printd(data, cnt);
+ printf("\r\n");
+ }
+ /* FALL THROUGH */
+ failure:
+ state = FAILED;
+ break;
+ }
+ return(fbp->state[DIR_ENCRYPT-1] = state);
+}
+
+ void
+cfb64_session(key, server)
+ Session_Key *key;
+ int server;
+{
+ fb64_session(key, server, &fb[CFB]);
+}
+
+ void
+ofb64_session(key, server)
+ Session_Key *key;
+ int server;
+{
+ fb64_session(key, server, &fb[OFB]);
+}
+
+ static void
+fb64_session(key, server, fbp)
+ Session_Key *key;
+ int server;
+ struct fb *fbp;
+{
+
+ if (!key || key->type != SK_DES) {
+ if (encrypt_debug_mode)
+ printf("Can't set krbdes's session key (%d != %d)\r\n",
+ key ? key->type : -1, SK_DES);
+ return;
+ }
+ bcopy((void *)key->data, (void *)fbp->krbdes_key, sizeof(Block));
+
+ fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_ENCRYPT-1]);
+ fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]);
+
+ if (fbp->once == 0) {
+ des_set_random_generator_seed(fbp->krbdes_key);
+ fbp->once = 1;
+ }
+ des_key_sched(fbp->krbdes_key, fbp->krbdes_sched);
+ /*
+ * Now look to see if krbdes_start() was was waiting for
+ * the key to show up. If so, go ahead an call it now
+ * that we have the key.
+ */
+ if (fbp->need_start) {
+ fbp->need_start = 0;
+ fb64_start(fbp, DIR_ENCRYPT, server);
+ }
+}
+
+/*
+ * We only accept a keyid of 0. If we get a keyid of
+ * 0, then mark the state as SUCCESS.
+ */
+ int
+cfb64_keyid(dir, kp, lenp)
+ int dir, *lenp;
+ unsigned char *kp;
+{
+ return(fb64_keyid(dir, kp, lenp, &fb[CFB]));
+}
+
+ int
+ofb64_keyid(dir, kp, lenp)
+ int dir, *lenp;
+ unsigned char *kp;
+{
+ return(fb64_keyid(dir, kp, lenp, &fb[OFB]));
+}
+
+ int
+fb64_keyid(dir, kp, lenp, fbp)
+ int dir, *lenp;
+ unsigned char *kp;
+ struct fb *fbp;
+{
+ register int state = fbp->state[dir-1];
+
+ if (*lenp != 1 || (*kp != '\0')) {
+ *lenp = 0;
+ return(state);
+ }
+
+ if (state == FAILED)
+ state = IN_PROGRESS;
+
+ state &= ~NO_KEYID;
+
+ return(fbp->state[dir-1] = state);
+}
+
+ void
+fb64_printsub(data, cnt, buf, buflen, type)
+ unsigned char *data, *buf, *type;
+ int cnt, buflen;
+{
+ char lbuf[32];
+ register int i;
+ char *cp;
+
+ buf[buflen-1] = '\0'; /* make sure it's NULL terminated */
+ buflen -= 1;
+
+ switch(data[2]) {
+ case FB64_IV:
+ sprintf(lbuf, "%s_IV", type);
+ cp = lbuf;
+ goto common;
+
+ case FB64_IV_OK:
+ sprintf(lbuf, "%s_IV_OK", type);
+ cp = lbuf;
+ goto common;
+
+ case FB64_IV_BAD:
+ sprintf(lbuf, "%s_IV_BAD", type);
+ cp = lbuf;
+ goto common;
+
+ default:
+ sprintf(lbuf, " %d (unknown)", data[2]);
+ cp = lbuf;
+ common:
+ for (; (buflen > 0) && (*buf = *cp++); buf++)
+ buflen--;
+ for (i = 3; i < cnt; i++) {
+ sprintf(lbuf, " %d", data[i]);
+ for (cp = lbuf; (buflen > 0) && (*buf = *cp++); buf++)
+ buflen--;
+ }
+ break;
+ }
+}
+
+ void
+cfb64_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ fb64_printsub(data, cnt, buf, buflen, "CFB64");
+}
+
+ void
+ofb64_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ fb64_printsub(data, cnt, buf, buflen, "OFB64");
+}
+
+ void
+fb64_stream_iv(seed, stp)
+ Block seed;
+ register struct stinfo *stp;
+{
+
+ bcopy((void *)seed, (void *)stp->str_iv, sizeof(Block));
+ bcopy((void *)seed, (void *)stp->str_output, sizeof(Block));
+
+ des_key_sched(stp->str_ikey, stp->str_sched);
+
+ stp->str_index = sizeof(Block);
+}
+
+ void
+fb64_stream_key(key, stp)
+ Block key;
+ register struct stinfo *stp;
+{
+ bcopy((void *)key, (void *)stp->str_ikey, sizeof(Block));
+ des_key_sched(key, stp->str_sched);
+
+ bcopy((void *)stp->str_iv, (void *)stp->str_output, sizeof(Block));
+
+ stp->str_index = sizeof(Block);
+}
+
+/*
+ * DES 64 bit Cipher Feedback
+ *
+ * key --->+-----+
+ * +->| DES |--+
+ * | +-----+ |
+ * | v
+ * INPUT --(--------->(+)+---> DATA
+ * | |
+ * +-------------+
+ *
+ *
+ * Given:
+ * iV: Initial vector, 64 bits (8 bytes) long.
+ * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
+ * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
+ *
+ * V0 = DES(iV, key)
+ * On = Dn ^ Vn
+ * V(n+1) = DES(On, key)
+ */
+
+ void
+cfb64_encrypt(s, c)
+ register unsigned char *s;
+ int c;
+{
+ register struct stinfo *stp = &fb[CFB].streams[DIR_ENCRYPT-1];
+ register int index;
+
+ index = stp->str_index;
+ while (c-- > 0) {
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_output, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ index = 0;
+ }
+
+ /* On encryption, we store (feed ^ data) which is cypher */
+ *s = stp->str_output[index] = (stp->str_feed[index] ^ *s);
+ s++;
+ index++;
+ }
+ stp->str_index = index;
+}
+
+ int
+cfb64_decrypt(data)
+ int data;
+{
+ register struct stinfo *stp = &fb[CFB].streams[DIR_DECRYPT-1];
+ int index;
+
+ if (data == -1) {
+ /*
+ * Back up one byte. It is assumed that we will
+ * never back up more than one byte. If we do, this
+ * may or may not work.
+ */
+ if (stp->str_index)
+ --stp->str_index;
+ return(0);
+ }
+
+ index = stp->str_index++;
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_output, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ stp->str_index = 1; /* Next time will be 1 */
+ index = 0; /* But now use 0 */
+ }
+
+ /* On decryption we store (data) which is cypher. */
+ stp->str_output[index] = data;
+ return(data ^ stp->str_feed[index]);
+}
+
+/*
+ * DES 64 bit Output Feedback
+ *
+ * key --->+-----+
+ * +->| DES |--+
+ * | +-----+ |
+ * +-----------+
+ * v
+ * INPUT -------->(+) ----> DATA
+ *
+ * Given:
+ * iV: Initial vector, 64 bits (8 bytes) long.
+ * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
+ * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
+ *
+ * V0 = DES(iV, key)
+ * V(n+1) = DES(Vn, key)
+ * On = Dn ^ Vn
+ */
+ void
+ofb64_encrypt(s, c)
+ register unsigned char *s;
+ int c;
+{
+ register struct stinfo *stp = &fb[OFB].streams[DIR_ENCRYPT-1];
+ register int index;
+
+ index = stp->str_index;
+ while (c-- > 0) {
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_feed, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ index = 0;
+ }
+ *s++ ^= stp->str_feed[index];
+ index++;
+ }
+ stp->str_index = index;
+}
+
+ int
+ofb64_decrypt(data)
+ int data;
+{
+ register struct stinfo *stp = &fb[OFB].streams[DIR_DECRYPT-1];
+ int index;
+
+ if (data == -1) {
+ /*
+ * Back up one byte. It is assumed that we will
+ * never back up more than one byte. If we do, this
+ * may or may not work.
+ */
+ if (stp->str_index)
+ --stp->str_index;
+ return(0);
+ }
+
+ index = stp->str_index++;
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_feed, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ stp->str_index = 1; /* Next time will be 1 */
+ index = 0; /* But now use 0 */
+ }
+
+ return(data ^ stp->str_feed[index]);
+}
+# endif /* DES_ENCRYPTION */
+# endif /* AUTHENTICATION */
+#endif /* ENCRYPTION */
diff --git a/eBones/lib/libtelnet/encrypt.c b/eBones/lib/libtelnet/encrypt.c
new file mode 100644
index 000000000000..8662473f3256
--- /dev/null
+++ b/eBones/lib/libtelnet/encrypt.c
@@ -0,0 +1,999 @@
+/*-
+ * 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[] = "@(#)encrypt.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 ENCRYPTION
+
+#define ENCRYPT_NAMES
+#include <arpa/telnet.h>
+
+#include "encrypt.h"
+#include "misc.h"
+
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+#ifdef NO_STRING_H
+#include <strings.h>
+#else
+#include <string.h>
+#endif
+
+/*
+ * These functions pointers point to the current routines
+ * for encrypting and decrypting data.
+ */
+void (*encrypt_output) P((unsigned char *, int));
+int (*decrypt_input) P((int));
+
+int encrypt_debug_mode = 0;
+static int decrypt_mode = 0;
+static int encrypt_mode = 0;
+static int encrypt_verbose = 0;
+static int autoencrypt = 0;
+static int autodecrypt = 0;
+static int havesessionkey = 0;
+static int Server = 0;
+static char *Name = "Noname";
+
+#define typemask(x) ((x) > 0 ? 1 << ((x)-1) : 0)
+
+static long i_support_encrypt = typemask(ENCTYPE_DES_CFB64)
+ | typemask(ENCTYPE_DES_OFB64);
+static long i_support_decrypt = typemask(ENCTYPE_DES_CFB64)
+ | typemask(ENCTYPE_DES_OFB64);
+static long i_wont_support_encrypt = 0;
+static long i_wont_support_decrypt = 0;
+#define I_SUPPORT_ENCRYPT (i_support_encrypt & ~i_wont_support_encrypt)
+#define I_SUPPORT_DECRYPT (i_support_decrypt & ~i_wont_support_decrypt)
+
+static long remote_supports_encrypt = 0;
+static long remote_supports_decrypt = 0;
+
+static Encryptions encryptions[] = {
+#ifdef DES_ENCRYPTION
+ { "DES_CFB64", ENCTYPE_DES_CFB64,
+ cfb64_encrypt,
+ cfb64_decrypt,
+ cfb64_init,
+ cfb64_start,
+ cfb64_is,
+ cfb64_reply,
+ cfb64_session,
+ cfb64_keyid,
+ cfb64_printsub },
+ { "DES_OFB64", ENCTYPE_DES_OFB64,
+ ofb64_encrypt,
+ ofb64_decrypt,
+ ofb64_init,
+ ofb64_start,
+ ofb64_is,
+ ofb64_reply,
+ ofb64_session,
+ ofb64_keyid,
+ ofb64_printsub },
+#endif /* DES_ENCRYPTION */
+ { 0, },
+};
+
+static unsigned char str_send[64] = { IAC, SB, TELOPT_ENCRYPT,
+ ENCRYPT_SUPPORT };
+static unsigned char str_suplen = 0;
+static unsigned char str_start[72] = { IAC, SB, TELOPT_ENCRYPT };
+static unsigned char str_end[] = { IAC, SB, TELOPT_ENCRYPT, 0, IAC, SE };
+
+ Encryptions *
+findencryption(type)
+ int type;
+{
+ Encryptions *ep = encryptions;
+
+ if (!(I_SUPPORT_ENCRYPT & remote_supports_decrypt & typemask(type)))
+ return(0);
+ while (ep->type && ep->type != type)
+ ++ep;
+ return(ep->type ? ep : 0);
+}
+
+ Encryptions *
+finddecryption(type)
+ int type;
+{
+ Encryptions *ep = encryptions;
+
+ if (!(I_SUPPORT_DECRYPT & remote_supports_encrypt & typemask(type)))
+ return(0);
+ while (ep->type && ep->type != type)
+ ++ep;
+ return(ep->type ? ep : 0);
+}
+
+#define MAXKEYLEN 64
+
+static struct key_info {
+ unsigned char keyid[MAXKEYLEN];
+ int keylen;
+ int dir;
+ int *modep;
+ Encryptions *(*getcrypt)();
+} ki[2] = {
+ { { 0 }, 0, DIR_ENCRYPT, &encrypt_mode, findencryption },
+ { { 0 }, 0, DIR_DECRYPT, &decrypt_mode, finddecryption },
+};
+
+ void
+encrypt_init(name, server)
+ char *name;
+ int server;
+{
+ Encryptions *ep = encryptions;
+
+ Name = name;
+ Server = server;
+ i_support_encrypt = i_support_decrypt = 0;
+ remote_supports_encrypt = remote_supports_decrypt = 0;
+ encrypt_mode = 0;
+ decrypt_mode = 0;
+ encrypt_output = 0;
+ decrypt_input = 0;
+#ifdef notdef
+ encrypt_verbose = !server;
+#endif
+
+ str_suplen = 4;
+
+ while (ep->type) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: I will support %s\r\n",
+ Name, ENCTYPE_NAME(ep->type));
+ i_support_encrypt |= typemask(ep->type);
+ i_support_decrypt |= typemask(ep->type);
+ if ((i_wont_support_decrypt & typemask(ep->type)) == 0)
+ if ((str_send[str_suplen++] = ep->type) == IAC)
+ str_send[str_suplen++] = IAC;
+ if (ep->init)
+ (*ep->init)(Server);
+ ++ep;
+ }
+ str_send[str_suplen++] = IAC;
+ str_send[str_suplen++] = SE;
+}
+
+ void
+encrypt_list_types()
+{
+ Encryptions *ep = encryptions;
+
+ printf("Valid encryption types:\n");
+ while (ep->type) {
+ printf("\t%s (%d)\r\n", ENCTYPE_NAME(ep->type), ep->type);
+ ++ep;
+ }
+}
+
+ int
+EncryptEnable(type, mode)
+ char *type, *mode;
+{
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt enable <type> [input|output]\n");
+ encrypt_list_types();
+ return(0);
+ }
+ if (EncryptType(type, mode))
+ return(EncryptStart(mode));
+ return(0);
+}
+
+ int
+EncryptDisable(type, mode)
+ char *type, *mode;
+{
+ register Encryptions *ep;
+ int ret = 0;
+
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt disable <type> [input|output]\n");
+ encrypt_list_types();
+ } else if ((ep = (Encryptions *)genget(type, encryptions,
+ sizeof(Encryptions))) == 0) {
+ printf("%s: invalid encryption type\n", type);
+ } else if (Ambiguous(ep)) {
+ printf("Ambiguous type '%s'\n", type);
+ } else {
+ if ((mode == 0) || (isprefix(mode, "input") ? 1 : 0)) {
+ if (decrypt_mode == ep->type)
+ EncryptStopInput();
+ i_wont_support_decrypt |= typemask(ep->type);
+ ret = 1;
+ }
+ if ((mode == 0) || (isprefix(mode, "output"))) {
+ if (encrypt_mode == ep->type)
+ EncryptStopOutput();
+ i_wont_support_encrypt |= typemask(ep->type);
+ ret = 1;
+ }
+ if (ret == 0)
+ printf("%s: invalid encryption mode\n", mode);
+ }
+ return(ret);
+}
+
+ int
+EncryptType(type, mode)
+ char *type;
+ char *mode;
+{
+ register Encryptions *ep;
+ int ret = 0;
+
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt type <type> [input|output]\n");
+ encrypt_list_types();
+ } else if ((ep = (Encryptions *)genget(type, encryptions,
+ sizeof(Encryptions))) == 0) {
+ printf("%s: invalid encryption type\n", type);
+ } else if (Ambiguous(ep)) {
+ printf("Ambiguous type '%s'\n", type);
+ } else {
+ if ((mode == 0) || isprefix(mode, "input")) {
+ decrypt_mode = ep->type;
+ i_wont_support_decrypt &= ~typemask(ep->type);
+ ret = 1;
+ }
+ if ((mode == 0) || isprefix(mode, "output")) {
+ encrypt_mode = ep->type;
+ i_wont_support_encrypt &= ~typemask(ep->type);
+ ret = 1;
+ }
+ if (ret == 0)
+ printf("%s: invalid encryption mode\n", mode);
+ }
+ return(ret);
+}
+
+ int
+EncryptStart(mode)
+ char *mode;
+{
+ register int ret = 0;
+ if (mode) {
+ if (isprefix(mode, "input"))
+ return(EncryptStartInput());
+ if (isprefix(mode, "output"))
+ return(EncryptStartOutput());
+ if (isprefix(mode, "help") || isprefix(mode, "?")) {
+ printf("Usage: encrypt start [input|output]\n");
+ return(0);
+ }
+ printf("%s: invalid encryption mode 'encrypt start ?' for help\n", mode);
+ return(0);
+ }
+ ret += EncryptStartInput();
+ ret += EncryptStartOutput();
+ return(ret);
+}
+
+ int
+EncryptStartInput()
+{
+ if (decrypt_mode) {
+ encrypt_send_request_start();
+ return(1);
+ }
+ printf("No previous decryption mode, decryption not enabled\r\n");
+ return(0);
+}
+
+ int
+EncryptStartOutput()
+{
+ if (encrypt_mode) {
+ encrypt_start_output(encrypt_mode);
+ return(1);
+ }
+ printf("No previous encryption mode, encryption not enabled\r\n");
+ return(0);
+}
+
+ int
+EncryptStop(mode)
+ char *mode;
+{
+ int ret = 0;
+ if (mode) {
+ if (isprefix(mode, "input"))
+ return(EncryptStopInput());
+ if (isprefix(mode, "output"))
+ return(EncryptStopOutput());
+ if (isprefix(mode, "help") || isprefix(mode, "?")) {
+ printf("Usage: encrypt stop [input|output]\n");
+ return(0);
+ }
+ printf("%s: invalid encryption mode 'encrypt stop ?' for help\n", mode);
+ return(0);
+ }
+ ret += EncryptStopInput();
+ ret += EncryptStopOutput();
+ return(ret);
+}
+
+ int
+EncryptStopInput()
+{
+ encrypt_send_request_end();
+ return(1);
+}
+
+ int
+EncryptStopOutput()
+{
+ encrypt_send_end();
+ return(1);
+}
+
+ void
+encrypt_display()
+{
+ if (encrypt_output)
+ printf("Currently encrypting output with %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ if (decrypt_input)
+ printf("Currently decrypting input with %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+}
+
+ int
+EncryptStatus()
+{
+ if (encrypt_output)
+ printf("Currently encrypting output with %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ else if (encrypt_mode) {
+ printf("Currently output is clear text.\r\n");
+ printf("Last encryption mode was %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ }
+ if (decrypt_input) {
+ printf("Currently decrypting input with %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ } else if (decrypt_mode) {
+ printf("Currently input is clear text.\r\n");
+ printf("Last decryption mode was %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ }
+ return 1;
+}
+
+ void
+encrypt_send_support()
+{
+ if (str_suplen) {
+ /*
+ * If the user has requested that decryption start
+ * immediatly, then send a "REQUEST START" before
+ * we negotiate the type.
+ */
+ if (!Server && autodecrypt)
+ encrypt_send_request_start();
+ net_write(str_send, str_suplen);
+ printsub('>', &str_send[2], str_suplen - 2);
+ str_suplen = 0;
+ }
+}
+
+ int
+EncryptDebug(on)
+ int on;
+{
+ if (on < 0)
+ encrypt_debug_mode ^= 1;
+ else
+ encrypt_debug_mode = on;
+ printf("Encryption debugging %s\r\n",
+ encrypt_debug_mode ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+EncryptVerbose(on)
+ int on;
+{
+ if (on < 0)
+ encrypt_verbose ^= 1;
+ else
+ encrypt_verbose = on;
+ printf("Encryption %s verbose\r\n",
+ encrypt_verbose ? "is" : "is not");
+ return(1);
+}
+
+ int
+EncryptAutoEnc(on)
+ int on;
+{
+ encrypt_auto(on);
+ printf("Automatic encryption of output is %s\r\n",
+ autoencrypt ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+EncryptAutoDec(on)
+ int on;
+{
+ decrypt_auto(on);
+ printf("Automatic decryption of input is %s\r\n",
+ autodecrypt ? "enabled" : "disabled");
+ return(1);
+}
+
+/*
+ * Called when ENCRYPT SUPPORT is received.
+ */
+ void
+encrypt_support(typelist, cnt)
+ unsigned char *typelist;
+ int cnt;
+{
+ register int type, use_type = 0;
+ Encryptions *ep;
+
+ /*
+ * Forget anything the other side has previously told us.
+ */
+ remote_supports_decrypt = 0;
+
+ while (cnt-- > 0) {
+ type = *typelist++;
+ if (encrypt_debug_mode)
+ printf(">>>%s: He is supporting %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME(type), type);
+ if ((type < ENCTYPE_CNT) &&
+ (I_SUPPORT_ENCRYPT & typemask(type))) {
+ remote_supports_decrypt |= typemask(type);
+ if (use_type == 0)
+ use_type = type;
+ }
+ }
+ if (use_type) {
+ ep = findencryption(use_type);
+ if (!ep)
+ return;
+ type = ep->start ? (*ep->start)(DIR_ENCRYPT, Server) : 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: (*ep->start)() returned %d\r\n",
+ Name, type);
+ if (type < 0)
+ return;
+ encrypt_mode = use_type;
+ if (type == 0)
+ encrypt_start_output(use_type);
+ }
+}
+
+ void
+encrypt_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+ register int type, ret;
+
+ if (--cnt < 0)
+ return;
+ type = *data++;
+ if (type < ENCTYPE_CNT)
+ remote_supports_encrypt |= typemask(type);
+ if (!(ep = finddecryption(type))) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ return;
+ }
+ if (!ep->is) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ ret = 0;
+ } else {
+ ret = (*ep->is)(data, cnt);
+ if (encrypt_debug_mode)
+ printf("(*ep->is)(%x, %d) returned %s(%d)\n", data, cnt,
+ (ret < 0) ? "FAIL " :
+ (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
+ }
+ if (ret < 0) {
+ autodecrypt = 0;
+ } else {
+ decrypt_mode = type;
+ if (ret == 0 && autodecrypt)
+ encrypt_send_request_start();
+ }
+}
+
+ void
+encrypt_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+ register int ret, type;
+
+ if (--cnt < 0)
+ return;
+ type = *data++;
+ if (!(ep = findencryption(type))) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ return;
+ }
+ if (!ep->reply) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ ret = 0;
+ } else {
+ ret = (*ep->reply)(data, cnt);
+ if (encrypt_debug_mode)
+ printf("(*ep->reply)(%x, %d) returned %s(%d)\n",
+ data, cnt,
+ (ret < 0) ? "FAIL " :
+ (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
+ }
+ if (encrypt_debug_mode)
+ printf(">>>%s: encrypt_reply returned %d\n", Name, ret);
+ if (ret < 0) {
+ autoencrypt = 0;
+ } else {
+ encrypt_mode = type;
+ if (ret == 0 && autoencrypt)
+ encrypt_start_output(type);
+ }
+}
+
+/*
+ * Called when a ENCRYPT START command is received.
+ */
+ void
+encrypt_start(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+
+ if (!decrypt_mode) {
+ /*
+ * Something is wrong. We should not get a START
+ * command without having already picked our
+ * decryption scheme. Send a REQUEST-END to
+ * attempt to clear the channel...
+ */
+ printf("%s: Warning, Cannot decrypt input stream!!!\r\n", Name);
+ encrypt_send_request_end();
+ return;
+ }
+
+ if (ep = finddecryption(decrypt_mode)) {
+ decrypt_input = ep->input;
+ if (encrypt_verbose)
+ printf("[ Input is now decrypted with type %s ]\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ if (encrypt_debug_mode)
+ printf(">>>%s: Start to decrypt input with type %s\r\n",
+ Name, ENCTYPE_NAME(decrypt_mode));
+ } else {
+ printf("%s: Warning, Cannot decrypt type %s (%d)!!!\r\n",
+ Name,
+ ENCTYPE_NAME_OK(decrypt_mode)
+ ? ENCTYPE_NAME(decrypt_mode)
+ : "(unknown)",
+ decrypt_mode);
+ encrypt_send_request_end();
+ }
+}
+
+ void
+encrypt_session_key(key, server)
+ Session_Key *key;
+ int server;
+{
+ Encryptions *ep = encryptions;
+
+ havesessionkey = 1;
+
+ while (ep->type) {
+ if (ep->session)
+ (*ep->session)(key, server);
+#ifdef notdef
+ if (!encrypt_output && autoencrypt && !server)
+ encrypt_start_output(ep->type);
+ if (!decrypt_input && autodecrypt && !server)
+ encrypt_send_request_start();
+#endif
+ ++ep;
+ }
+}
+
+/*
+ * Called when ENCRYPT END is received.
+ */
+ void
+encrypt_end()
+{
+ decrypt_input = 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Input is back to clear text\r\n", Name);
+ if (encrypt_verbose)
+ printf("[ Input is now clear text ]\r\n");
+}
+
+/*
+ * Called when ENCRYPT REQUEST-END is received.
+ */
+ void
+encrypt_request_end()
+{
+ encrypt_send_end();
+}
+
+/*
+ * Called when ENCRYPT REQUEST-START is received. If we receive
+ * this before a type is picked, then that indicates that the
+ * other side wants us to start encrypting data as soon as we
+ * can.
+ */
+ void
+encrypt_request_start(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ if (encrypt_mode == 0) {
+ if (Server)
+ autoencrypt = 1;
+ return;
+ }
+ encrypt_start_output(encrypt_mode);
+}
+
+static unsigned char str_keyid[(MAXKEYLEN*2)+5] = { IAC, SB, TELOPT_ENCRYPT };
+
+encrypt_enc_keyid(keyid, len)
+ unsigned char *keyid;
+ int len;
+{
+ encrypt_keyid(&ki[1], keyid, len);
+}
+
+encrypt_dec_keyid(keyid, len)
+ unsigned char *keyid;
+ int len;
+{
+ encrypt_keyid(&ki[0], keyid, len);
+}
+
+encrypt_keyid(kp, keyid, len)
+ struct key_info *kp;
+ unsigned char *keyid;
+ int len;
+{
+ Encryptions *ep;
+ unsigned char *strp, *cp;
+ int dir = kp->dir;
+ register int ret = 0;
+
+ if (!(ep = (*kp->getcrypt)(*kp->modep))) {
+ if (len == 0)
+ return;
+ kp->keylen = 0;
+ } else if (len == 0) {
+ /*
+ * Empty option, indicates a failure.
+ */
+ if (kp->keylen == 0)
+ return;
+ kp->keylen = 0;
+ if (ep->keyid)
+ (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
+
+ } else if ((len != kp->keylen) || (bcmp(keyid, kp->keyid, len) != 0)) {
+ /*
+ * Length or contents are different
+ */
+ kp->keylen = len;
+ bcopy(keyid, kp->keyid, len);
+ if (ep->keyid)
+ (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
+ } else {
+ if (ep->keyid)
+ ret = (*ep->keyid)(dir, kp->keyid, &kp->keylen);
+ if ((ret == 0) && (dir == DIR_ENCRYPT) && autoencrypt)
+ encrypt_start_output(*kp->modep);
+ return;
+ }
+
+ encrypt_send_keyid(dir, kp->keyid, kp->keylen, 0);
+}
+
+ void
+encrypt_send_keyid(dir, keyid, keylen, saveit)
+ int dir;
+ unsigned char *keyid;
+ int keylen;
+ int saveit;
+{
+ unsigned char *strp;
+
+ str_keyid[3] = (dir == DIR_ENCRYPT)
+ ? ENCRYPT_ENC_KEYID : ENCRYPT_DEC_KEYID;
+ if (saveit) {
+ struct key_info *kp = &ki[(dir == DIR_ENCRYPT) ? 0 : 1];
+ bcopy(keyid, kp->keyid, keylen);
+ kp->keylen = keylen;
+ }
+
+ for (strp = &str_keyid[4]; keylen > 0; --keylen) {
+ if ((*strp++ = *keyid++) == IAC)
+ *strp++ = IAC;
+ }
+ *strp++ = IAC;
+ *strp++ = SE;
+ net_write(str_keyid, strp - str_keyid);
+ printsub('>', &str_keyid[2], strp - str_keyid - 2);
+}
+
+ void
+encrypt_auto(on)
+ int on;
+{
+ if (on < 0)
+ autoencrypt ^= 1;
+ else
+ autoencrypt = on ? 1 : 0;
+}
+
+ void
+decrypt_auto(on)
+ int on;
+{
+ if (on < 0)
+ autodecrypt ^= 1;
+ else
+ autodecrypt = on ? 1 : 0;
+}
+
+ void
+encrypt_start_output(type)
+ int type;
+{
+ Encryptions *ep;
+ register unsigned char *p;
+ register int i;
+
+ if (!(ep = findencryption(type))) {
+ if (encrypt_debug_mode) {
+ printf(">>>%s: Can't encrypt with type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ }
+ return;
+ }
+ if (ep->start) {
+ i = (*ep->start)(DIR_ENCRYPT, Server);
+ if (encrypt_debug_mode) {
+ printf(">>>%s: Encrypt start: %s (%d) %s\r\n",
+ Name,
+ (i < 0) ? "failed" :
+ "initial negotiation in progress",
+ i, ENCTYPE_NAME(type));
+ }
+ if (i)
+ return;
+ }
+ p = str_start + 3;
+ *p++ = ENCRYPT_START;
+ for (i = 0; i < ki[0].keylen; ++i) {
+ if ((*p++ = ki[0].keyid[i]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ net_write(str_start, p - str_start);
+ net_encrypt();
+ printsub('>', &str_start[2], p - &str_start[2]);
+ /*
+ * If we are already encrypting in some mode, then
+ * encrypt the ring (which includes our request) in
+ * the old mode, mark it all as "clear text" and then
+ * switch to the new mode.
+ */
+ encrypt_output = ep->output;
+ encrypt_mode = type;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Started to encrypt output with type %s\r\n",
+ Name, ENCTYPE_NAME(type));
+ if (encrypt_verbose)
+ printf("[ Output is now encrypted with type %s ]\r\n",
+ ENCTYPE_NAME(type));
+}
+
+ void
+encrypt_send_end()
+{
+ if (!encrypt_output)
+ return;
+
+ str_end[3] = ENCRYPT_END;
+ net_write(str_end, sizeof(str_end));
+ net_encrypt();
+ printsub('>', &str_end[2], sizeof(str_end) - 2);
+ /*
+ * Encrypt the output buffer now because it will not be done by
+ * netflush...
+ */
+ encrypt_output = 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Output is back to clear text\r\n", Name);
+ if (encrypt_verbose)
+ printf("[ Output is now clear text ]\r\n");
+}
+
+ void
+encrypt_send_request_start()
+{
+ register unsigned char *p;
+ register int i;
+
+ p = &str_start[3];
+ *p++ = ENCRYPT_REQSTART;
+ for (i = 0; i < ki[1].keylen; ++i) {
+ if ((*p++ = ki[1].keyid[i]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ net_write(str_start, p - str_start);
+ printsub('>', &str_start[2], p - &str_start[2]);
+ if (encrypt_debug_mode)
+ printf(">>>%s: Request input to be encrypted\r\n", Name);
+}
+
+ void
+encrypt_send_request_end()
+{
+ str_end[3] = ENCRYPT_REQEND;
+ net_write(str_end, sizeof(str_end));
+ printsub('>', &str_end[2], sizeof(str_end) - 2);
+
+ if (encrypt_debug_mode)
+ printf(">>>%s: Request input to be clear text\r\n", Name);
+}
+
+ void
+encrypt_wait()
+{
+ register int encrypt, decrypt;
+ if (encrypt_debug_mode)
+ printf(">>>%s: in encrypt_wait\r\n", Name);
+ if (!havesessionkey || !(I_SUPPORT_ENCRYPT & remote_supports_decrypt))
+ return;
+ while (autoencrypt && !encrypt_output)
+ if (telnet_spin())
+ return;
+}
+
+ void
+encrypt_debug(mode)
+ int mode;
+{
+ encrypt_debug_mode = mode;
+}
+
+ void
+encrypt_gen_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ char tbuf[16], *cp;
+
+ cnt -= 2;
+ data += 2;
+ buf[buflen-1] = '\0';
+ buf[buflen-2] = '*';
+ buflen -= 2;;
+ for (; cnt > 0; cnt--, data++) {
+ sprintf(tbuf, " %d", *data);
+ for (cp = tbuf; *cp && buflen > 0; --buflen)
+ *buf++ = *cp++;
+ if (buflen <= 0)
+ return;
+ }
+ *buf = '\0';
+}
+
+ void
+encrypt_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ Encryptions *ep;
+ register int type = data[1];
+
+ for (ep = encryptions; ep->type && ep->type != type; ep++)
+ ;
+
+ if (ep->printsub)
+ (*ep->printsub)(data, cnt, buf, buflen);
+ else
+ encrypt_gen_printsub(data, cnt, buf, buflen);
+}
+#endif /* ENCRYPTION */
diff --git a/eBones/lib/libtelnet/encrypt.h b/eBones/lib/libtelnet/encrypt.h
new file mode 100644
index 000000000000..e0ae385f13f3
--- /dev/null
+++ b/eBones/lib/libtelnet/encrypt.h
@@ -0,0 +1,108 @@
+/*-
+ * 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.
+ *
+ * @(#)encrypt.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 ENCRYPTION
+# ifndef __ENCRYPTION__
+# define __ENCRYPTION__
+
+#define DIR_DECRYPT 1
+#define DIR_ENCRYPT 2
+
+typedef unsigned char Block[8];
+typedef unsigned char *BlockT;
+typedef struct { Block _; } Schedule[16];
+
+#define VALIDKEY(key) ( key[0] | key[1] | key[2] | key[3] | \
+ key[4] | key[5] | key[6] | key[7])
+
+#define SAMEKEY(k1, k2) (!bcmp((void *)k1, (void *)k2, sizeof(Block)))
+
+typedef struct {
+ short type;
+ int length;
+ unsigned char *data;
+} Session_Key;
+
+# if !defined(P)
+# ifdef __STDC__
+# define P(x) x
+# else
+# define P(x) ()
+# endif
+# endif
+
+typedef struct {
+ char *name;
+ int type;
+ void (*output) P((unsigned char *, int));
+ int (*input) P((int));
+ void (*init) P((int));
+ int (*start) P((int, int));
+ int (*is) P((unsigned char *, int));
+ int (*reply) P((unsigned char *, int));
+ void (*session) P((Session_Key *, int));
+ int (*keyid) P((int, unsigned char *, int *));
+ void (*printsub) P((unsigned char *, int, unsigned char *, int));
+} Encryptions;
+
+#define SK_DES 1 /* Matched Kerberos v5 KEYTYPE_DES */
+
+#include "enc-proto.h"
+
+extern int encrypt_debug_mode;
+extern int (*decrypt_input) P((int));
+extern void (*encrypt_output) P((unsigned char *, int));
+# endif /* __ENCRYPTION__ */
+#endif /* ENCRYPTION */
diff --git a/eBones/lib/libtelnet/genget.c b/eBones/lib/libtelnet/genget.c
new file mode 100644
index 000000000000..a43579f82ffb
--- /dev/null
+++ b/eBones/lib/libtelnet/genget.c
@@ -0,0 +1,105 @@
+/*-
+ * 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[] = "@(#)genget.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+
+#include <ctype.h>
+
+#define LOWER(x) (isupper(x) ? tolower(x) : (x))
+/*
+ * The prefix function returns 0 if *s1 is not a prefix
+ * of *s2. If *s1 exactly matches *s2, the negative of
+ * the length is returned. If *s1 is a prefix of *s2,
+ * the length of *s1 is returned.
+ */
+ int
+isprefix(s1, s2)
+ register char *s1, *s2;
+{
+ register int n = 0;
+ char *os1;
+ register char c1, c2;
+
+ if (*s1 == '\0')
+ return(-1);
+ os1 = s1;
+ c1 = *s1;
+ c2 = *s2;
+ while (LOWER(c1) == LOWER(c2)) {
+ if (c1 == '\0')
+ break;
+ c1 = *++s1;
+ c2 = *++s2;
+ }
+ return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1)));
+}
+
+static char *ambiguous; /* special return value for command routines */
+
+ char **
+genget(name, table, stlen)
+ char *name; /* name to match */
+ char **table; /* name entry in table */
+ int stlen;
+{
+ register char **c, **found;
+ register int n;
+
+ if (name == 0)
+ return 0;
+
+ found = 0;
+ for (c = table; *c != 0; c = (char **)((char *)c + stlen)) {
+ if ((n = isprefix(name, *c)) == 0)
+ continue;
+ if (n < 0) /* exact match */
+ return(c);
+ if (found)
+ return(&ambiguous);
+ found = c;
+ }
+ return(found);
+}
+
+/*
+ * Function call version of Ambiguous()
+ */
+ int
+Ambiguous(s)
+ char *s;
+{
+ return((char **)s == &ambiguous);
+}
diff --git a/eBones/lib/libtelnet/getent.c b/eBones/lib/libtelnet/getent.c
new file mode 100644
index 000000000000..05626f11d413
--- /dev/null
+++ b/eBones/lib/libtelnet/getent.c
@@ -0,0 +1,68 @@
+/*-
+ * 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[] = "@(#)getent.c 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+static char *area;
+
+/*ARGSUSED*/
+getent(cp, name)
+char *cp, *name;
+{
+#ifdef HAS_CGETENT
+ char *dba[2];
+
+ dba[0] = "/etc/gettytab";
+ dba[1] = 0;
+ return((cgetent(&area, dba, name) == 0) ? 1 : 0);
+#else
+ return(0);
+#endif
+}
+
+#ifndef SOLARIS
+/*ARGSUSED*/
+char *
+getstr(id, cpp)
+char *id, **cpp;
+{
+# ifdef HAS_CGETENT
+ char *answer;
+ return((cgetstr(area, id, &answer) > 0) ? answer : 0);
+# else
+ return(0);
+# endif
+}
+#endif
diff --git a/eBones/lib/libtelnet/kerberos.c b/eBones/lib/libtelnet/kerberos.c
new file mode 100644
index 000000000000..aa9b4189c86c
--- /dev/null
+++ b/eBones/lib/libtelnet/kerberos.c
@@ -0,0 +1,554 @@
+/*-
+ * 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[] = "@(#)kerberos.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 KRB4
+#include <sys/types.h>
+#include <arpa/telnet.h>
+#include <stdio.h>
+#include <des.h> /* BSD wont include this in krb.h, so we do it here */
+#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 kerberos4_cksum P((unsigned char *, int));
+int krb_mk_req P((KTEXT, char *, char *, char *, u_long));
+int krb_rd_req P((KTEXT, char *, char *, u_long, AUTH_DAT *, char *));
+int krb_kntoln P((AUTH_DAT *, char *));
+int krb_get_cred P((char *, char *, char *, CREDENTIALS *));
+int krb_get_lrealm P((char *, int));
+int kuserok P((AUTH_DAT *, char *));
+
+extern auth_debug_mode;
+
+static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
+ AUTHTYPE_KERBEROS_V4, };
+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_CHALLENGE 3 /* Challenge for mutual auth. */
+#define KRB_RESPONSE 4 /* Response for mutual auth. */
+
+#define KRB_SERVICE_NAME "rcmd"
+
+static KTEXT_ST auth;
+static char name[ANAME_SZ];
+static AUTH_DAT adat = { 0 };
+#ifdef ENCRYPTION
+static Block session_key = { 0 };
+static Schedule sched;
+static Block challenge = { 0 };
+#endif /* ENCRYPTION */
+
+ 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 (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
+kerberos4_init(ap, server)
+ Authenticator *ap;
+ int server;
+{
+ FILE *fp;
+
+ if (server) {
+ str_data[3] = TELQUAL_REPLY;
+ if ((fp = fopen(KEYFILE, "r")) == NULL)
+ return(0);
+ fclose(fp);
+ } else {
+ str_data[3] = TELQUAL_IS;
+ }
+ return(1);
+}
+
+char dst_realm_buf[REALM_SZ], *dest_realm = NULL;
+int dst_realm_sz = REALM_SZ;
+
+ int
+kerberos4_send(ap)
+ Authenticator *ap;
+{
+ KTEXT_ST auth;
+#ifdef ENCRYPTION
+ Block enckey;
+#endif /* ENCRYPTION */
+ char instance[INST_SZ];
+ char *realm;
+ char *krb_realmofhost();
+ char *krb_get_phost();
+ CREDENTIALS cred;
+ int r;
+
+ printf("[ Trying KERBEROS4 ... ]\n");
+ if (!UserNameRequested) {
+ if (auth_debug_mode) {
+ printf("Kerberos V4: no user name supplied\r\n");
+ }
+ return(0);
+ }
+
+ bzero(instance, sizeof(instance));
+
+ if (realm = krb_get_phost(RemoteHostName))
+ strncpy(instance, realm, sizeof(instance));
+
+ instance[sizeof(instance)-1] = '\0';
+
+ realm = dest_realm ? dest_realm : krb_realmofhost(RemoteHostName);
+
+ if (!realm) {
+ printf("Kerberos V4: no realm for %s\r\n", RemoteHostName);
+ return(0);
+ }
+ if (r = krb_mk_req(&auth, KRB_SERVICE_NAME, instance, realm, 0L)) {
+ printf("mk_req failed: %s\r\n", krb_err_txt[r]);
+ return(0);
+ }
+ if (r = krb_get_cred(KRB_SERVICE_NAME, instance, realm, &cred)) {
+ printf("get_cred failed: %s\r\n", krb_err_txt[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 (auth_debug_mode)
+ printf("Sent %d bytes of authentication data\r\n", auth.length);
+ if (!Data(ap, KRB_AUTH, (void *)auth.dat, auth.length)) {
+ if (auth_debug_mode)
+ printf("Not enough room for authentication data\r\n");
+ return(0);
+ }
+#ifdef ENCRYPTION
+ /*
+ * 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;
+
+ des_key_sched(cred.session, sched);
+ des_set_random_generator_seed(cred.session);
+ des_new_random_key(challenge);
+ des_ecb_encrypt(challenge, session_key, sched, 1);
+ /*
+ * Increment the challenge by 1, and encrypt it for
+ * later comparison.
+ */
+ for (i = 7; i >= 0; --i) {
+ register int x;
+ x = (unsigned int)challenge[i] + 1;
+ challenge[i] = x; /* ignore overflow */
+ if (x < 256) /* if no overflow, all done */
+ break;
+ }
+ des_ecb_encrypt(challenge, challenge, sched, 1);
+ }
+#endif /* ENCRYPTION */
+
+ if (auth_debug_mode) {
+ printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length));
+ printd(auth.dat, auth.length);
+ printf("\r\n");
+ printf("Sent Kerberos V4 credentials to server\r\n");
+ }
+ return(1);
+}
+
+ void
+kerberos4_is(ap, data, cnt)
+ Authenticator *ap;
+ unsigned char *data;
+ int cnt;
+{
+#ifdef ENCRYPTION
+ Session_Key skey;
+ Block datablock;
+#endif /* ENCRYPTION */
+ char realm[REALM_SZ];
+ char instance[INST_SZ];
+ int r;
+
+ if (cnt-- < 1)
+ return;
+ switch (*data++) {
+ case KRB_AUTH:
+ if (krb_get_lrealm(realm, 1) != KSUCCESS) {
+ Data(ap, KRB_REJECT, (void *)"No local V4 Realm.", -1);
+ auth_finished(ap, AUTH_REJECT);
+ if (auth_debug_mode)
+ printf("No local realm\r\n");
+ return;
+ }
+ bcopy((void *)data, (void *)auth.dat, auth.length = cnt);
+ if (auth_debug_mode) {
+ printf("Got %d bytes of authentication data\r\n", cnt);
+ printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length));
+ printd(auth.dat, auth.length);
+ printf("\r\n");
+ }
+ instance[0] = '*'; instance[1] = 0;
+ if (r = krb_rd_req(&auth, KRB_SERVICE_NAME,
+ instance, 0, &adat, "")) {
+ if (auth_debug_mode)
+ printf("Kerberos failed him as %s\r\n", name);
+ Data(ap, KRB_REJECT, (void *)krb_err_txt[r], -1);
+ auth_finished(ap, AUTH_REJECT);
+ return;
+ }
+#ifdef ENCRYPTION
+ bcopy((void *)adat.session, (void *)session_key, sizeof(Block));
+#endif /* ENCRYPTION */
+ krb_kntoln(&adat, name);
+
+ if (UserNameRequested && !kuserok(&adat, UserNameRequested))
+ Data(ap, KRB_ACCEPT, (void *)0, 0);
+ else
+ Data(ap, KRB_REJECT,
+ (void *)"user is not authorized", -1);
+ auth_finished(ap, AUTH_USER);
+ break;
+
+ case KRB_CHALLENGE:
+#ifndef ENCRYPTION
+ Data(ap, KRB_RESPONSE, (void *)0, 0);
+#else /* ENCRYPTION */
+ if (!VALIDKEY(session_key)) {
+ /*
+ * We don't have a valid session key, so just
+ * send back a response with an empty session
+ * key.
+ */
+ Data(ap, KRB_RESPONSE, (void *)0, 0);
+ break;
+ }
+
+ des_key_sched(session_key, sched);
+ bcopy((void *)data, (void *)datablock, sizeof(Block));
+ /*
+ * Take the received encrypted challenge, and encrypt
+ * it again to get a unique session_key for the
+ * ENCRYPT option.
+ */
+ des_ecb_encrypt(datablock, session_key, sched, 1);
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 1);
+ /*
+ * Now decrypt the received encrypted challenge,
+ * increment by one, re-encrypt it and send it back.
+ */
+ des_ecb_encrypt(datablock, challenge, sched, 0);
+ for (r = 7; r >= 0; r++) {
+ register int t;
+ t = (unsigned int)challenge[r] + 1;
+ challenge[r] = t; /* ignore overflow */
+ if (t < 256) /* if no overflow, all done */
+ break;
+ }
+ des_ecb_encrypt(challenge, challenge, sched, 1);
+ Data(ap, KRB_RESPONSE, (void *)challenge, sizeof(challenge));
+#endif /* ENCRYPTION */
+ break;
+
+ default:
+ if (auth_debug_mode)
+ printf("Unknown Kerberos option %d\r\n", data[-1]);
+ Data(ap, KRB_REJECT, 0, 0);
+ break;
+ }
+}
+
+ void
+kerberos4_reply(ap, data, cnt)
+ Authenticator *ap;
+ unsigned char *data;
+ int cnt;
+{
+#ifdef ENCRYPTION
+ Session_Key skey;
+#endif /* ENCRYPTION */
+
+ if (cnt-- < 1)
+ return;
+ switch (*data++) {
+ case KRB_REJECT:
+ if (cnt > 0) {
+ printf("[ Kerberos V4 refuses authentication because %.*s ]\r\n",
+ cnt, data);
+ } else
+ printf("[ Kerberos V4 refuses authentication ]\r\n");
+ auth_send_retry();
+ return;
+ case KRB_ACCEPT:
+ printf("[ Kerberos V4 accepts you ]\n");
+ if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
+ /*
+ * Send over the encrypted challenge.
+ */
+#ifndef ENCRYPTION
+ Data(ap, KRB_CHALLENGE, (void *)0, 0);
+#else /* ENCRYPTION */
+ Data(ap, KRB_CHALLENGE, (void *)session_key,
+ sizeof(session_key));
+ des_ecb_encrypt(session_key, session_key, sched, 1);
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 0);
+#endif /* ENCRYPTION */
+ return;
+ }
+ auth_finished(ap, AUTH_USER);
+ return;
+ case KRB_RESPONSE:
+#ifdef ENCRYPTION
+ /*
+ * Verify that the response to the challenge is correct.
+ */
+ if ((cnt != sizeof(Block)) ||
+ (0 != memcmp((void *)data, (void *)challenge,
+ sizeof(challenge))))
+ {
+#endif /* ENCRYPTION */
+ printf("[ Kerberos V4 challenge failed!!! ]\r\n");
+ auth_send_retry();
+ return;
+#ifdef ENCRYPTION
+ }
+ printf("[ Kerberos V4 challenge successful ]\r\n");
+ auth_finished(ap, AUTH_USER);
+#endif /* ENCRYPTION */
+ break;
+ default:
+ if (auth_debug_mode)
+ printf("Unknown Kerberos option %d\r\n", data[-1]);
+ return;
+ }
+}
+
+ int
+kerberos4_status(ap, name, level)
+ Authenticator *ap;
+ char *name;
+ int level;
+{
+ if (level < AUTH_USER)
+ return(level);
+
+ if (UserNameRequested && !kuserok(&adat, 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
+kerberos4_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_CHALLENGE:
+ strncpy((char *)buf, " CHALLENGE", buflen);
+ goto common2;
+
+ case KRB_RESPONSE:
+ strncpy((char *)buf, " RESPONSE", 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
+kerberos4_cksum(d, n)
+ unsigned char *d;
+ int n;
+{
+ int ck = 0;
+
+ /*
+ * A comment is probably needed here for those not
+ * well versed in the "C" language. Yes, this is
+ * supposed to be a "switch" with the body of the
+ * "switch" being a "while" statement. The whole
+ * purpose of the switch is to allow us to jump into
+ * the middle of the while() loop, and then not have
+ * to do any more switch()s.
+ *
+ * Some compilers will spit out a warning message
+ * about the loop not being entered at the top.
+ */
+ switch (n&03)
+ while (n > 0) {
+ case 0:
+ ck ^= (int)*d++ << 24;
+ --n;
+ case 3:
+ ck ^= (int)*d++ << 16;
+ --n;
+ case 2:
+ ck ^= (int)*d++ << 8;
+ --n;
+ case 1:
+ ck ^= (int)*d++;
+ --n;
+ }
+ return(ck);
+}
+#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
diff --git a/eBones/lib/libtelnet/kerberos5.c b/eBones/lib/libtelnet/kerberos5.c
new file mode 100644
index 000000000000..d2eb34fff38c
--- /dev/null
+++ b/eBones/lib/libtelnet/kerberos5.c
@@ -0,0 +1,762 @@
+/*
+ * $Source: /home/ncvs/src/lib/libtelnet/kerberos5.c,v $
+ * $Author: rgrimes $
+ * $Id: kerberos5.c,v 1.1.1.1 1994/05/27 05:00:20 rgrimes Exp $
+ */
+
+#if !defined(lint) && !defined(SABER)
+static
+#ifdef __STDC__
+const
+#endif
+char rcsid_kerberos5_c[] = "$Id: kerberos5.c,v 1.1.1.1 1994/05/27 05:00:20 rgrimes Exp $";
+#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 8.2 (Berkeley) 12/15/93";
+#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;
+
+#ifdef ENCRYPTION
+ krb5_keyblock *newkey = 0;
+#endif /* ENCRYPTION */
+
+ ksum.checksum_type = CKSUMTYPE_CRC32;
+ ksum.contents = sum;
+ ksum.length = sizeof(sum);
+ bzero((Voidptr )sum, 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);
+ }
+
+
+ bzero((char *)&creds, 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,
+#ifdef ENCRYPTION
+ &newkey,
+#else /* ENCRYPTION */
+ 0,
+#endif /* ENCRYPTION */
+ 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);
+#ifdef ENCRYPTION
+ if (newkey) {
+ /* keep the key in our private storage, but don't use it
+ yet---see kerberos5_reply() below */
+ if (newkey->keytype != KEYTYPE_DES) {
+ if (creds.keyblock.keytype == KEYTYPE_DES)
+ /* use the session key in credentials instead */
+ memcpy((char *)session_key,
+ (char *)creds.keyblock.contents, sizeof(Block));
+ else
+ /* XXX ? */;
+ } else {
+ memcpy((char *)session_key, (char *)newkey->contents,
+ sizeof(Block));
+ }
+ krb5_free_keyblock(newkey);
+ }
+#endif /* ENCRYPTION */
+ 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;
+#ifdef ENCRYPTION
+ Session_Key skey;
+#endif /* ENCRYPTION */
+ 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) {
+ bcopy((Voidptr )authdat->authenticator->subkey->contents,
+ (Voidptr )session_key, sizeof(Block));
+ } else if (authdat->ticket->enc_part2->session->keytype ==
+ KEYTYPE_DES) {
+ bcopy((Voidptr )authdat->ticket->enc_part2->session->contents,
+ (Voidptr )session_key, sizeof(Block));
+ } else
+ break;
+
+#ifdef ENCRYPTION
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 1);
+#endif /* ENCRYPTION */
+ 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);
+#ifdef ENCRYPTION
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 0);
+#endif /* ENCRYPTION */
+ 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 */
diff --git a/eBones/lib/libtelnet/key-proto.h b/eBones/lib/libtelnet/key-proto.h
new file mode 100644
index 000000000000..9668a775be50
--- /dev/null
+++ b/eBones/lib/libtelnet/key-proto.h
@@ -0,0 +1,71 @@
+/*-
+ * 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.
+ *
+ * @(#)key-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __KEY_PROTO__
+#define __KEY_PROTO__
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+int key_file_exists P((void));
+void key_lookup P((unsigned char *, Block));
+void key_stream_init P((Block, Block, int));
+unsigned char key_stream P((int, int));
+#endif
diff --git a/eBones/lib/libtelnet/krb4encpwd.c b/eBones/lib/libtelnet/krb4encpwd.c
new file mode 100644
index 000000000000..0f75d4d06076
--- /dev/null
+++ b/eBones/lib/libtelnet/krb4encpwd.c
@@ -0,0 +1,446 @@
+/*-
+ * 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 8.1 (Berkeley) 6/4/93";
+#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 = index(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:
+ bcopy((void *)data, (void *)auth.dat, auth.length = cnt);
+
+ gethostname(lhostname, sizeof(lhostname));
+ if ((cp = index(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;
+ }
+
+ bcopy((void *)adat.session, (void *)session_key, 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.
+ */
+ bcopy((void *)data, (void *)challenge, 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 challange, 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);
+ bcopy((void *)data, (void *)challenge, cnt);
+ bzero(user_passwd, 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 = index(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
diff --git a/eBones/lib/libtelnet/misc-proto.h b/eBones/lib/libtelnet/misc-proto.h
new file mode 100644
index 000000000000..e5f334a9bdd0
--- /dev/null
+++ b/eBones/lib/libtelnet/misc-proto.h
@@ -0,0 +1,79 @@
+/*-
+ * 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.
+ *
+ * @(#)misc-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __MISC_PROTO__
+#define __MISC_PROTO__
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+void auth_encrypt_init P((char *, char *, char *, int));
+void auth_encrypt_connect P((int));
+void printd P((unsigned char *, int));
+
+/*
+ * These functions are imported from the application
+ */
+int net_write P((unsigned char *, int));
+void net_encrypt P((void));
+int telnet_spin P((void));
+char *telnet_getenv P((char *));
+char *telnet_gets P((char *, char *, int, int));
+#endif
diff --git a/eBones/lib/libtelnet/misc.c b/eBones/lib/libtelnet/misc.c
new file mode 100644
index 000000000000..9565900a391e
--- /dev/null
+++ b/eBones/lib/libtelnet/misc.c
@@ -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
+#ifdef ENCRYPTION
+ encrypt_init(name, server);
+#endif /* ENCRYPTION */
+ 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;
+ }
+}
diff --git a/eBones/lib/libtelnet/misc.h b/eBones/lib/libtelnet/misc.h
new file mode 100644
index 000000000000..41ffa7f67aa7
--- /dev/null
+++ b/eBones/lib/libtelnet/misc.h
@@ -0,0 +1,42 @@
+/*-
+ * 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.
+ *
+ * @(#)misc.h 8.1 (Berkeley) 6/4/93
+ */
+
+extern char *UserNameRequested;
+extern char *LocalHostName;
+extern char *RemoteHostName;
+extern int ConnectedCount;
+extern int ReservedPort;
+
+#include "misc-proto.h"
diff --git a/eBones/lib/libtelnet/read_password.c b/eBones/lib/libtelnet/read_password.c
new file mode 100644
index 000000000000..5eaa8959c59a
--- /dev/null
+++ b/eBones/lib/libtelnet/read_password.c
@@ -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 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+/*
+ * $Source: /home/ncvs/src/lib/libtelnet/read_password.c,v $
+ * $Author: rgrimes $
+ *
+ * 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 */
+ bcopy((char *)old_env, (char *)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 = index(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 = index(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)
+ bzero(s, max);
+ printf("\n");
+ /* turn echo back on */
+ tty_state.sg_flags |= ECHO;
+ if (ioctl(0,TIOCSETP,(char *)&tty_state))
+ ok = 0;
+/*
+ pop_signals();
+*/
+ bcopy((char *)env, (char *)old_env, sizeof(env));
+ if (verify)
+ bzero(key_string, sizeof (key_string));
+ s[max-1] = 0; /* force termination */
+ return !ok; /* return nonzero if not okay */
+}
+#endif /* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */
diff --git a/eBones/lib/libtelnet/rsaencpwd.c b/eBones/lib/libtelnet/rsaencpwd.c
new file mode 100644
index 000000000000..eda70fe0f737
--- /dev/null
+++ b/eBones/lib/libtelnet/rsaencpwd.c
@@ -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 8.1 (Berkeley) 6/4/93";
+#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;
+ bzero(key_file, sizeof(key_file));
+ gethostname(lhostname, sizeof(lhostname));
+ if ((cp = index(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:
+ bcopy((void *)data, (void *)auth.dat, 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 challange, 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;
+ bcopy(challenge, ptr, challenge_len);
+ ptr += challenge_len;
+ *ptr++ = 0x04; /* OCTET STRING */
+ EncodeLength(ptr, i);
+ ptr += NumEncodeLengthOctets(i);
+ bcopy(key, ptr, 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.
+ */
+
+ bcopy((void *)data, (void *)chalkey, cnt);
+ ptr = (char *) &chalkey[0];
+ ptr += DecodeHeaderLength(chalkey);
+ if (*ptr != 0x04) {
+ return;
+ }
+ *ptr++;
+ challenge_len = DecodeValueLength(ptr);
+ ptr += NumEncodeLengthOctets(challenge_len);
+ bcopy(ptr, challenge, challenge_len);
+ ptr += challenge_len;
+ if (*ptr != 0x04) {
+ return;
+ }
+ *ptr++;
+ pubkey_len = DecodeValueLength(ptr);
+ ptr += NumEncodeLengthOctets(pubkey_len);
+ bcopy(ptr, pubkey, pubkey_len);
+ bzero(user_passwd, 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
diff --git a/eBones/lib/libtelnet/spx.c b/eBones/lib/libtelnet/spx.c
new file mode 100644
index 000000000000..b4634d0a7036
--- /dev/null
+++ b/eBones/lib/libtelnet/spx.c
@@ -0,0 +1,588 @@
+/*-
+ * 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 8.1 (Berkeley) 6/4/93";
+#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 */
+
+#ifdef ENCRYPTION
+static Block session_key = { 0 };
+#endif /* ENCRYPTION */
+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
diff --git a/secure/lib/libtelnet/Makefile b/secure/lib/libtelnet/Makefile
new file mode 100644
index 000000000000..90a0be8773ce
--- /dev/null
+++ b/secure/lib/libtelnet/Makefile
@@ -0,0 +1,33 @@
+# From: @(#)Makefile 8.2 (Berkeley) 12/15/93
+# $Id: Makefile,v 1.2 1994/08/05 02:02:36 wollman Exp $
+
+LIB= telnet
+SRCS= auth.c encrypt.c genget.c getent.c misc.c
+SRCS+= kerberos.c enc_des.c
+#SRCS+= kerberos5.c
+CFLAGS+= -DHAS_CGETENT
+
+# These are the sources that have encryption stuff in them.
+CRYPT_SRC= auth.c enc-proto.h enc_des.c encrypt.c
+CRYPT_SRC+= encrypt.h kerberos.c kerberos5.c krb4encpwd.c
+CRYPT_SRC+= misc.c spx.c Makefile
+NOCRYPT_DIR=${.CURDIR}/Nocrypt
+
+.include <bsd.lib.mk>
+
+nocrypt:
+#ifdef ENCRYPTION
+ @for i in ${CRYPT_SRC}; do \
+ if [ ! -d ${NOCRYPT_DIR} ]; then \
+ echo Creating subdirectory ${NOCRYPT_DIR}; \
+ mkdir ${NOCRYPT_DIR}; \
+ fi; \
+ echo ${NOCRYPT_DIR}/$$i; \
+ unifdef -UENCRYPTION ${.CURDIR}/$$i | \
+ sed "s/ || defined(ENCRYPTION)//" > ${NOCRYPT_DIR}/$$i; \
+ done
+
+placeholder:
+#else /* ENCRYPTION */
+ @echo "Encryption code already removed."
+#endif /* ENCRYPTION */
diff --git a/secure/lib/libtelnet/auth-proto.h b/secure/lib/libtelnet/auth-proto.h
new file mode 100644
index 000000000000..06bba2b55c1d
--- /dev/null
+++ b/secure/lib/libtelnet/auth-proto.h
@@ -0,0 +1,96 @@
+/*-
+ * 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.
+ *
+ * @(#)auth-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+#if defined(AUTHENTICATION)
+Authenticator *findauthenticator P((int, int));
+
+void auth_init P((char *, int));
+int auth_cmd P((int, char **));
+void auth_request P((void));
+void auth_send P((unsigned char *, int));
+void auth_send_retry P((void));
+void auth_is P((unsigned char *, int));
+void auth_reply P((unsigned char *, int));
+void auth_finished P((Authenticator *, int));
+int auth_wait P((char *));
+void auth_disable_name P((char *));
+void auth_gen_printsub P((unsigned char *, int, unsigned char *, int));
+
+#ifdef KRB4
+int kerberos4_init P((Authenticator *, int));
+int kerberos4_send P((Authenticator *));
+void kerberos4_is P((Authenticator *, unsigned char *, int));
+void kerberos4_reply P((Authenticator *, unsigned char *, int));
+int kerberos4_status P((Authenticator *, char *, int));
+void kerberos4_printsub P((unsigned char *, int, unsigned char *, int));
+#endif
+
+#ifdef KRB5
+int kerberos5_init P((Authenticator *, int));
+int kerberos5_send P((Authenticator *));
+void kerberos5_is P((Authenticator *, unsigned char *, int));
+void kerberos5_reply P((Authenticator *, unsigned char *, int));
+int kerberos5_status P((Authenticator *, char *, int));
+void kerberos5_printsub P((unsigned char *, int, unsigned char *, int));
+#endif
+#endif
diff --git a/secure/lib/libtelnet/auth.c b/secure/lib/libtelnet/auth.c
new file mode 100644
index 000000000000..1eb198a895e9
--- /dev/null
+++ b/secure/lib/libtelnet/auth.c
@@ -0,0 +1,658 @@
+/*-
+ * 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[] = "@(#)auth.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+
+#if defined(AUTHENTICATION)
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+#define AUTH_NAMES
+#include <arpa/telnet.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-proto.h"
+#include "auth-proto.h"
+
+#define typemask(x) (1<<((x)-1))
+
+#ifdef KRB4_ENCPWD
+extern krb4encpwd_init();
+extern krb4encpwd_send();
+extern krb4encpwd_is();
+extern krb4encpwd_reply();
+extern krb4encpwd_status();
+extern krb4encpwd_printsub();
+#endif
+
+#ifdef RSA_ENCPWD
+extern rsaencpwd_init();
+extern rsaencpwd_send();
+extern rsaencpwd_is();
+extern rsaencpwd_reply();
+extern rsaencpwd_status();
+extern rsaencpwd_printsub();
+#endif
+
+int auth_debug_mode = 0;
+static char *Name = "Noname";
+static int Server = 0;
+static Authenticator *authenticated = 0;
+static int authenticating = 0;
+static int validuser = 0;
+static unsigned char _auth_send_data[256];
+static unsigned char *auth_send_data;
+static int auth_send_cnt = 0;
+
+/*
+ * Authentication types supported. Plese note that these are stored
+ * in priority order, i.e. try the first one first.
+ */
+Authenticator authenticators[] = {
+#ifdef SPX
+ { AUTHTYPE_SPX, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ spx_init,
+ spx_send,
+ spx_is,
+ spx_reply,
+ spx_status,
+ spx_printsub },
+ { AUTHTYPE_SPX, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ spx_init,
+ spx_send,
+ spx_is,
+ spx_reply,
+ spx_status,
+ spx_printsub },
+#endif
+#ifdef KRB5
+# ifdef ENCRYPTION
+ { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ kerberos5_init,
+ kerberos5_send,
+ kerberos5_is,
+ kerberos5_reply,
+ kerberos5_status,
+ kerberos5_printsub },
+# endif /* ENCRYPTION */
+ { AUTHTYPE_KERBEROS_V5, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ kerberos5_init,
+ kerberos5_send,
+ kerberos5_is,
+ kerberos5_reply,
+ kerberos5_status,
+ kerberos5_printsub },
+#endif
+#ifdef KRB4
+# ifdef ENCRYPTION
+ { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ kerberos4_init,
+ kerberos4_send,
+ kerberos4_is,
+ kerberos4_reply,
+ kerberos4_status,
+ kerberos4_printsub },
+# endif /* ENCRYPTION */
+ { AUTHTYPE_KERBEROS_V4, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ kerberos4_init,
+ kerberos4_send,
+ kerberos4_is,
+ kerberos4_reply,
+ kerberos4_status,
+ kerberos4_printsub },
+#endif
+#ifdef KRB4_ENCPWD
+ { AUTHTYPE_KRB4_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_MUTUAL,
+ krb4encpwd_init,
+ krb4encpwd_send,
+ krb4encpwd_is,
+ krb4encpwd_reply,
+ krb4encpwd_status,
+ krb4encpwd_printsub },
+#endif
+#ifdef RSA_ENCPWD
+ { AUTHTYPE_RSA_ENCPWD, AUTH_WHO_CLIENT|AUTH_HOW_ONE_WAY,
+ rsaencpwd_init,
+ rsaencpwd_send,
+ rsaencpwd_is,
+ rsaencpwd_reply,
+ rsaencpwd_status,
+ rsaencpwd_printsub },
+#endif
+ { 0, },
+};
+
+static Authenticator NoAuth = { 0 };
+
+static int i_support = 0;
+static int i_wont_support = 0;
+
+ Authenticator *
+findauthenticator(type, way)
+ int type;
+ int way;
+{
+ Authenticator *ap = authenticators;
+
+ while (ap->type && (ap->type != type || ap->way != way))
+ ++ap;
+ return(ap->type ? ap : 0);
+}
+
+ void
+auth_init(name, server)
+ char *name;
+ int server;
+{
+ Authenticator *ap = authenticators;
+
+ Server = server;
+ Name = name;
+
+ i_support = 0;
+ authenticated = 0;
+ authenticating = 0;
+ while (ap->type) {
+ if (!ap->init || (*ap->init)(ap, server)) {
+ i_support |= typemask(ap->type);
+ if (auth_debug_mode)
+ printf(">>>%s: I support auth type %d %d\r\n",
+ Name,
+ ap->type, ap->way);
+ }
+ ++ap;
+ }
+}
+
+ void
+auth_disable_name(name)
+ char *name;
+{
+ int x;
+ for (x = 0; x < AUTHTYPE_CNT; ++x) {
+ if (!strcasecmp(name, AUTHTYPE_NAME(x))) {
+ i_wont_support |= typemask(x);
+ break;
+ }
+ }
+}
+
+ int
+getauthmask(type, maskp)
+ char *type;
+ int *maskp;
+{
+ register int x;
+
+ if (strcasecmp(type, AUTHTYPE_NAME(0))) {
+ *maskp = -1;
+ return(1);
+ }
+
+ for (x = 1; x < AUTHTYPE_CNT; ++x) {
+ if (!strcasecmp(type, AUTHTYPE_NAME(x))) {
+ *maskp = typemask(x);
+ return(1);
+ }
+ }
+ return(0);
+}
+
+ int
+auth_enable(type)
+ int type;
+{
+ return(auth_onoff(type, 1));
+}
+
+ int
+auth_disable(type)
+ int type;
+{
+ return(auth_onoff(type, 0));
+}
+
+ int
+auth_onoff(type, on)
+ char *type;
+ int on;
+{
+ int mask = -1;
+ Authenticator *ap;
+
+ if (!strcasecmp(type, "?") || !strcasecmp(type, "help")) {
+ printf("auth %s 'type'\n", on ? "enable" : "disable");
+ printf("Where 'type' is one of:\n");
+ printf("\t%s\n", AUTHTYPE_NAME(0));
+ for (ap = authenticators; ap->type; ap++)
+ printf("\t%s\n", AUTHTYPE_NAME(ap->type));
+ return(0);
+ }
+
+ if (!getauthmask(type, &mask)) {
+ printf("%s: invalid authentication type\n", type);
+ return(0);
+ }
+ mask = getauthmask(type, &mask);
+ if (on)
+ i_wont_support &= ~mask;
+ else
+ i_wont_support |= mask;
+ return(1);
+}
+
+ int
+auth_togdebug(on)
+ int on;
+{
+ if (on < 0)
+ auth_debug_mode ^= 1;
+ else
+ auth_debug_mode = on;
+ printf("auth debugging %s\n", auth_debug_mode ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+auth_status()
+{
+ Authenticator *ap;
+
+ if (i_wont_support == -1)
+ printf("Authentication disabled\n");
+ else
+ printf("Authentication enabled\n");
+
+ for (ap = authenticators; ap->type; ap++)
+ printf("%s: %s\n", AUTHTYPE_NAME(ap->type),
+ (i_wont_support & typemask(ap->type)) ?
+ "disabled" : "enabled");
+ return(1);
+}
+
+/*
+ * This routine is called by the server to start authentication
+ * negotiation.
+ */
+ void
+auth_request()
+{
+ static unsigned char str_request[64] = { IAC, SB,
+ TELOPT_AUTHENTICATION,
+ TELQUAL_SEND, };
+ Authenticator *ap = authenticators;
+ unsigned char *e = str_request + 4;
+
+ if (!authenticating) {
+ authenticating = 1;
+ while (ap->type) {
+ if (i_support & ~i_wont_support & typemask(ap->type)) {
+ if (auth_debug_mode) {
+ printf(">>>%s: Sending type %d %d\r\n",
+ Name, ap->type, ap->way);
+ }
+ *e++ = ap->type;
+ *e++ = ap->way;
+ }
+ ++ap;
+ }
+ *e++ = IAC;
+ *e++ = SE;
+ net_write(str_request, e - str_request);
+ printsub('>', &str_request[2], e - str_request - 2);
+ }
+}
+
+/*
+ * This is called when an AUTH SEND is received.
+ * It should never arrive on the server side (as only the server can
+ * send an AUTH SEND).
+ * You should probably respond to it if you can...
+ *
+ * If you want to respond to the types out of order (i.e. even
+ * if he sends LOGIN KERBEROS and you support both, you respond
+ * with KERBEROS instead of LOGIN (which is against what the
+ * protocol says)) you will have to hack this code...
+ */
+ void
+auth_send(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+ static unsigned char str_none[] = { IAC, SB, TELOPT_AUTHENTICATION,
+ TELQUAL_IS, AUTHTYPE_NULL, 0,
+ IAC, SE };
+ if (Server) {
+ if (auth_debug_mode) {
+ printf(">>>%s: auth_send called!\r\n", Name);
+ }
+ return;
+ }
+
+ if (auth_debug_mode) {
+ printf(">>>%s: auth_send got:", Name);
+ printd(data, cnt); printf("\r\n");
+ }
+
+ /*
+ * Save the data, if it is new, so that we can continue looking
+ * at it if the authorization we try doesn't work
+ */
+ if (data < _auth_send_data ||
+ data > _auth_send_data + sizeof(_auth_send_data)) {
+ auth_send_cnt = cnt > sizeof(_auth_send_data)
+ ? sizeof(_auth_send_data)
+ : cnt;
+ bcopy((void *)data, (void *)_auth_send_data, auth_send_cnt);
+ auth_send_data = _auth_send_data;
+ } else {
+ /*
+ * This is probably a no-op, but we just make sure
+ */
+ auth_send_data = data;
+ auth_send_cnt = cnt;
+ }
+ while ((auth_send_cnt -= 2) >= 0) {
+ if (auth_debug_mode)
+ printf(">>>%s: He supports %d\r\n",
+ Name, *auth_send_data);
+ if ((i_support & ~i_wont_support) & typemask(*auth_send_data)) {
+ ap = findauthenticator(auth_send_data[0],
+ auth_send_data[1]);
+ if (ap && ap->send) {
+ if (auth_debug_mode)
+ printf(">>>%s: Trying %d %d\r\n",
+ Name, auth_send_data[0],
+ auth_send_data[1]);
+ if ((*ap->send)(ap)) {
+ /*
+ * Okay, we found one we like
+ * and did it.
+ * we can go home now.
+ */
+ if (auth_debug_mode)
+ printf(">>>%s: Using type %d\r\n",
+ Name, *auth_send_data);
+ auth_send_data += 2;
+ return;
+ }
+ }
+ /* else
+ * just continue on and look for the
+ * next one if we didn't do anything.
+ */
+ }
+ auth_send_data += 2;
+ }
+ net_write(str_none, sizeof(str_none));
+ printsub('>', &str_none[2], sizeof(str_none) - 2);
+ if (auth_debug_mode)
+ printf(">>>%s: Sent failure message\r\n", Name);
+ auth_finished(0, AUTH_REJECT);
+#ifdef KANNAN
+ /*
+ * We requested strong authentication, however no mechanisms worked.
+ * Therefore, exit on client end.
+ */
+ printf("Unable to securely authenticate user ... exit\n");
+ exit(0);
+#endif /* KANNAN */
+}
+
+ void
+auth_send_retry()
+{
+ /*
+ * if auth_send_cnt <= 0 then auth_send will end up rejecting
+ * the authentication and informing the other side of this.
+ */
+ auth_send(auth_send_data, auth_send_cnt);
+}
+
+ void
+auth_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+
+ if (cnt < 2)
+ return;
+
+ if (data[0] == AUTHTYPE_NULL) {
+ auth_finished(0, AUTH_REJECT);
+ return;
+ }
+
+ if (ap = findauthenticator(data[0], data[1])) {
+ if (ap->is)
+ (*ap->is)(ap, data+2, cnt-2);
+ } else if (auth_debug_mode)
+ printf(">>>%s: Invalid authentication in IS: %d\r\n",
+ Name, *data);
+}
+
+ void
+auth_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+
+ if (cnt < 2)
+ return;
+
+ if (ap = findauthenticator(data[0], data[1])) {
+ if (ap->reply)
+ (*ap->reply)(ap, data+2, cnt-2);
+ } else if (auth_debug_mode)
+ printf(">>>%s: Invalid authentication in SEND: %d\r\n",
+ Name, *data);
+}
+
+ void
+auth_name(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Authenticator *ap;
+ unsigned char savename[256];
+
+ if (cnt < 1) {
+ if (auth_debug_mode)
+ printf(">>>%s: Empty name in NAME\r\n", Name);
+ return;
+ }
+ if (cnt > sizeof(savename) - 1) {
+ if (auth_debug_mode)
+ printf(">>>%s: Name in NAME (%d) exceeds %d length\r\n",
+ Name, cnt, sizeof(savename)-1);
+ return;
+ }
+ bcopy((void *)data, (void *)savename, cnt);
+ savename[cnt] = '\0'; /* Null terminate */
+ if (auth_debug_mode)
+ printf(">>>%s: Got NAME [%s]\r\n", Name, savename);
+ auth_encrypt_user(savename);
+}
+
+ int
+auth_sendname(cp, len)
+ unsigned char *cp;
+ int len;
+{
+ static unsigned char str_request[256+6]
+ = { IAC, SB, TELOPT_AUTHENTICATION, TELQUAL_NAME, };
+ register unsigned char *e = str_request + 4;
+ register unsigned char *ee = &str_request[sizeof(str_request)-2];
+
+ while (--len >= 0) {
+ if ((*e++ = *cp++) == IAC)
+ *e++ = IAC;
+ if (e >= ee)
+ return(0);
+ }
+ *e++ = IAC;
+ *e++ = SE;
+ net_write(str_request, e - str_request);
+ printsub('>', &str_request[2], e - &str_request[2]);
+ return(1);
+}
+
+ void
+auth_finished(ap, result)
+ Authenticator *ap;
+ int result;
+{
+ if (!(authenticated = ap))
+ authenticated = &NoAuth;
+ validuser = result;
+}
+
+ /* ARGSUSED */
+ static void
+auth_intr(sig)
+ int sig;
+{
+ auth_finished(0, AUTH_REJECT);
+}
+
+ int
+auth_wait(name)
+ char *name;
+{
+ if (auth_debug_mode)
+ printf(">>>%s: in auth_wait.\r\n", Name);
+
+ if (Server && !authenticating)
+ return(0);
+
+ (void) signal(SIGALRM, auth_intr);
+ alarm(30);
+ while (!authenticated)
+ if (telnet_spin())
+ break;
+ alarm(0);
+ (void) signal(SIGALRM, SIG_DFL);
+
+ /*
+ * Now check to see if the user is valid or not
+ */
+ if (!authenticated || authenticated == &NoAuth)
+ return(AUTH_REJECT);
+
+ if (validuser == AUTH_VALID)
+ validuser = AUTH_USER;
+
+ if (authenticated->status)
+ validuser = (*authenticated->status)(authenticated,
+ name, validuser);
+ return(validuser);
+}
+
+ void
+auth_debug(mode)
+ int mode;
+{
+ auth_debug_mode = mode;
+}
+
+ void
+auth_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ Authenticator *ap;
+
+ if ((ap = findauthenticator(data[1], data[2])) && ap->printsub)
+ (*ap->printsub)(data, cnt, buf, buflen);
+ else
+ auth_gen_printsub(data, cnt, buf, buflen);
+}
+
+ void
+auth_gen_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ register unsigned char *cp;
+ unsigned char tbuf[16];
+
+ cnt -= 3;
+ data += 3;
+ buf[buflen-1] = '\0';
+ buf[buflen-2] = '*';
+ buflen -= 2;
+ for (; cnt > 0; cnt--, data++) {
+ sprintf((char *)tbuf, " %d", *data);
+ for (cp = tbuf; *cp && buflen > 0; --buflen)
+ *buf++ = *cp++;
+ if (buflen <= 0)
+ return;
+ }
+ *buf = '\0';
+}
+#endif
diff --git a/secure/lib/libtelnet/auth.h b/secure/lib/libtelnet/auth.h
new file mode 100644
index 000000000000..615e8a07b894
--- /dev/null
+++ b/secure/lib/libtelnet/auth.h
@@ -0,0 +1,87 @@
+/*-
+ * 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.
+ *
+ * @(#)auth.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __AUTH__
+#define __AUTH__
+
+#define AUTH_REJECT 0 /* Rejected */
+#define AUTH_UNKNOWN 1 /* We don't know who he is, but he's okay */
+#define AUTH_OTHER 2 /* We know him, but not his name */
+#define AUTH_USER 3 /* We know he name */
+#define AUTH_VALID 4 /* We know him, and he needs no password */
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+typedef struct XauthP {
+ int type;
+ int way;
+ int (*init) P((struct XauthP *, int));
+ int (*send) P((struct XauthP *));
+ void (*is) P((struct XauthP *, unsigned char *, int));
+ void (*reply) P((struct XauthP *, unsigned char *, int));
+ int (*status) P((struct XauthP *, char *, int));
+ void (*printsub) P((unsigned char *, int, unsigned char *, int));
+} Authenticator;
+
+#include "auth-proto.h"
+
+extern auth_debug_mode;
+#endif
diff --git a/secure/lib/libtelnet/enc-proto.h b/secure/lib/libtelnet/enc-proto.h
new file mode 100644
index 000000000000..2e30908f292d
--- /dev/null
+++ b/secure/lib/libtelnet/enc-proto.h
@@ -0,0 +1,125 @@
+/*-
+ * 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.
+ *
+ * @(#)enc-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+#ifdef ENCRYPTION
+void encrypt_init P((char *, int));
+Encryptions *findencryption P((int));
+void encrypt_send_supprt P((void));
+void encrypt_auto P((int));
+void decrypt_auto P((int));
+void encrypt_is P((unsigned char *, int));
+void encrypt_reply P((unsigned char *, int));
+void encrypt_start_input P((int));
+void encrypt_session_key P((Session_Key *, int));
+void encrypt_end_input P((void));
+void encrypt_start_output P((int));
+void encrypt_end_output P((void));
+void encrypt_send_request_start P((void));
+void encrypt_send_request_end P((void));
+void encrypt_send_end P((void));
+void encrypt_wait P((void));
+void encrypt_send_support P((void));
+void encrypt_send_keyid P((int, unsigned char *, int, int));
+int net_write P((unsigned char *, int));
+
+#ifdef TELENTD
+void encrypt_wait P((void));
+#else
+int encrypt_cmd P((int, char **));
+void encrypt_display P((void));
+#endif
+
+void krbdes_encrypt P((unsigned char *, int));
+int krbdes_decrypt P((int));
+int krbdes_is P((unsigned char *, int));
+int krbdes_reply P((unsigned char *, int));
+void krbdes_init P((int));
+int krbdes_start P((int, int));
+void krbdes_session P((Session_Key *, int));
+void krbdes_printsub P((unsigned char *, int, unsigned char *, int));
+
+void cfb64_encrypt P((unsigned char *, int));
+int cfb64_decrypt P((int));
+void cfb64_init P((int));
+int cfb64_start P((int, int));
+int cfb64_is P((unsigned char *, int));
+int cfb64_reply P((unsigned char *, int));
+void cfb64_session P((Session_Key *, int));
+int cfb64_keyid P((int, unsigned char *, int *));
+void cfb64_printsub P((unsigned char *, int, unsigned char *, int));
+
+void ofb64_encrypt P((unsigned char *, int));
+int ofb64_decrypt P((int));
+void ofb64_init P((int));
+int ofb64_start P((int, int));
+int ofb64_is P((unsigned char *, int));
+int ofb64_reply P((unsigned char *, int));
+void ofb64_session P((Session_Key *, int));
+int ofb64_keyid P((int, unsigned char *, int *));
+void ofb64_printsub P((unsigned char *, int, unsigned char *, int));
+
+int des_new_random_key P((Block));
+void des_set_random_generator_seed P((Block));
+void des_key_sched P((Block, Schedule));
+void des_ecb_encrypt P((Block, Block, Schedule, int));
+int des_string_to_key P((char *, Block));
+#endif /* ENCRYPTION */
diff --git a/secure/lib/libtelnet/enc_des.c b/secure/lib/libtelnet/enc_des.c
new file mode 100644
index 000000000000..15e8521c1714
--- /dev/null
+++ b/secure/lib/libtelnet/enc_des.c
@@ -0,0 +1,724 @@
+/*-
+ * 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[] = "@(#)enc_des.c 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+#ifdef ENCRYPTION
+# ifdef AUTHENTICATION
+# ifdef DES_ENCRYPTION
+#include <arpa/telnet.h>
+#include <stdio.h>
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+
+#include "encrypt.h"
+#include "key-proto.h"
+#include "misc-proto.h"
+
+extern encrypt_debug_mode;
+
+#define CFB 0
+#define OFB 1
+
+#define NO_SEND_IV 1
+#define NO_RECV_IV 2
+#define NO_KEYID 4
+#define IN_PROGRESS (NO_SEND_IV|NO_RECV_IV|NO_KEYID)
+#define SUCCESS 0
+#define FAILED -1
+
+
+struct fb {
+ Block krbdes_key;
+ Schedule krbdes_sched;
+ Block temp_feed;
+ unsigned char fb_feed[64];
+ int need_start;
+ int state[2];
+ int keyid[2];
+ int once;
+ struct stinfo {
+ Block str_output;
+ Block str_feed;
+ Block str_iv;
+ Block str_ikey;
+ Schedule str_sched;
+ int str_index;
+ int str_flagshift;
+ } streams[2];
+};
+
+static struct fb fb[2];
+
+struct keyidlist {
+ char *keyid;
+ int keyidlen;
+ char *key;
+ int keylen;
+ int flags;
+} keyidlist [] = {
+ { "\0", 1, 0, 0, 0 }, /* default key of zero */
+ { 0, 0, 0, 0, 0 }
+};
+
+#define KEYFLAG_MASK 03
+
+#define KEYFLAG_NOINIT 00
+#define KEYFLAG_INIT 01
+#define KEYFLAG_OK 02
+#define KEYFLAG_BAD 03
+
+#define KEYFLAG_SHIFT 2
+
+#define SHIFT_VAL(a,b) (KEYFLAG_SHIFT*((a)+((b)*2)))
+
+#define FB64_IV 1
+#define FB64_IV_OK 2
+#define FB64_IV_BAD 3
+
+
+void fb64_stream_iv P((Block, struct stinfo *));
+void fb64_init P((struct fb *));
+static int fb64_start P((struct fb *, int, int));
+int fb64_is P((unsigned char *, int, struct fb *));
+int fb64_reply P((unsigned char *, int, struct fb *));
+static void fb64_session P((Session_Key *, int, struct fb *));
+void fb64_stream_key P((Block, struct stinfo *));
+int fb64_keyid P((int, unsigned char *, int *, struct fb *));
+
+ void
+cfb64_init(server)
+ int server;
+{
+ fb64_init(&fb[CFB]);
+ fb[CFB].fb_feed[4] = ENCTYPE_DES_CFB64;
+ fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, CFB);
+ fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, CFB);
+}
+
+ void
+ofb64_init(server)
+ int server;
+{
+ fb64_init(&fb[OFB]);
+ fb[OFB].fb_feed[4] = ENCTYPE_DES_OFB64;
+ fb[CFB].streams[0].str_flagshift = SHIFT_VAL(0, OFB);
+ fb[CFB].streams[1].str_flagshift = SHIFT_VAL(1, OFB);
+}
+
+ void
+fb64_init(fbp)
+ register struct fb *fbp;
+{
+ bzero((void *)fbp, sizeof(*fbp));
+ fbp->state[0] = fbp->state[1] = FAILED;
+ fbp->fb_feed[0] = IAC;
+ fbp->fb_feed[1] = SB;
+ fbp->fb_feed[2] = TELOPT_ENCRYPT;
+ fbp->fb_feed[3] = ENCRYPT_IS;
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ * 2: Not yet. Other things (like getting the key from
+ * Kerberos) have to happen before we can continue.
+ */
+ int
+cfb64_start(dir, server)
+ int dir;
+ int server;
+{
+ return(fb64_start(&fb[CFB], dir, server));
+}
+ int
+ofb64_start(dir, server)
+ int dir;
+ int server;
+{
+ return(fb64_start(&fb[OFB], dir, server));
+}
+
+ static int
+fb64_start(fbp, dir, server)
+ struct fb *fbp;
+ int dir;
+ int server;
+{
+ Block b;
+ int x;
+ unsigned char *p;
+ register int state;
+
+ switch (dir) {
+ case DIR_DECRYPT:
+ /*
+ * This is simply a request to have the other side
+ * start output (our input). He will negotiate an
+ * IV so we need not look for it.
+ */
+ state = fbp->state[dir-1];
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ break;
+
+ case DIR_ENCRYPT:
+ state = fbp->state[dir-1];
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ else if ((state & NO_SEND_IV) == 0)
+ break;
+
+ if (!VALIDKEY(fbp->krbdes_key)) {
+ fbp->need_start = 1;
+ break;
+ }
+ state &= ~NO_SEND_IV;
+ state |= NO_RECV_IV;
+ if (encrypt_debug_mode)
+ printf("Creating new feed\r\n");
+ /*
+ * Create a random feed and send it over.
+ */
+ des_new_random_key(fbp->temp_feed);
+ des_ecb_encrypt(fbp->temp_feed, fbp->temp_feed,
+ fbp->krbdes_sched, 1);
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_IS;
+ p++;
+ *p++ = FB64_IV;
+ for (x = 0; x < sizeof(Block); ++x) {
+ if ((*p++ = fbp->temp_feed[x]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+ break;
+ default:
+ return(FAILED);
+ }
+ return(fbp->state[dir-1] = state);
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ */
+ int
+cfb64_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_is(data, cnt, &fb[CFB]));
+}
+ int
+ofb64_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_is(data, cnt, &fb[OFB]));
+}
+
+ int
+fb64_is(data, cnt, fbp)
+ unsigned char *data;
+ int cnt;
+ struct fb *fbp;
+{
+ int x;
+ unsigned char *p;
+ Block b;
+ register int state = fbp->state[DIR_DECRYPT-1];
+
+ if (cnt-- < 1)
+ goto failure;
+
+ switch (*data++) {
+ case FB64_IV:
+ if (cnt != sizeof(Block)) {
+ if (encrypt_debug_mode)
+ printf("CFB64: initial vector failed on size\r\n");
+ state = FAILED;
+ goto failure;
+ }
+
+ if (encrypt_debug_mode)
+ printf("CFB64: initial vector received\r\n");
+
+ if (encrypt_debug_mode)
+ printf("Initializing Decrypt stream\r\n");
+
+ fb64_stream_iv((void *)data, &fbp->streams[DIR_DECRYPT-1]);
+
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_REPLY;
+ p++;
+ *p++ = FB64_IV_OK;
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+
+ state = fbp->state[DIR_DECRYPT-1] = IN_PROGRESS;
+ break;
+
+ default:
+ if (encrypt_debug_mode) {
+ printf("Unknown option type: %d\r\n", *(data-1));
+ printd(data, cnt);
+ printf("\r\n");
+ }
+ /* FALL THROUGH */
+ failure:
+ /*
+ * We failed. Send an FB64_IV_BAD option
+ * to the other side so it will know that
+ * things failed.
+ */
+ p = fbp->fb_feed + 3;
+ *p++ = ENCRYPT_REPLY;
+ p++;
+ *p++ = FB64_IV_BAD;
+ *p++ = IAC;
+ *p++ = SE;
+ printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);
+ net_write(fbp->fb_feed, p - fbp->fb_feed);
+
+ break;
+ }
+ return(fbp->state[DIR_DECRYPT-1] = state);
+}
+
+/*
+ * Returns:
+ * -1: some error. Negotiation is done, encryption not ready.
+ * 0: Successful, initial negotiation all done.
+ * 1: successful, negotiation not done yet.
+ */
+ int
+cfb64_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_reply(data, cnt, &fb[CFB]));
+}
+ int
+ofb64_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ return(fb64_reply(data, cnt, &fb[OFB]));
+}
+
+
+ int
+fb64_reply(data, cnt, fbp)
+ unsigned char *data;
+ int cnt;
+ struct fb *fbp;
+{
+ int x;
+ unsigned char *p;
+ Block b;
+ register int state = fbp->state[DIR_ENCRYPT-1];
+
+ if (cnt-- < 1)
+ goto failure;
+
+ switch (*data++) {
+ case FB64_IV_OK:
+ fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
+ if (state == FAILED)
+ state = IN_PROGRESS;
+ state &= ~NO_RECV_IV;
+ encrypt_send_keyid(DIR_ENCRYPT, (unsigned char *)"\0", 1, 1);
+ break;
+
+ case FB64_IV_BAD:
+ bzero(fbp->temp_feed, sizeof(Block));
+ fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);
+ state = FAILED;
+ break;
+
+ default:
+ if (encrypt_debug_mode) {
+ printf("Unknown option type: %d\r\n", data[-1]);
+ printd(data, cnt);
+ printf("\r\n");
+ }
+ /* FALL THROUGH */
+ failure:
+ state = FAILED;
+ break;
+ }
+ return(fbp->state[DIR_ENCRYPT-1] = state);
+}
+
+ void
+cfb64_session(key, server)
+ Session_Key *key;
+ int server;
+{
+ fb64_session(key, server, &fb[CFB]);
+}
+
+ void
+ofb64_session(key, server)
+ Session_Key *key;
+ int server;
+{
+ fb64_session(key, server, &fb[OFB]);
+}
+
+ static void
+fb64_session(key, server, fbp)
+ Session_Key *key;
+ int server;
+ struct fb *fbp;
+{
+
+ if (!key || key->type != SK_DES) {
+ if (encrypt_debug_mode)
+ printf("Can't set krbdes's session key (%d != %d)\r\n",
+ key ? key->type : -1, SK_DES);
+ return;
+ }
+ bcopy((void *)key->data, (void *)fbp->krbdes_key, sizeof(Block));
+
+ fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_ENCRYPT-1]);
+ fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]);
+
+ if (fbp->once == 0) {
+ des_set_random_generator_seed(fbp->krbdes_key);
+ fbp->once = 1;
+ }
+ des_key_sched(fbp->krbdes_key, fbp->krbdes_sched);
+ /*
+ * Now look to see if krbdes_start() was was waiting for
+ * the key to show up. If so, go ahead an call it now
+ * that we have the key.
+ */
+ if (fbp->need_start) {
+ fbp->need_start = 0;
+ fb64_start(fbp, DIR_ENCRYPT, server);
+ }
+}
+
+/*
+ * We only accept a keyid of 0. If we get a keyid of
+ * 0, then mark the state as SUCCESS.
+ */
+ int
+cfb64_keyid(dir, kp, lenp)
+ int dir, *lenp;
+ unsigned char *kp;
+{
+ return(fb64_keyid(dir, kp, lenp, &fb[CFB]));
+}
+
+ int
+ofb64_keyid(dir, kp, lenp)
+ int dir, *lenp;
+ unsigned char *kp;
+{
+ return(fb64_keyid(dir, kp, lenp, &fb[OFB]));
+}
+
+ int
+fb64_keyid(dir, kp, lenp, fbp)
+ int dir, *lenp;
+ unsigned char *kp;
+ struct fb *fbp;
+{
+ register int state = fbp->state[dir-1];
+
+ if (*lenp != 1 || (*kp != '\0')) {
+ *lenp = 0;
+ return(state);
+ }
+
+ if (state == FAILED)
+ state = IN_PROGRESS;
+
+ state &= ~NO_KEYID;
+
+ return(fbp->state[dir-1] = state);
+}
+
+ void
+fb64_printsub(data, cnt, buf, buflen, type)
+ unsigned char *data, *buf, *type;
+ int cnt, buflen;
+{
+ char lbuf[32];
+ register int i;
+ char *cp;
+
+ buf[buflen-1] = '\0'; /* make sure it's NULL terminated */
+ buflen -= 1;
+
+ switch(data[2]) {
+ case FB64_IV:
+ sprintf(lbuf, "%s_IV", type);
+ cp = lbuf;
+ goto common;
+
+ case FB64_IV_OK:
+ sprintf(lbuf, "%s_IV_OK", type);
+ cp = lbuf;
+ goto common;
+
+ case FB64_IV_BAD:
+ sprintf(lbuf, "%s_IV_BAD", type);
+ cp = lbuf;
+ goto common;
+
+ default:
+ sprintf(lbuf, " %d (unknown)", data[2]);
+ cp = lbuf;
+ common:
+ for (; (buflen > 0) && (*buf = *cp++); buf++)
+ buflen--;
+ for (i = 3; i < cnt; i++) {
+ sprintf(lbuf, " %d", data[i]);
+ for (cp = lbuf; (buflen > 0) && (*buf = *cp++); buf++)
+ buflen--;
+ }
+ break;
+ }
+}
+
+ void
+cfb64_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ fb64_printsub(data, cnt, buf, buflen, "CFB64");
+}
+
+ void
+ofb64_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ fb64_printsub(data, cnt, buf, buflen, "OFB64");
+}
+
+ void
+fb64_stream_iv(seed, stp)
+ Block seed;
+ register struct stinfo *stp;
+{
+
+ bcopy((void *)seed, (void *)stp->str_iv, sizeof(Block));
+ bcopy((void *)seed, (void *)stp->str_output, sizeof(Block));
+
+ des_key_sched(stp->str_ikey, stp->str_sched);
+
+ stp->str_index = sizeof(Block);
+}
+
+ void
+fb64_stream_key(key, stp)
+ Block key;
+ register struct stinfo *stp;
+{
+ bcopy((void *)key, (void *)stp->str_ikey, sizeof(Block));
+ des_key_sched(key, stp->str_sched);
+
+ bcopy((void *)stp->str_iv, (void *)stp->str_output, sizeof(Block));
+
+ stp->str_index = sizeof(Block);
+}
+
+/*
+ * DES 64 bit Cipher Feedback
+ *
+ * key --->+-----+
+ * +->| DES |--+
+ * | +-----+ |
+ * | v
+ * INPUT --(--------->(+)+---> DATA
+ * | |
+ * +-------------+
+ *
+ *
+ * Given:
+ * iV: Initial vector, 64 bits (8 bytes) long.
+ * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
+ * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
+ *
+ * V0 = DES(iV, key)
+ * On = Dn ^ Vn
+ * V(n+1) = DES(On, key)
+ */
+
+ void
+cfb64_encrypt(s, c)
+ register unsigned char *s;
+ int c;
+{
+ register struct stinfo *stp = &fb[CFB].streams[DIR_ENCRYPT-1];
+ register int index;
+
+ index = stp->str_index;
+ while (c-- > 0) {
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_output, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ index = 0;
+ }
+
+ /* On encryption, we store (feed ^ data) which is cypher */
+ *s = stp->str_output[index] = (stp->str_feed[index] ^ *s);
+ s++;
+ index++;
+ }
+ stp->str_index = index;
+}
+
+ int
+cfb64_decrypt(data)
+ int data;
+{
+ register struct stinfo *stp = &fb[CFB].streams[DIR_DECRYPT-1];
+ int index;
+
+ if (data == -1) {
+ /*
+ * Back up one byte. It is assumed that we will
+ * never back up more than one byte. If we do, this
+ * may or may not work.
+ */
+ if (stp->str_index)
+ --stp->str_index;
+ return(0);
+ }
+
+ index = stp->str_index++;
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_output, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ stp->str_index = 1; /* Next time will be 1 */
+ index = 0; /* But now use 0 */
+ }
+
+ /* On decryption we store (data) which is cypher. */
+ stp->str_output[index] = data;
+ return(data ^ stp->str_feed[index]);
+}
+
+/*
+ * DES 64 bit Output Feedback
+ *
+ * key --->+-----+
+ * +->| DES |--+
+ * | +-----+ |
+ * +-----------+
+ * v
+ * INPUT -------->(+) ----> DATA
+ *
+ * Given:
+ * iV: Initial vector, 64 bits (8 bytes) long.
+ * Dn: the nth chunk of 64 bits (8 bytes) of data to encrypt (decrypt).
+ * On: the nth chunk of 64 bits (8 bytes) of encrypted (decrypted) output.
+ *
+ * V0 = DES(iV, key)
+ * V(n+1) = DES(Vn, key)
+ * On = Dn ^ Vn
+ */
+ void
+ofb64_encrypt(s, c)
+ register unsigned char *s;
+ int c;
+{
+ register struct stinfo *stp = &fb[OFB].streams[DIR_ENCRYPT-1];
+ register int index;
+
+ index = stp->str_index;
+ while (c-- > 0) {
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_feed, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ index = 0;
+ }
+ *s++ ^= stp->str_feed[index];
+ index++;
+ }
+ stp->str_index = index;
+}
+
+ int
+ofb64_decrypt(data)
+ int data;
+{
+ register struct stinfo *stp = &fb[OFB].streams[DIR_DECRYPT-1];
+ int index;
+
+ if (data == -1) {
+ /*
+ * Back up one byte. It is assumed that we will
+ * never back up more than one byte. If we do, this
+ * may or may not work.
+ */
+ if (stp->str_index)
+ --stp->str_index;
+ return(0);
+ }
+
+ index = stp->str_index++;
+ if (index == sizeof(Block)) {
+ Block b;
+ des_ecb_encrypt(stp->str_feed, b, stp->str_sched, 1);
+ bcopy((void *)b, (void *)stp->str_feed, sizeof(Block));
+ stp->str_index = 1; /* Next time will be 1 */
+ index = 0; /* But now use 0 */
+ }
+
+ return(data ^ stp->str_feed[index]);
+}
+# endif /* DES_ENCRYPTION */
+# endif /* AUTHENTICATION */
+#endif /* ENCRYPTION */
diff --git a/secure/lib/libtelnet/encrypt.c b/secure/lib/libtelnet/encrypt.c
new file mode 100644
index 000000000000..8662473f3256
--- /dev/null
+++ b/secure/lib/libtelnet/encrypt.c
@@ -0,0 +1,999 @@
+/*-
+ * 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[] = "@(#)encrypt.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 ENCRYPTION
+
+#define ENCRYPT_NAMES
+#include <arpa/telnet.h>
+
+#include "encrypt.h"
+#include "misc.h"
+
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+#ifdef NO_STRING_H
+#include <strings.h>
+#else
+#include <string.h>
+#endif
+
+/*
+ * These functions pointers point to the current routines
+ * for encrypting and decrypting data.
+ */
+void (*encrypt_output) P((unsigned char *, int));
+int (*decrypt_input) P((int));
+
+int encrypt_debug_mode = 0;
+static int decrypt_mode = 0;
+static int encrypt_mode = 0;
+static int encrypt_verbose = 0;
+static int autoencrypt = 0;
+static int autodecrypt = 0;
+static int havesessionkey = 0;
+static int Server = 0;
+static char *Name = "Noname";
+
+#define typemask(x) ((x) > 0 ? 1 << ((x)-1) : 0)
+
+static long i_support_encrypt = typemask(ENCTYPE_DES_CFB64)
+ | typemask(ENCTYPE_DES_OFB64);
+static long i_support_decrypt = typemask(ENCTYPE_DES_CFB64)
+ | typemask(ENCTYPE_DES_OFB64);
+static long i_wont_support_encrypt = 0;
+static long i_wont_support_decrypt = 0;
+#define I_SUPPORT_ENCRYPT (i_support_encrypt & ~i_wont_support_encrypt)
+#define I_SUPPORT_DECRYPT (i_support_decrypt & ~i_wont_support_decrypt)
+
+static long remote_supports_encrypt = 0;
+static long remote_supports_decrypt = 0;
+
+static Encryptions encryptions[] = {
+#ifdef DES_ENCRYPTION
+ { "DES_CFB64", ENCTYPE_DES_CFB64,
+ cfb64_encrypt,
+ cfb64_decrypt,
+ cfb64_init,
+ cfb64_start,
+ cfb64_is,
+ cfb64_reply,
+ cfb64_session,
+ cfb64_keyid,
+ cfb64_printsub },
+ { "DES_OFB64", ENCTYPE_DES_OFB64,
+ ofb64_encrypt,
+ ofb64_decrypt,
+ ofb64_init,
+ ofb64_start,
+ ofb64_is,
+ ofb64_reply,
+ ofb64_session,
+ ofb64_keyid,
+ ofb64_printsub },
+#endif /* DES_ENCRYPTION */
+ { 0, },
+};
+
+static unsigned char str_send[64] = { IAC, SB, TELOPT_ENCRYPT,
+ ENCRYPT_SUPPORT };
+static unsigned char str_suplen = 0;
+static unsigned char str_start[72] = { IAC, SB, TELOPT_ENCRYPT };
+static unsigned char str_end[] = { IAC, SB, TELOPT_ENCRYPT, 0, IAC, SE };
+
+ Encryptions *
+findencryption(type)
+ int type;
+{
+ Encryptions *ep = encryptions;
+
+ if (!(I_SUPPORT_ENCRYPT & remote_supports_decrypt & typemask(type)))
+ return(0);
+ while (ep->type && ep->type != type)
+ ++ep;
+ return(ep->type ? ep : 0);
+}
+
+ Encryptions *
+finddecryption(type)
+ int type;
+{
+ Encryptions *ep = encryptions;
+
+ if (!(I_SUPPORT_DECRYPT & remote_supports_encrypt & typemask(type)))
+ return(0);
+ while (ep->type && ep->type != type)
+ ++ep;
+ return(ep->type ? ep : 0);
+}
+
+#define MAXKEYLEN 64
+
+static struct key_info {
+ unsigned char keyid[MAXKEYLEN];
+ int keylen;
+ int dir;
+ int *modep;
+ Encryptions *(*getcrypt)();
+} ki[2] = {
+ { { 0 }, 0, DIR_ENCRYPT, &encrypt_mode, findencryption },
+ { { 0 }, 0, DIR_DECRYPT, &decrypt_mode, finddecryption },
+};
+
+ void
+encrypt_init(name, server)
+ char *name;
+ int server;
+{
+ Encryptions *ep = encryptions;
+
+ Name = name;
+ Server = server;
+ i_support_encrypt = i_support_decrypt = 0;
+ remote_supports_encrypt = remote_supports_decrypt = 0;
+ encrypt_mode = 0;
+ decrypt_mode = 0;
+ encrypt_output = 0;
+ decrypt_input = 0;
+#ifdef notdef
+ encrypt_verbose = !server;
+#endif
+
+ str_suplen = 4;
+
+ while (ep->type) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: I will support %s\r\n",
+ Name, ENCTYPE_NAME(ep->type));
+ i_support_encrypt |= typemask(ep->type);
+ i_support_decrypt |= typemask(ep->type);
+ if ((i_wont_support_decrypt & typemask(ep->type)) == 0)
+ if ((str_send[str_suplen++] = ep->type) == IAC)
+ str_send[str_suplen++] = IAC;
+ if (ep->init)
+ (*ep->init)(Server);
+ ++ep;
+ }
+ str_send[str_suplen++] = IAC;
+ str_send[str_suplen++] = SE;
+}
+
+ void
+encrypt_list_types()
+{
+ Encryptions *ep = encryptions;
+
+ printf("Valid encryption types:\n");
+ while (ep->type) {
+ printf("\t%s (%d)\r\n", ENCTYPE_NAME(ep->type), ep->type);
+ ++ep;
+ }
+}
+
+ int
+EncryptEnable(type, mode)
+ char *type, *mode;
+{
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt enable <type> [input|output]\n");
+ encrypt_list_types();
+ return(0);
+ }
+ if (EncryptType(type, mode))
+ return(EncryptStart(mode));
+ return(0);
+}
+
+ int
+EncryptDisable(type, mode)
+ char *type, *mode;
+{
+ register Encryptions *ep;
+ int ret = 0;
+
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt disable <type> [input|output]\n");
+ encrypt_list_types();
+ } else if ((ep = (Encryptions *)genget(type, encryptions,
+ sizeof(Encryptions))) == 0) {
+ printf("%s: invalid encryption type\n", type);
+ } else if (Ambiguous(ep)) {
+ printf("Ambiguous type '%s'\n", type);
+ } else {
+ if ((mode == 0) || (isprefix(mode, "input") ? 1 : 0)) {
+ if (decrypt_mode == ep->type)
+ EncryptStopInput();
+ i_wont_support_decrypt |= typemask(ep->type);
+ ret = 1;
+ }
+ if ((mode == 0) || (isprefix(mode, "output"))) {
+ if (encrypt_mode == ep->type)
+ EncryptStopOutput();
+ i_wont_support_encrypt |= typemask(ep->type);
+ ret = 1;
+ }
+ if (ret == 0)
+ printf("%s: invalid encryption mode\n", mode);
+ }
+ return(ret);
+}
+
+ int
+EncryptType(type, mode)
+ char *type;
+ char *mode;
+{
+ register Encryptions *ep;
+ int ret = 0;
+
+ if (isprefix(type, "help") || isprefix(type, "?")) {
+ printf("Usage: encrypt type <type> [input|output]\n");
+ encrypt_list_types();
+ } else if ((ep = (Encryptions *)genget(type, encryptions,
+ sizeof(Encryptions))) == 0) {
+ printf("%s: invalid encryption type\n", type);
+ } else if (Ambiguous(ep)) {
+ printf("Ambiguous type '%s'\n", type);
+ } else {
+ if ((mode == 0) || isprefix(mode, "input")) {
+ decrypt_mode = ep->type;
+ i_wont_support_decrypt &= ~typemask(ep->type);
+ ret = 1;
+ }
+ if ((mode == 0) || isprefix(mode, "output")) {
+ encrypt_mode = ep->type;
+ i_wont_support_encrypt &= ~typemask(ep->type);
+ ret = 1;
+ }
+ if (ret == 0)
+ printf("%s: invalid encryption mode\n", mode);
+ }
+ return(ret);
+}
+
+ int
+EncryptStart(mode)
+ char *mode;
+{
+ register int ret = 0;
+ if (mode) {
+ if (isprefix(mode, "input"))
+ return(EncryptStartInput());
+ if (isprefix(mode, "output"))
+ return(EncryptStartOutput());
+ if (isprefix(mode, "help") || isprefix(mode, "?")) {
+ printf("Usage: encrypt start [input|output]\n");
+ return(0);
+ }
+ printf("%s: invalid encryption mode 'encrypt start ?' for help\n", mode);
+ return(0);
+ }
+ ret += EncryptStartInput();
+ ret += EncryptStartOutput();
+ return(ret);
+}
+
+ int
+EncryptStartInput()
+{
+ if (decrypt_mode) {
+ encrypt_send_request_start();
+ return(1);
+ }
+ printf("No previous decryption mode, decryption not enabled\r\n");
+ return(0);
+}
+
+ int
+EncryptStartOutput()
+{
+ if (encrypt_mode) {
+ encrypt_start_output(encrypt_mode);
+ return(1);
+ }
+ printf("No previous encryption mode, encryption not enabled\r\n");
+ return(0);
+}
+
+ int
+EncryptStop(mode)
+ char *mode;
+{
+ int ret = 0;
+ if (mode) {
+ if (isprefix(mode, "input"))
+ return(EncryptStopInput());
+ if (isprefix(mode, "output"))
+ return(EncryptStopOutput());
+ if (isprefix(mode, "help") || isprefix(mode, "?")) {
+ printf("Usage: encrypt stop [input|output]\n");
+ return(0);
+ }
+ printf("%s: invalid encryption mode 'encrypt stop ?' for help\n", mode);
+ return(0);
+ }
+ ret += EncryptStopInput();
+ ret += EncryptStopOutput();
+ return(ret);
+}
+
+ int
+EncryptStopInput()
+{
+ encrypt_send_request_end();
+ return(1);
+}
+
+ int
+EncryptStopOutput()
+{
+ encrypt_send_end();
+ return(1);
+}
+
+ void
+encrypt_display()
+{
+ if (encrypt_output)
+ printf("Currently encrypting output with %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ if (decrypt_input)
+ printf("Currently decrypting input with %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+}
+
+ int
+EncryptStatus()
+{
+ if (encrypt_output)
+ printf("Currently encrypting output with %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ else if (encrypt_mode) {
+ printf("Currently output is clear text.\r\n");
+ printf("Last encryption mode was %s\r\n",
+ ENCTYPE_NAME(encrypt_mode));
+ }
+ if (decrypt_input) {
+ printf("Currently decrypting input with %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ } else if (decrypt_mode) {
+ printf("Currently input is clear text.\r\n");
+ printf("Last decryption mode was %s\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ }
+ return 1;
+}
+
+ void
+encrypt_send_support()
+{
+ if (str_suplen) {
+ /*
+ * If the user has requested that decryption start
+ * immediatly, then send a "REQUEST START" before
+ * we negotiate the type.
+ */
+ if (!Server && autodecrypt)
+ encrypt_send_request_start();
+ net_write(str_send, str_suplen);
+ printsub('>', &str_send[2], str_suplen - 2);
+ str_suplen = 0;
+ }
+}
+
+ int
+EncryptDebug(on)
+ int on;
+{
+ if (on < 0)
+ encrypt_debug_mode ^= 1;
+ else
+ encrypt_debug_mode = on;
+ printf("Encryption debugging %s\r\n",
+ encrypt_debug_mode ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+EncryptVerbose(on)
+ int on;
+{
+ if (on < 0)
+ encrypt_verbose ^= 1;
+ else
+ encrypt_verbose = on;
+ printf("Encryption %s verbose\r\n",
+ encrypt_verbose ? "is" : "is not");
+ return(1);
+}
+
+ int
+EncryptAutoEnc(on)
+ int on;
+{
+ encrypt_auto(on);
+ printf("Automatic encryption of output is %s\r\n",
+ autoencrypt ? "enabled" : "disabled");
+ return(1);
+}
+
+ int
+EncryptAutoDec(on)
+ int on;
+{
+ decrypt_auto(on);
+ printf("Automatic decryption of input is %s\r\n",
+ autodecrypt ? "enabled" : "disabled");
+ return(1);
+}
+
+/*
+ * Called when ENCRYPT SUPPORT is received.
+ */
+ void
+encrypt_support(typelist, cnt)
+ unsigned char *typelist;
+ int cnt;
+{
+ register int type, use_type = 0;
+ Encryptions *ep;
+
+ /*
+ * Forget anything the other side has previously told us.
+ */
+ remote_supports_decrypt = 0;
+
+ while (cnt-- > 0) {
+ type = *typelist++;
+ if (encrypt_debug_mode)
+ printf(">>>%s: He is supporting %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME(type), type);
+ if ((type < ENCTYPE_CNT) &&
+ (I_SUPPORT_ENCRYPT & typemask(type))) {
+ remote_supports_decrypt |= typemask(type);
+ if (use_type == 0)
+ use_type = type;
+ }
+ }
+ if (use_type) {
+ ep = findencryption(use_type);
+ if (!ep)
+ return;
+ type = ep->start ? (*ep->start)(DIR_ENCRYPT, Server) : 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: (*ep->start)() returned %d\r\n",
+ Name, type);
+ if (type < 0)
+ return;
+ encrypt_mode = use_type;
+ if (type == 0)
+ encrypt_start_output(use_type);
+ }
+}
+
+ void
+encrypt_is(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+ register int type, ret;
+
+ if (--cnt < 0)
+ return;
+ type = *data++;
+ if (type < ENCTYPE_CNT)
+ remote_supports_encrypt |= typemask(type);
+ if (!(ep = finddecryption(type))) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ return;
+ }
+ if (!ep->is) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ ret = 0;
+ } else {
+ ret = (*ep->is)(data, cnt);
+ if (encrypt_debug_mode)
+ printf("(*ep->is)(%x, %d) returned %s(%d)\n", data, cnt,
+ (ret < 0) ? "FAIL " :
+ (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
+ }
+ if (ret < 0) {
+ autodecrypt = 0;
+ } else {
+ decrypt_mode = type;
+ if (ret == 0 && autodecrypt)
+ encrypt_send_request_start();
+ }
+}
+
+ void
+encrypt_reply(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+ register int ret, type;
+
+ if (--cnt < 0)
+ return;
+ type = *data++;
+ if (!(ep = findencryption(type))) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: Can't find type %s (%d) for initial negotiation\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ return;
+ }
+ if (!ep->reply) {
+ if (encrypt_debug_mode)
+ printf(">>>%s: No initial negotiation needed for type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ ret = 0;
+ } else {
+ ret = (*ep->reply)(data, cnt);
+ if (encrypt_debug_mode)
+ printf("(*ep->reply)(%x, %d) returned %s(%d)\n",
+ data, cnt,
+ (ret < 0) ? "FAIL " :
+ (ret == 0) ? "SUCCESS " : "MORE_TO_DO ", ret);
+ }
+ if (encrypt_debug_mode)
+ printf(">>>%s: encrypt_reply returned %d\n", Name, ret);
+ if (ret < 0) {
+ autoencrypt = 0;
+ } else {
+ encrypt_mode = type;
+ if (ret == 0 && autoencrypt)
+ encrypt_start_output(type);
+ }
+}
+
+/*
+ * Called when a ENCRYPT START command is received.
+ */
+ void
+encrypt_start(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ Encryptions *ep;
+
+ if (!decrypt_mode) {
+ /*
+ * Something is wrong. We should not get a START
+ * command without having already picked our
+ * decryption scheme. Send a REQUEST-END to
+ * attempt to clear the channel...
+ */
+ printf("%s: Warning, Cannot decrypt input stream!!!\r\n", Name);
+ encrypt_send_request_end();
+ return;
+ }
+
+ if (ep = finddecryption(decrypt_mode)) {
+ decrypt_input = ep->input;
+ if (encrypt_verbose)
+ printf("[ Input is now decrypted with type %s ]\r\n",
+ ENCTYPE_NAME(decrypt_mode));
+ if (encrypt_debug_mode)
+ printf(">>>%s: Start to decrypt input with type %s\r\n",
+ Name, ENCTYPE_NAME(decrypt_mode));
+ } else {
+ printf("%s: Warning, Cannot decrypt type %s (%d)!!!\r\n",
+ Name,
+ ENCTYPE_NAME_OK(decrypt_mode)
+ ? ENCTYPE_NAME(decrypt_mode)
+ : "(unknown)",
+ decrypt_mode);
+ encrypt_send_request_end();
+ }
+}
+
+ void
+encrypt_session_key(key, server)
+ Session_Key *key;
+ int server;
+{
+ Encryptions *ep = encryptions;
+
+ havesessionkey = 1;
+
+ while (ep->type) {
+ if (ep->session)
+ (*ep->session)(key, server);
+#ifdef notdef
+ if (!encrypt_output && autoencrypt && !server)
+ encrypt_start_output(ep->type);
+ if (!decrypt_input && autodecrypt && !server)
+ encrypt_send_request_start();
+#endif
+ ++ep;
+ }
+}
+
+/*
+ * Called when ENCRYPT END is received.
+ */
+ void
+encrypt_end()
+{
+ decrypt_input = 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Input is back to clear text\r\n", Name);
+ if (encrypt_verbose)
+ printf("[ Input is now clear text ]\r\n");
+}
+
+/*
+ * Called when ENCRYPT REQUEST-END is received.
+ */
+ void
+encrypt_request_end()
+{
+ encrypt_send_end();
+}
+
+/*
+ * Called when ENCRYPT REQUEST-START is received. If we receive
+ * this before a type is picked, then that indicates that the
+ * other side wants us to start encrypting data as soon as we
+ * can.
+ */
+ void
+encrypt_request_start(data, cnt)
+ unsigned char *data;
+ int cnt;
+{
+ if (encrypt_mode == 0) {
+ if (Server)
+ autoencrypt = 1;
+ return;
+ }
+ encrypt_start_output(encrypt_mode);
+}
+
+static unsigned char str_keyid[(MAXKEYLEN*2)+5] = { IAC, SB, TELOPT_ENCRYPT };
+
+encrypt_enc_keyid(keyid, len)
+ unsigned char *keyid;
+ int len;
+{
+ encrypt_keyid(&ki[1], keyid, len);
+}
+
+encrypt_dec_keyid(keyid, len)
+ unsigned char *keyid;
+ int len;
+{
+ encrypt_keyid(&ki[0], keyid, len);
+}
+
+encrypt_keyid(kp, keyid, len)
+ struct key_info *kp;
+ unsigned char *keyid;
+ int len;
+{
+ Encryptions *ep;
+ unsigned char *strp, *cp;
+ int dir = kp->dir;
+ register int ret = 0;
+
+ if (!(ep = (*kp->getcrypt)(*kp->modep))) {
+ if (len == 0)
+ return;
+ kp->keylen = 0;
+ } else if (len == 0) {
+ /*
+ * Empty option, indicates a failure.
+ */
+ if (kp->keylen == 0)
+ return;
+ kp->keylen = 0;
+ if (ep->keyid)
+ (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
+
+ } else if ((len != kp->keylen) || (bcmp(keyid, kp->keyid, len) != 0)) {
+ /*
+ * Length or contents are different
+ */
+ kp->keylen = len;
+ bcopy(keyid, kp->keyid, len);
+ if (ep->keyid)
+ (void)(*ep->keyid)(dir, kp->keyid, &kp->keylen);
+ } else {
+ if (ep->keyid)
+ ret = (*ep->keyid)(dir, kp->keyid, &kp->keylen);
+ if ((ret == 0) && (dir == DIR_ENCRYPT) && autoencrypt)
+ encrypt_start_output(*kp->modep);
+ return;
+ }
+
+ encrypt_send_keyid(dir, kp->keyid, kp->keylen, 0);
+}
+
+ void
+encrypt_send_keyid(dir, keyid, keylen, saveit)
+ int dir;
+ unsigned char *keyid;
+ int keylen;
+ int saveit;
+{
+ unsigned char *strp;
+
+ str_keyid[3] = (dir == DIR_ENCRYPT)
+ ? ENCRYPT_ENC_KEYID : ENCRYPT_DEC_KEYID;
+ if (saveit) {
+ struct key_info *kp = &ki[(dir == DIR_ENCRYPT) ? 0 : 1];
+ bcopy(keyid, kp->keyid, keylen);
+ kp->keylen = keylen;
+ }
+
+ for (strp = &str_keyid[4]; keylen > 0; --keylen) {
+ if ((*strp++ = *keyid++) == IAC)
+ *strp++ = IAC;
+ }
+ *strp++ = IAC;
+ *strp++ = SE;
+ net_write(str_keyid, strp - str_keyid);
+ printsub('>', &str_keyid[2], strp - str_keyid - 2);
+}
+
+ void
+encrypt_auto(on)
+ int on;
+{
+ if (on < 0)
+ autoencrypt ^= 1;
+ else
+ autoencrypt = on ? 1 : 0;
+}
+
+ void
+decrypt_auto(on)
+ int on;
+{
+ if (on < 0)
+ autodecrypt ^= 1;
+ else
+ autodecrypt = on ? 1 : 0;
+}
+
+ void
+encrypt_start_output(type)
+ int type;
+{
+ Encryptions *ep;
+ register unsigned char *p;
+ register int i;
+
+ if (!(ep = findencryption(type))) {
+ if (encrypt_debug_mode) {
+ printf(">>>%s: Can't encrypt with type %s (%d)\r\n",
+ Name,
+ ENCTYPE_NAME_OK(type)
+ ? ENCTYPE_NAME(type) : "(unknown)",
+ type);
+ }
+ return;
+ }
+ if (ep->start) {
+ i = (*ep->start)(DIR_ENCRYPT, Server);
+ if (encrypt_debug_mode) {
+ printf(">>>%s: Encrypt start: %s (%d) %s\r\n",
+ Name,
+ (i < 0) ? "failed" :
+ "initial negotiation in progress",
+ i, ENCTYPE_NAME(type));
+ }
+ if (i)
+ return;
+ }
+ p = str_start + 3;
+ *p++ = ENCRYPT_START;
+ for (i = 0; i < ki[0].keylen; ++i) {
+ if ((*p++ = ki[0].keyid[i]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ net_write(str_start, p - str_start);
+ net_encrypt();
+ printsub('>', &str_start[2], p - &str_start[2]);
+ /*
+ * If we are already encrypting in some mode, then
+ * encrypt the ring (which includes our request) in
+ * the old mode, mark it all as "clear text" and then
+ * switch to the new mode.
+ */
+ encrypt_output = ep->output;
+ encrypt_mode = type;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Started to encrypt output with type %s\r\n",
+ Name, ENCTYPE_NAME(type));
+ if (encrypt_verbose)
+ printf("[ Output is now encrypted with type %s ]\r\n",
+ ENCTYPE_NAME(type));
+}
+
+ void
+encrypt_send_end()
+{
+ if (!encrypt_output)
+ return;
+
+ str_end[3] = ENCRYPT_END;
+ net_write(str_end, sizeof(str_end));
+ net_encrypt();
+ printsub('>', &str_end[2], sizeof(str_end) - 2);
+ /*
+ * Encrypt the output buffer now because it will not be done by
+ * netflush...
+ */
+ encrypt_output = 0;
+ if (encrypt_debug_mode)
+ printf(">>>%s: Output is back to clear text\r\n", Name);
+ if (encrypt_verbose)
+ printf("[ Output is now clear text ]\r\n");
+}
+
+ void
+encrypt_send_request_start()
+{
+ register unsigned char *p;
+ register int i;
+
+ p = &str_start[3];
+ *p++ = ENCRYPT_REQSTART;
+ for (i = 0; i < ki[1].keylen; ++i) {
+ if ((*p++ = ki[1].keyid[i]) == IAC)
+ *p++ = IAC;
+ }
+ *p++ = IAC;
+ *p++ = SE;
+ net_write(str_start, p - str_start);
+ printsub('>', &str_start[2], p - &str_start[2]);
+ if (encrypt_debug_mode)
+ printf(">>>%s: Request input to be encrypted\r\n", Name);
+}
+
+ void
+encrypt_send_request_end()
+{
+ str_end[3] = ENCRYPT_REQEND;
+ net_write(str_end, sizeof(str_end));
+ printsub('>', &str_end[2], sizeof(str_end) - 2);
+
+ if (encrypt_debug_mode)
+ printf(">>>%s: Request input to be clear text\r\n", Name);
+}
+
+ void
+encrypt_wait()
+{
+ register int encrypt, decrypt;
+ if (encrypt_debug_mode)
+ printf(">>>%s: in encrypt_wait\r\n", Name);
+ if (!havesessionkey || !(I_SUPPORT_ENCRYPT & remote_supports_decrypt))
+ return;
+ while (autoencrypt && !encrypt_output)
+ if (telnet_spin())
+ return;
+}
+
+ void
+encrypt_debug(mode)
+ int mode;
+{
+ encrypt_debug_mode = mode;
+}
+
+ void
+encrypt_gen_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ char tbuf[16], *cp;
+
+ cnt -= 2;
+ data += 2;
+ buf[buflen-1] = '\0';
+ buf[buflen-2] = '*';
+ buflen -= 2;;
+ for (; cnt > 0; cnt--, data++) {
+ sprintf(tbuf, " %d", *data);
+ for (cp = tbuf; *cp && buflen > 0; --buflen)
+ *buf++ = *cp++;
+ if (buflen <= 0)
+ return;
+ }
+ *buf = '\0';
+}
+
+ void
+encrypt_printsub(data, cnt, buf, buflen)
+ unsigned char *data, *buf;
+ int cnt, buflen;
+{
+ Encryptions *ep;
+ register int type = data[1];
+
+ for (ep = encryptions; ep->type && ep->type != type; ep++)
+ ;
+
+ if (ep->printsub)
+ (*ep->printsub)(data, cnt, buf, buflen);
+ else
+ encrypt_gen_printsub(data, cnt, buf, buflen);
+}
+#endif /* ENCRYPTION */
diff --git a/secure/lib/libtelnet/encrypt.h b/secure/lib/libtelnet/encrypt.h
new file mode 100644
index 000000000000..e0ae385f13f3
--- /dev/null
+++ b/secure/lib/libtelnet/encrypt.h
@@ -0,0 +1,108 @@
+/*-
+ * 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.
+ *
+ * @(#)encrypt.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 ENCRYPTION
+# ifndef __ENCRYPTION__
+# define __ENCRYPTION__
+
+#define DIR_DECRYPT 1
+#define DIR_ENCRYPT 2
+
+typedef unsigned char Block[8];
+typedef unsigned char *BlockT;
+typedef struct { Block _; } Schedule[16];
+
+#define VALIDKEY(key) ( key[0] | key[1] | key[2] | key[3] | \
+ key[4] | key[5] | key[6] | key[7])
+
+#define SAMEKEY(k1, k2) (!bcmp((void *)k1, (void *)k2, sizeof(Block)))
+
+typedef struct {
+ short type;
+ int length;
+ unsigned char *data;
+} Session_Key;
+
+# if !defined(P)
+# ifdef __STDC__
+# define P(x) x
+# else
+# define P(x) ()
+# endif
+# endif
+
+typedef struct {
+ char *name;
+ int type;
+ void (*output) P((unsigned char *, int));
+ int (*input) P((int));
+ void (*init) P((int));
+ int (*start) P((int, int));
+ int (*is) P((unsigned char *, int));
+ int (*reply) P((unsigned char *, int));
+ void (*session) P((Session_Key *, int));
+ int (*keyid) P((int, unsigned char *, int *));
+ void (*printsub) P((unsigned char *, int, unsigned char *, int));
+} Encryptions;
+
+#define SK_DES 1 /* Matched Kerberos v5 KEYTYPE_DES */
+
+#include "enc-proto.h"
+
+extern int encrypt_debug_mode;
+extern int (*decrypt_input) P((int));
+extern void (*encrypt_output) P((unsigned char *, int));
+# endif /* __ENCRYPTION__ */
+#endif /* ENCRYPTION */
diff --git a/secure/lib/libtelnet/genget.c b/secure/lib/libtelnet/genget.c
new file mode 100644
index 000000000000..a43579f82ffb
--- /dev/null
+++ b/secure/lib/libtelnet/genget.c
@@ -0,0 +1,105 @@
+/*-
+ * 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[] = "@(#)genget.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+
+#include <ctype.h>
+
+#define LOWER(x) (isupper(x) ? tolower(x) : (x))
+/*
+ * The prefix function returns 0 if *s1 is not a prefix
+ * of *s2. If *s1 exactly matches *s2, the negative of
+ * the length is returned. If *s1 is a prefix of *s2,
+ * the length of *s1 is returned.
+ */
+ int
+isprefix(s1, s2)
+ register char *s1, *s2;
+{
+ register int n = 0;
+ char *os1;
+ register char c1, c2;
+
+ if (*s1 == '\0')
+ return(-1);
+ os1 = s1;
+ c1 = *s1;
+ c2 = *s2;
+ while (LOWER(c1) == LOWER(c2)) {
+ if (c1 == '\0')
+ break;
+ c1 = *++s1;
+ c2 = *++s2;
+ }
+ return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1)));
+}
+
+static char *ambiguous; /* special return value for command routines */
+
+ char **
+genget(name, table, stlen)
+ char *name; /* name to match */
+ char **table; /* name entry in table */
+ int stlen;
+{
+ register char **c, **found;
+ register int n;
+
+ if (name == 0)
+ return 0;
+
+ found = 0;
+ for (c = table; *c != 0; c = (char **)((char *)c + stlen)) {
+ if ((n = isprefix(name, *c)) == 0)
+ continue;
+ if (n < 0) /* exact match */
+ return(c);
+ if (found)
+ return(&ambiguous);
+ found = c;
+ }
+ return(found);
+}
+
+/*
+ * Function call version of Ambiguous()
+ */
+ int
+Ambiguous(s)
+ char *s;
+{
+ return((char **)s == &ambiguous);
+}
diff --git a/secure/lib/libtelnet/getent.c b/secure/lib/libtelnet/getent.c
new file mode 100644
index 000000000000..05626f11d413
--- /dev/null
+++ b/secure/lib/libtelnet/getent.c
@@ -0,0 +1,68 @@
+/*-
+ * 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[] = "@(#)getent.c 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+static char *area;
+
+/*ARGSUSED*/
+getent(cp, name)
+char *cp, *name;
+{
+#ifdef HAS_CGETENT
+ char *dba[2];
+
+ dba[0] = "/etc/gettytab";
+ dba[1] = 0;
+ return((cgetent(&area, dba, name) == 0) ? 1 : 0);
+#else
+ return(0);
+#endif
+}
+
+#ifndef SOLARIS
+/*ARGSUSED*/
+char *
+getstr(id, cpp)
+char *id, **cpp;
+{
+# ifdef HAS_CGETENT
+ char *answer;
+ return((cgetstr(area, id, &answer) > 0) ? answer : 0);
+# else
+ return(0);
+# endif
+}
+#endif
diff --git a/secure/lib/libtelnet/kerberos.c b/secure/lib/libtelnet/kerberos.c
new file mode 100644
index 000000000000..aa9b4189c86c
--- /dev/null
+++ b/secure/lib/libtelnet/kerberos.c
@@ -0,0 +1,554 @@
+/*-
+ * 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[] = "@(#)kerberos.c 8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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 KRB4
+#include <sys/types.h>
+#include <arpa/telnet.h>
+#include <stdio.h>
+#include <des.h> /* BSD wont include this in krb.h, so we do it here */
+#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 kerberos4_cksum P((unsigned char *, int));
+int krb_mk_req P((KTEXT, char *, char *, char *, u_long));
+int krb_rd_req P((KTEXT, char *, char *, u_long, AUTH_DAT *, char *));
+int krb_kntoln P((AUTH_DAT *, char *));
+int krb_get_cred P((char *, char *, char *, CREDENTIALS *));
+int krb_get_lrealm P((char *, int));
+int kuserok P((AUTH_DAT *, char *));
+
+extern auth_debug_mode;
+
+static unsigned char str_data[1024] = { IAC, SB, TELOPT_AUTHENTICATION, 0,
+ AUTHTYPE_KERBEROS_V4, };
+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_CHALLENGE 3 /* Challenge for mutual auth. */
+#define KRB_RESPONSE 4 /* Response for mutual auth. */
+
+#define KRB_SERVICE_NAME "rcmd"
+
+static KTEXT_ST auth;
+static char name[ANAME_SZ];
+static AUTH_DAT adat = { 0 };
+#ifdef ENCRYPTION
+static Block session_key = { 0 };
+static Schedule sched;
+static Block challenge = { 0 };
+#endif /* ENCRYPTION */
+
+ 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 (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
+kerberos4_init(ap, server)
+ Authenticator *ap;
+ int server;
+{
+ FILE *fp;
+
+ if (server) {
+ str_data[3] = TELQUAL_REPLY;
+ if ((fp = fopen(KEYFILE, "r")) == NULL)
+ return(0);
+ fclose(fp);
+ } else {
+ str_data[3] = TELQUAL_IS;
+ }
+ return(1);
+}
+
+char dst_realm_buf[REALM_SZ], *dest_realm = NULL;
+int dst_realm_sz = REALM_SZ;
+
+ int
+kerberos4_send(ap)
+ Authenticator *ap;
+{
+ KTEXT_ST auth;
+#ifdef ENCRYPTION
+ Block enckey;
+#endif /* ENCRYPTION */
+ char instance[INST_SZ];
+ char *realm;
+ char *krb_realmofhost();
+ char *krb_get_phost();
+ CREDENTIALS cred;
+ int r;
+
+ printf("[ Trying KERBEROS4 ... ]\n");
+ if (!UserNameRequested) {
+ if (auth_debug_mode) {
+ printf("Kerberos V4: no user name supplied\r\n");
+ }
+ return(0);
+ }
+
+ bzero(instance, sizeof(instance));
+
+ if (realm = krb_get_phost(RemoteHostName))
+ strncpy(instance, realm, sizeof(instance));
+
+ instance[sizeof(instance)-1] = '\0';
+
+ realm = dest_realm ? dest_realm : krb_realmofhost(RemoteHostName);
+
+ if (!realm) {
+ printf("Kerberos V4: no realm for %s\r\n", RemoteHostName);
+ return(0);
+ }
+ if (r = krb_mk_req(&auth, KRB_SERVICE_NAME, instance, realm, 0L)) {
+ printf("mk_req failed: %s\r\n", krb_err_txt[r]);
+ return(0);
+ }
+ if (r = krb_get_cred(KRB_SERVICE_NAME, instance, realm, &cred)) {
+ printf("get_cred failed: %s\r\n", krb_err_txt[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 (auth_debug_mode)
+ printf("Sent %d bytes of authentication data\r\n", auth.length);
+ if (!Data(ap, KRB_AUTH, (void *)auth.dat, auth.length)) {
+ if (auth_debug_mode)
+ printf("Not enough room for authentication data\r\n");
+ return(0);
+ }
+#ifdef ENCRYPTION
+ /*
+ * 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;
+
+ des_key_sched(cred.session, sched);
+ des_set_random_generator_seed(cred.session);
+ des_new_random_key(challenge);
+ des_ecb_encrypt(challenge, session_key, sched, 1);
+ /*
+ * Increment the challenge by 1, and encrypt it for
+ * later comparison.
+ */
+ for (i = 7; i >= 0; --i) {
+ register int x;
+ x = (unsigned int)challenge[i] + 1;
+ challenge[i] = x; /* ignore overflow */
+ if (x < 256) /* if no overflow, all done */
+ break;
+ }
+ des_ecb_encrypt(challenge, challenge, sched, 1);
+ }
+#endif /* ENCRYPTION */
+
+ if (auth_debug_mode) {
+ printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length));
+ printd(auth.dat, auth.length);
+ printf("\r\n");
+ printf("Sent Kerberos V4 credentials to server\r\n");
+ }
+ return(1);
+}
+
+ void
+kerberos4_is(ap, data, cnt)
+ Authenticator *ap;
+ unsigned char *data;
+ int cnt;
+{
+#ifdef ENCRYPTION
+ Session_Key skey;
+ Block datablock;
+#endif /* ENCRYPTION */
+ char realm[REALM_SZ];
+ char instance[INST_SZ];
+ int r;
+
+ if (cnt-- < 1)
+ return;
+ switch (*data++) {
+ case KRB_AUTH:
+ if (krb_get_lrealm(realm, 1) != KSUCCESS) {
+ Data(ap, KRB_REJECT, (void *)"No local V4 Realm.", -1);
+ auth_finished(ap, AUTH_REJECT);
+ if (auth_debug_mode)
+ printf("No local realm\r\n");
+ return;
+ }
+ bcopy((void *)data, (void *)auth.dat, auth.length = cnt);
+ if (auth_debug_mode) {
+ printf("Got %d bytes of authentication data\r\n", cnt);
+ printf("CK: %d:", kerberos4_cksum(auth.dat, auth.length));
+ printd(auth.dat, auth.length);
+ printf("\r\n");
+ }
+ instance[0] = '*'; instance[1] = 0;
+ if (r = krb_rd_req(&auth, KRB_SERVICE_NAME,
+ instance, 0, &adat, "")) {
+ if (auth_debug_mode)
+ printf("Kerberos failed him as %s\r\n", name);
+ Data(ap, KRB_REJECT, (void *)krb_err_txt[r], -1);
+ auth_finished(ap, AUTH_REJECT);
+ return;
+ }
+#ifdef ENCRYPTION
+ bcopy((void *)adat.session, (void *)session_key, sizeof(Block));
+#endif /* ENCRYPTION */
+ krb_kntoln(&adat, name);
+
+ if (UserNameRequested && !kuserok(&adat, UserNameRequested))
+ Data(ap, KRB_ACCEPT, (void *)0, 0);
+ else
+ Data(ap, KRB_REJECT,
+ (void *)"user is not authorized", -1);
+ auth_finished(ap, AUTH_USER);
+ break;
+
+ case KRB_CHALLENGE:
+#ifndef ENCRYPTION
+ Data(ap, KRB_RESPONSE, (void *)0, 0);
+#else /* ENCRYPTION */
+ if (!VALIDKEY(session_key)) {
+ /*
+ * We don't have a valid session key, so just
+ * send back a response with an empty session
+ * key.
+ */
+ Data(ap, KRB_RESPONSE, (void *)0, 0);
+ break;
+ }
+
+ des_key_sched(session_key, sched);
+ bcopy((void *)data, (void *)datablock, sizeof(Block));
+ /*
+ * Take the received encrypted challenge, and encrypt
+ * it again to get a unique session_key for the
+ * ENCRYPT option.
+ */
+ des_ecb_encrypt(datablock, session_key, sched, 1);
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 1);
+ /*
+ * Now decrypt the received encrypted challenge,
+ * increment by one, re-encrypt it and send it back.
+ */
+ des_ecb_encrypt(datablock, challenge, sched, 0);
+ for (r = 7; r >= 0; r++) {
+ register int t;
+ t = (unsigned int)challenge[r] + 1;
+ challenge[r] = t; /* ignore overflow */
+ if (t < 256) /* if no overflow, all done */
+ break;
+ }
+ des_ecb_encrypt(challenge, challenge, sched, 1);
+ Data(ap, KRB_RESPONSE, (void *)challenge, sizeof(challenge));
+#endif /* ENCRYPTION */
+ break;
+
+ default:
+ if (auth_debug_mode)
+ printf("Unknown Kerberos option %d\r\n", data[-1]);
+ Data(ap, KRB_REJECT, 0, 0);
+ break;
+ }
+}
+
+ void
+kerberos4_reply(ap, data, cnt)
+ Authenticator *ap;
+ unsigned char *data;
+ int cnt;
+{
+#ifdef ENCRYPTION
+ Session_Key skey;
+#endif /* ENCRYPTION */
+
+ if (cnt-- < 1)
+ return;
+ switch (*data++) {
+ case KRB_REJECT:
+ if (cnt > 0) {
+ printf("[ Kerberos V4 refuses authentication because %.*s ]\r\n",
+ cnt, data);
+ } else
+ printf("[ Kerberos V4 refuses authentication ]\r\n");
+ auth_send_retry();
+ return;
+ case KRB_ACCEPT:
+ printf("[ Kerberos V4 accepts you ]\n");
+ if ((ap->way & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) {
+ /*
+ * Send over the encrypted challenge.
+ */
+#ifndef ENCRYPTION
+ Data(ap, KRB_CHALLENGE, (void *)0, 0);
+#else /* ENCRYPTION */
+ Data(ap, KRB_CHALLENGE, (void *)session_key,
+ sizeof(session_key));
+ des_ecb_encrypt(session_key, session_key, sched, 1);
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 0);
+#endif /* ENCRYPTION */
+ return;
+ }
+ auth_finished(ap, AUTH_USER);
+ return;
+ case KRB_RESPONSE:
+#ifdef ENCRYPTION
+ /*
+ * Verify that the response to the challenge is correct.
+ */
+ if ((cnt != sizeof(Block)) ||
+ (0 != memcmp((void *)data, (void *)challenge,
+ sizeof(challenge))))
+ {
+#endif /* ENCRYPTION */
+ printf("[ Kerberos V4 challenge failed!!! ]\r\n");
+ auth_send_retry();
+ return;
+#ifdef ENCRYPTION
+ }
+ printf("[ Kerberos V4 challenge successful ]\r\n");
+ auth_finished(ap, AUTH_USER);
+#endif /* ENCRYPTION */
+ break;
+ default:
+ if (auth_debug_mode)
+ printf("Unknown Kerberos option %d\r\n", data[-1]);
+ return;
+ }
+}
+
+ int
+kerberos4_status(ap, name, level)
+ Authenticator *ap;
+ char *name;
+ int level;
+{
+ if (level < AUTH_USER)
+ return(level);
+
+ if (UserNameRequested && !kuserok(&adat, 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
+kerberos4_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_CHALLENGE:
+ strncpy((char *)buf, " CHALLENGE", buflen);
+ goto common2;
+
+ case KRB_RESPONSE:
+ strncpy((char *)buf, " RESPONSE", 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
+kerberos4_cksum(d, n)
+ unsigned char *d;
+ int n;
+{
+ int ck = 0;
+
+ /*
+ * A comment is probably needed here for those not
+ * well versed in the "C" language. Yes, this is
+ * supposed to be a "switch" with the body of the
+ * "switch" being a "while" statement. The whole
+ * purpose of the switch is to allow us to jump into
+ * the middle of the while() loop, and then not have
+ * to do any more switch()s.
+ *
+ * Some compilers will spit out a warning message
+ * about the loop not being entered at the top.
+ */
+ switch (n&03)
+ while (n > 0) {
+ case 0:
+ ck ^= (int)*d++ << 24;
+ --n;
+ case 3:
+ ck ^= (int)*d++ << 16;
+ --n;
+ case 2:
+ ck ^= (int)*d++ << 8;
+ --n;
+ case 1:
+ ck ^= (int)*d++;
+ --n;
+ }
+ return(ck);
+}
+#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
diff --git a/secure/lib/libtelnet/kerberos5.c b/secure/lib/libtelnet/kerberos5.c
new file mode 100644
index 000000000000..d2eb34fff38c
--- /dev/null
+++ b/secure/lib/libtelnet/kerberos5.c
@@ -0,0 +1,762 @@
+/*
+ * $Source: /home/ncvs/src/lib/libtelnet/kerberos5.c,v $
+ * $Author: rgrimes $
+ * $Id: kerberos5.c,v 1.1.1.1 1994/05/27 05:00:20 rgrimes Exp $
+ */
+
+#if !defined(lint) && !defined(SABER)
+static
+#ifdef __STDC__
+const
+#endif
+char rcsid_kerberos5_c[] = "$Id: kerberos5.c,v 1.1.1.1 1994/05/27 05:00:20 rgrimes Exp $";
+#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 8.2 (Berkeley) 12/15/93";
+#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;
+
+#ifdef ENCRYPTION
+ krb5_keyblock *newkey = 0;
+#endif /* ENCRYPTION */
+
+ ksum.checksum_type = CKSUMTYPE_CRC32;
+ ksum.contents = sum;
+ ksum.length = sizeof(sum);
+ bzero((Voidptr )sum, 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);
+ }
+
+
+ bzero((char *)&creds, 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,
+#ifdef ENCRYPTION
+ &newkey,
+#else /* ENCRYPTION */
+ 0,
+#endif /* ENCRYPTION */
+ 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);
+#ifdef ENCRYPTION
+ if (newkey) {
+ /* keep the key in our private storage, but don't use it
+ yet---see kerberos5_reply() below */
+ if (newkey->keytype != KEYTYPE_DES) {
+ if (creds.keyblock.keytype == KEYTYPE_DES)
+ /* use the session key in credentials instead */
+ memcpy((char *)session_key,
+ (char *)creds.keyblock.contents, sizeof(Block));
+ else
+ /* XXX ? */;
+ } else {
+ memcpy((char *)session_key, (char *)newkey->contents,
+ sizeof(Block));
+ }
+ krb5_free_keyblock(newkey);
+ }
+#endif /* ENCRYPTION */
+ 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;
+#ifdef ENCRYPTION
+ Session_Key skey;
+#endif /* ENCRYPTION */
+ 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) {
+ bcopy((Voidptr )authdat->authenticator->subkey->contents,
+ (Voidptr )session_key, sizeof(Block));
+ } else if (authdat->ticket->enc_part2->session->keytype ==
+ KEYTYPE_DES) {
+ bcopy((Voidptr )authdat->ticket->enc_part2->session->contents,
+ (Voidptr )session_key, sizeof(Block));
+ } else
+ break;
+
+#ifdef ENCRYPTION
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 1);
+#endif /* ENCRYPTION */
+ 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);
+#ifdef ENCRYPTION
+ skey.type = SK_DES;
+ skey.length = 8;
+ skey.data = session_key;
+ encrypt_session_key(&skey, 0);
+#endif /* ENCRYPTION */
+ 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 */
diff --git a/secure/lib/libtelnet/key-proto.h b/secure/lib/libtelnet/key-proto.h
new file mode 100644
index 000000000000..9668a775be50
--- /dev/null
+++ b/secure/lib/libtelnet/key-proto.h
@@ -0,0 +1,71 @@
+/*-
+ * 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.
+ *
+ * @(#)key-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __KEY_PROTO__
+#define __KEY_PROTO__
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+int key_file_exists P((void));
+void key_lookup P((unsigned char *, Block));
+void key_stream_init P((Block, Block, int));
+unsigned char key_stream P((int, int));
+#endif
diff --git a/secure/lib/libtelnet/krb4encpwd.c b/secure/lib/libtelnet/krb4encpwd.c
new file mode 100644
index 000000000000..0f75d4d06076
--- /dev/null
+++ b/secure/lib/libtelnet/krb4encpwd.c
@@ -0,0 +1,446 @@
+/*-
+ * 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 8.1 (Berkeley) 6/4/93";
+#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 = index(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:
+ bcopy((void *)data, (void *)auth.dat, auth.length = cnt);
+
+ gethostname(lhostname, sizeof(lhostname));
+ if ((cp = index(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;
+ }
+
+ bcopy((void *)adat.session, (void *)session_key, 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.
+ */
+ bcopy((void *)data, (void *)challenge, 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 challange, 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);
+ bcopy((void *)data, (void *)challenge, cnt);
+ bzero(user_passwd, 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 = index(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
diff --git a/secure/lib/libtelnet/misc-proto.h b/secure/lib/libtelnet/misc-proto.h
new file mode 100644
index 000000000000..e5f334a9bdd0
--- /dev/null
+++ b/secure/lib/libtelnet/misc-proto.h
@@ -0,0 +1,79 @@
+/*-
+ * 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.
+ *
+ * @(#)misc-proto.h 8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * Copyright (C) 1990 by the Massachusetts Institute of Technology
+ *
+ * Export of this software from the United States of America is assumed
+ * to 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.
+ */
+
+#ifndef __MISC_PROTO__
+#define __MISC_PROTO__
+
+#if !defined(P)
+#ifdef __STDC__
+#define P(x) x
+#else
+#define P(x) ()
+#endif
+#endif
+
+void auth_encrypt_init P((char *, char *, char *, int));
+void auth_encrypt_connect P((int));
+void printd P((unsigned char *, int));
+
+/*
+ * These functions are imported from the application
+ */
+int net_write P((unsigned char *, int));
+void net_encrypt P((void));
+int telnet_spin P((void));
+char *telnet_getenv P((char *));
+char *telnet_gets P((char *, char *, int, int));
+#endif
diff --git a/secure/lib/libtelnet/misc.c b/secure/lib/libtelnet/misc.c
new file mode 100644
index 000000000000..9565900a391e
--- /dev/null
+++ b/secure/lib/libtelnet/misc.c
@@ -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
+#ifdef ENCRYPTION
+ encrypt_init(name, server);
+#endif /* ENCRYPTION */
+ 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;
+ }
+}
diff --git a/secure/lib/libtelnet/misc.h b/secure/lib/libtelnet/misc.h
new file mode 100644
index 000000000000..41ffa7f67aa7
--- /dev/null
+++ b/secure/lib/libtelnet/misc.h
@@ -0,0 +1,42 @@
+/*-
+ * 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.
+ *
+ * @(#)misc.h 8.1 (Berkeley) 6/4/93
+ */
+
+extern char *UserNameRequested;
+extern char *LocalHostName;
+extern char *RemoteHostName;
+extern int ConnectedCount;
+extern int ReservedPort;
+
+#include "misc-proto.h"
diff --git a/secure/lib/libtelnet/read_password.c b/secure/lib/libtelnet/read_password.c
new file mode 100644
index 000000000000..5eaa8959c59a
--- /dev/null
+++ b/secure/lib/libtelnet/read_password.c
@@ -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 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+/*
+ * $Source: /home/ncvs/src/lib/libtelnet/read_password.c,v $
+ * $Author: rgrimes $
+ *
+ * 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 */
+ bcopy((char *)old_env, (char *)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 = index(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 = index(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)
+ bzero(s, max);
+ printf("\n");
+ /* turn echo back on */
+ tty_state.sg_flags |= ECHO;
+ if (ioctl(0,TIOCSETP,(char *)&tty_state))
+ ok = 0;
+/*
+ pop_signals();
+*/
+ bcopy((char *)env, (char *)old_env, sizeof(env));
+ if (verify)
+ bzero(key_string, sizeof (key_string));
+ s[max-1] = 0; /* force termination */
+ return !ok; /* return nonzero if not okay */
+}
+#endif /* defined(RSA_ENCPWD) || defined(KRB4_ENCPWD) */
diff --git a/secure/lib/libtelnet/rsaencpwd.c b/secure/lib/libtelnet/rsaencpwd.c
new file mode 100644
index 000000000000..eda70fe0f737
--- /dev/null
+++ b/secure/lib/libtelnet/rsaencpwd.c
@@ -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 8.1 (Berkeley) 6/4/93";
+#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;
+ bzero(key_file, sizeof(key_file));
+ gethostname(lhostname, sizeof(lhostname));
+ if ((cp = index(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:
+ bcopy((void *)data, (void *)auth.dat, 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 challange, 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;
+ bcopy(challenge, ptr, challenge_len);
+ ptr += challenge_len;
+ *ptr++ = 0x04; /* OCTET STRING */
+ EncodeLength(ptr, i);
+ ptr += NumEncodeLengthOctets(i);
+ bcopy(key, ptr, 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.
+ */
+
+ bcopy((void *)data, (void *)chalkey, cnt);
+ ptr = (char *) &chalkey[0];
+ ptr += DecodeHeaderLength(chalkey);
+ if (*ptr != 0x04) {
+ return;
+ }
+ *ptr++;
+ challenge_len = DecodeValueLength(ptr);
+ ptr += NumEncodeLengthOctets(challenge_len);
+ bcopy(ptr, challenge, challenge_len);
+ ptr += challenge_len;
+ if (*ptr != 0x04) {
+ return;
+ }
+ *ptr++;
+ pubkey_len = DecodeValueLength(ptr);
+ ptr += NumEncodeLengthOctets(pubkey_len);
+ bcopy(ptr, pubkey, pubkey_len);
+ bzero(user_passwd, 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
diff --git a/secure/lib/libtelnet/spx.c b/secure/lib/libtelnet/spx.c
new file mode 100644
index 000000000000..b4634d0a7036
--- /dev/null
+++ b/secure/lib/libtelnet/spx.c
@@ -0,0 +1,588 @@
+/*-
+ * 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 8.1 (Berkeley) 6/4/93";
+#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 */
+
+#ifdef ENCRYPTION
+static Block session_key = { 0 };
+#endif /* ENCRYPTION */
+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