1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
3*0Sstevel@tonic-gate * Use is subject to license terms.
4*0Sstevel@tonic-gate */
5*0Sstevel@tonic-gate
6*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
7*0Sstevel@tonic-gate
8*0Sstevel@tonic-gate /*
9*0Sstevel@tonic-gate * Miscellaneous routines needed by the telnet client for authentication
10*0Sstevel@tonic-gate * and / or encryption.
11*0Sstevel@tonic-gate */
12*0Sstevel@tonic-gate
13*0Sstevel@tonic-gate /*
14*0Sstevel@tonic-gate * Copyright (c) 1991, 1993
15*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved.
16*0Sstevel@tonic-gate *
17*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
18*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions
19*0Sstevel@tonic-gate * are met:
20*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
21*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
22*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
23*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
24*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
25*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
26*0Sstevel@tonic-gate * must display the following acknowledgement:
27*0Sstevel@tonic-gate * This product includes software developed by the University of
28*0Sstevel@tonic-gate * California, Berkeley and its contributors.
29*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors
30*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software
31*0Sstevel@tonic-gate * without specific prior written permission.
32*0Sstevel@tonic-gate *
33*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
34*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
37*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43*0Sstevel@tonic-gate * SUCH DAMAGE.
44*0Sstevel@tonic-gate */
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate #ifndef lint
47*0Sstevel@tonic-gate static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93";
48*0Sstevel@tonic-gate #endif /* not lint */
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate #include <sys/types.h>
51*0Sstevel@tonic-gate #include <arpa/telnet.h>
52*0Sstevel@tonic-gate
53*0Sstevel@tonic-gate #include "general.h"
54*0Sstevel@tonic-gate #include "ring.h"
55*0Sstevel@tonic-gate #include "externs.h"
56*0Sstevel@tonic-gate #include "defines.h"
57*0Sstevel@tonic-gate #include "types.h"
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate char *RemoteHostName = NULL;
60*0Sstevel@tonic-gate char *UserNameRequested = NULL;
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate #define MAXNETDATA 16
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate /*
65*0Sstevel@tonic-gate * Get ready to do authentication and encryption by calling their
66*0Sstevel@tonic-gate * init routines, and clearing the user name variable
67*0Sstevel@tonic-gate */
68*0Sstevel@tonic-gate /* ARGSUSED */
69*0Sstevel@tonic-gate void
auth_encrypt_init(char * local,char * remote,char * name)70*0Sstevel@tonic-gate auth_encrypt_init(char *local, char *remote, char *name)
71*0Sstevel@tonic-gate {
72*0Sstevel@tonic-gate RemoteHostName = remote;
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate auth_init(name);
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate encrypt_init(name);
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate if (UserNameRequested) {
79*0Sstevel@tonic-gate free(UserNameRequested);
80*0Sstevel@tonic-gate UserNameRequested = NULL;
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate }
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate /*
85*0Sstevel@tonic-gate * Set the user name variable. This is the user name used from now
86*0Sstevel@tonic-gate * on for authentication and encryption
87*0Sstevel@tonic-gate */
88*0Sstevel@tonic-gate void
auth_encrypt_user(char * name)89*0Sstevel@tonic-gate auth_encrypt_user(char *name)
90*0Sstevel@tonic-gate {
91*0Sstevel@tonic-gate if (UserNameRequested)
92*0Sstevel@tonic-gate free(UserNameRequested);
93*0Sstevel@tonic-gate UserNameRequested = name ? strdup(name) : NULL;
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate int
net_write(unsigned char * str,int len)97*0Sstevel@tonic-gate net_write(unsigned char *str, int len)
98*0Sstevel@tonic-gate {
99*0Sstevel@tonic-gate if (NETROOM() > len) {
100*0Sstevel@tonic-gate ring_supply_data(&netoring, str, len);
101*0Sstevel@tonic-gate if (str[0] == IAC && str[1] == SE)
102*0Sstevel@tonic-gate printsub('>', &str[2], len - 2);
103*0Sstevel@tonic-gate return (len);
104*0Sstevel@tonic-gate }
105*0Sstevel@tonic-gate return (0);
106*0Sstevel@tonic-gate }
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate void
net_encrypt(void)109*0Sstevel@tonic-gate net_encrypt(void)
110*0Sstevel@tonic-gate {
111*0Sstevel@tonic-gate if (encrypt_output)
112*0Sstevel@tonic-gate ring_encrypt(&netoring, encrypt_output);
113*0Sstevel@tonic-gate else
114*0Sstevel@tonic-gate ring_clearto(&netoring);
115*0Sstevel@tonic-gate }
116*0Sstevel@tonic-gate
117*0Sstevel@tonic-gate /*
118*0Sstevel@tonic-gate * Spin to wait for authentication to complete
119*0Sstevel@tonic-gate * This allows for a timeout
120*0Sstevel@tonic-gate */
121*0Sstevel@tonic-gate void
telnet_spin(void)122*0Sstevel@tonic-gate telnet_spin(void)
123*0Sstevel@tonic-gate {
124*0Sstevel@tonic-gate extern boolean_t scheduler_lockout_tty;
125*0Sstevel@tonic-gate
126*0Sstevel@tonic-gate scheduler_lockout_tty = B_TRUE;
127*0Sstevel@tonic-gate (void) Scheduler(0);
128*0Sstevel@tonic-gate scheduler_lockout_tty = B_FALSE;
129*0Sstevel@tonic-gate }
130*0Sstevel@tonic-gate
131*0Sstevel@tonic-gate
132*0Sstevel@tonic-gate /*
133*0Sstevel@tonic-gate * Used to print out unsigned chars as decimals for debugging options
134*0Sstevel@tonic-gate */
135*0Sstevel@tonic-gate void
printd(unsigned char * data,int cnt)136*0Sstevel@tonic-gate printd(unsigned char *data, int cnt)
137*0Sstevel@tonic-gate {
138*0Sstevel@tonic-gate cnt = (cnt < MAXNETDATA) ? cnt:MAXNETDATA;
139*0Sstevel@tonic-gate while (cnt-- > 0)
140*0Sstevel@tonic-gate (void) printf(" %02x", *data++);
141*0Sstevel@tonic-gate }
142