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1 /* @(#) $Header: /tcpdump/master/tcpdump/telnet.h,v 1.4 2002/06/11 17:09:01 itojun Exp $ (LBL) */
2 
3 /*	$NetBSD: telnet.h,v 1.9 2001/06/11 01:50:50 wiz Exp $	*/
4 
5 /*
6  * Copyright (c) 1983, 1993
7  *	The Regents of the University of California.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed by the University of
20  *	California, Berkeley and its contributors.
21  * 4. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)telnet.h	8.2 (Berkeley) 12/15/93
38  */
39 
40 #ifndef _ARPA_TELNET_H_
41 #define	_ARPA_TELNET_H_
42 
43 /*
44  * Definitions for the TELNET protocol.
45  */
46 #define	IAC	255		/* interpret as command: */
47 #define	DONT	254		/* you are not to use option */
48 #define	DO	253		/* please, you use option */
49 #define	WONT	252		/* I won't use option */
50 #define	WILL	251		/* I will use option */
51 #define	SB	250		/* interpret as subnegotiation */
52 #define	GA	249		/* you may reverse the line */
53 #define	EL	248		/* erase the current line */
54 #define	EC	247		/* erase the current character */
55 #define	AYT	246		/* are you there */
56 #define	AO	245		/* abort output--but let prog finish */
57 #define	IP	244		/* interrupt process--permanently */
58 #define	BREAK	243		/* break */
59 #define	DM	242		/* data mark--for connect. cleaning */
60 #define	NOP	241		/* nop */
61 #define	SE	240		/* end sub negotiation */
62 #define EOR     239             /* end of record (transparent mode) */
63 #define	ABORT	238		/* Abort process */
64 #define	SUSP	237		/* Suspend process */
65 #define	xEOF	236		/* End of file: EOF is already used... */
66 
67 #define SYNCH	242		/* for telfunc calls */
68 
69 #ifdef TELCMDS
70 const char *telcmds[] = {
71 	"EOF", "SUSP", "ABORT", "EOR",
72 	"SE", "NOP", "DMARK", "BRK", "IP", "AO", "AYT", "EC",
73 	"EL", "GA", "SB", "WILL", "WONT", "DO", "DONT", "IAC", 0,
74 };
75 #else
76 extern char *telcmds[];
77 #endif
78 
79 #define	TELCMD_FIRST	xEOF
80 #define	TELCMD_LAST	IAC
81 #define	TELCMD_OK(x)	((unsigned int)(x) <= TELCMD_LAST && \
82 			 (unsigned int)(x) >= TELCMD_FIRST)
83 #define	TELCMD(x)	telcmds[(x)-TELCMD_FIRST]
84 
85 /* telnet options */
86 #define TELOPT_BINARY	0	/* 8-bit data path */
87 #define TELOPT_ECHO	1	/* echo */
88 #define	TELOPT_RCP	2	/* prepare to reconnect */
89 #define	TELOPT_SGA	3	/* suppress go ahead */
90 #define	TELOPT_NAMS	4	/* approximate message size */
91 #define	TELOPT_STATUS	5	/* give status */
92 #define	TELOPT_TM	6	/* timing mark */
93 #define	TELOPT_RCTE	7	/* remote controlled transmission and echo */
94 #define TELOPT_NAOL 	8	/* negotiate about output line width */
95 #define TELOPT_NAOP 	9	/* negotiate about output page size */
96 #define TELOPT_NAOCRD	10	/* negotiate about CR disposition */
97 #define TELOPT_NAOHTS	11	/* negotiate about horizontal tabstops */
98 #define TELOPT_NAOHTD	12	/* negotiate about horizontal tab disposition */
99 #define TELOPT_NAOFFD	13	/* negotiate about formfeed disposition */
100 #define TELOPT_NAOVTS	14	/* negotiate about vertical tab stops */
101 #define TELOPT_NAOVTD	15	/* negotiate about vertical tab disposition */
102 #define TELOPT_NAOLFD	16	/* negotiate about output LF disposition */
103 #define TELOPT_XASCII	17	/* extended ascic character set */
104 #define	TELOPT_LOGOUT	18	/* force logout */
105 #define	TELOPT_BM	19	/* byte macro */
106 #define	TELOPT_DET	20	/* data entry terminal */
107 #define	TELOPT_SUPDUP	21	/* supdup protocol */
108 #define	TELOPT_SUPDUPOUTPUT 22	/* supdup output */
109 #define	TELOPT_SNDLOC	23	/* send location */
110 #define	TELOPT_TTYPE	24	/* terminal type */
111 #define	TELOPT_EOR	25	/* end or record */
112 #define	TELOPT_TUID	26	/* TACACS user identification */
113 #define	TELOPT_OUTMRK	27	/* output marking */
114 #define	TELOPT_TTYLOC	28	/* terminal location number */
115 #define	TELOPT_3270REGIME 29	/* 3270 regime */
116 #define	TELOPT_X3PAD	30	/* X.3 PAD */
117 #define	TELOPT_NAWS	31	/* window size */
118 #define	TELOPT_TSPEED	32	/* terminal speed */
119 #define	TELOPT_LFLOW	33	/* remote flow control */
120 #define TELOPT_LINEMODE	34	/* Linemode option */
121 #define TELOPT_XDISPLOC	35	/* X Display Location */
122 #define TELOPT_OLD_ENVIRON 36	/* Old - Environment variables */
123 #define	TELOPT_AUTHENTICATION 37/* Authenticate */
124 #define	TELOPT_ENCRYPT	38	/* Encryption option */
125 #define TELOPT_NEW_ENVIRON 39	/* New - Environment variables */
126 #define	TELOPT_EXOPL	255	/* extended-options-list */
127 
128 
129 #define	NTELOPTS	(1+TELOPT_NEW_ENVIRON)
130 #ifdef TELOPTS
131 const char *telopts[NTELOPTS+1] = {
132 	"BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD", "NAME",
133 	"STATUS", "TIMING MARK", "RCTE", "NAOL", "NAOP",
134 	"NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS",
135 	"NAOVTD", "NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO",
136 	"DATA ENTRY TERMINAL", "SUPDUP", "SUPDUP OUTPUT",
137 	"SEND LOCATION", "TERMINAL TYPE", "END OF RECORD",
138 	"TACACS UID", "OUTPUT MARKING", "TTYLOC",
139 	"3270 REGIME", "X.3 PAD", "NAWS", "TSPEED", "LFLOW",
140 	"LINEMODE", "XDISPLOC", "OLD-ENVIRON", "AUTHENTICATION",
141 	"ENCRYPT", "NEW-ENVIRON",
142 	0,
143 };
144 #define	TELOPT_FIRST	TELOPT_BINARY
145 #define	TELOPT_LAST	TELOPT_NEW_ENVIRON
146 #define	TELOPT_OK(x)	((unsigned int)(x) <= TELOPT_LAST)
147 #define	TELOPT(x)	telopts[(x)-TELOPT_FIRST]
148 #endif
149 
150 /* sub-option qualifiers */
151 #define	TELQUAL_IS	0	/* option is... */
152 #define	TELQUAL_SEND	1	/* send option */
153 #define	TELQUAL_INFO	2	/* ENVIRON: informational version of IS */
154 #define	TELQUAL_REPLY	2	/* AUTHENTICATION: client version of IS */
155 #define	TELQUAL_NAME	3	/* AUTHENTICATION: client version of IS */
156 
157 #define	LFLOW_OFF		0	/* Disable remote flow control */
158 #define	LFLOW_ON		1	/* Enable remote flow control */
159 #define	LFLOW_RESTART_ANY	2	/* Restart output on any char */
160 #define	LFLOW_RESTART_XON	3	/* Restart output only on XON */
161 
162 /*
163  * LINEMODE suboptions
164  */
165 
166 #define	LM_MODE		1
167 #define	LM_FORWARDMASK	2
168 #define	LM_SLC		3
169 
170 #define	MODE_EDIT	0x01
171 #define	MODE_TRAPSIG	0x02
172 #define	MODE_ACK	0x04
173 #define MODE_SOFT_TAB	0x08
174 #define MODE_LIT_ECHO	0x10
175 
176 #define	MODE_MASK	0x1f
177 
178 /* Not part of protocol, but needed to simplify things... */
179 #define MODE_FLOW		0x0100
180 #define MODE_ECHO		0x0200
181 #define MODE_INBIN		0x0400
182 #define MODE_OUTBIN		0x0800
183 #define MODE_FORCE		0x1000
184 
185 #define	SLC_SYNCH	1
186 #define	SLC_BRK		2
187 #define	SLC_IP		3
188 #define	SLC_AO		4
189 #define	SLC_AYT		5
190 #define	SLC_EOR		6
191 #define	SLC_ABORT	7
192 #define	SLC_EOF		8
193 #define	SLC_SUSP	9
194 #define	SLC_EC		10
195 #define	SLC_EL		11
196 #define	SLC_EW		12
197 #define	SLC_RP		13
198 #define	SLC_LNEXT	14
199 #define	SLC_XON		15
200 #define	SLC_XOFF	16
201 #define	SLC_FORW1	17
202 #define	SLC_FORW2	18
203 #define	SLC_MCL         19
204 #define	SLC_MCR         20
205 #define	SLC_MCWL        21
206 #define	SLC_MCWR        22
207 #define	SLC_MCBOL       23
208 #define	SLC_MCEOL       24
209 #define	SLC_INSRT       25
210 #define	SLC_OVER        26
211 #define	SLC_ECR         27
212 #define	SLC_EWR         28
213 #define	SLC_EBOL        29
214 #define	SLC_EEOL        30
215 
216 #define	NSLC		30
217 
218 /*
219  * For backwards compatibility, we define SLC_NAMES to be the
220  * list of names if SLC_NAMES is not defined.
221  */
222 #define	SLC_NAMELIST	"0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR",	\
223 			"ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP",	\
224 			"LNEXT", "XON", "XOFF", "FORW1", "FORW2",	\
225 			"MCL", "MCR", "MCWL", "MCWR", "MCBOL",		\
226 			"MCEOL", "INSRT", "OVER", "ECR", "EWR",		\
227 			"EBOL", "EEOL",					\
228 			0,
229 
230 #ifdef	SLC_NAMES
231 const char *slc_names[] = {
232 	SLC_NAMELIST
233 };
234 #else
235 extern char *slc_names[];
236 #define	SLC_NAMES SLC_NAMELIST
237 #endif
238 
239 #define	SLC_NAME_OK(x)	((unsigned int)(x) <= NSLC)
240 #define SLC_NAME(x)	slc_names[x]
241 
242 #define	SLC_NOSUPPORT	0
243 #define	SLC_CANTCHANGE	1
244 #define	SLC_VARIABLE	2
245 #define	SLC_DEFAULT	3
246 #define	SLC_LEVELBITS	0x03
247 
248 #define	SLC_FUNC	0
249 #define	SLC_FLAGS	1
250 #define	SLC_VALUE	2
251 
252 #define	SLC_ACK		0x80
253 #define	SLC_FLUSHIN	0x40
254 #define	SLC_FLUSHOUT	0x20
255 
256 #define	OLD_ENV_VAR	1
257 #define	OLD_ENV_VALUE	0
258 #define	NEW_ENV_VAR	0
259 #define	NEW_ENV_VALUE	1
260 #define	ENV_ESC		2
261 #define ENV_USERVAR	3
262 
263 /*
264  * AUTHENTICATION suboptions
265  */
266 
267 /*
268  * Who is authenticating who ...
269  */
270 #define	AUTH_WHO_CLIENT		0	/* Client authenticating server */
271 #define	AUTH_WHO_SERVER		1	/* Server authenticating client */
272 #define	AUTH_WHO_MASK		1
273 
274 /*
275  * amount of authentication done
276  */
277 #define	AUTH_HOW_ONE_WAY	0
278 #define	AUTH_HOW_MUTUAL		2
279 #define	AUTH_HOW_MASK		2
280 
281 /*
282  * should we be encrypting? (not yet formally standardized)
283  */
284 #define AUTH_ENCRYPT_OFF	0
285 #define AUTH_ENCRYPT_ON		4
286 #define AUTH_ENCRYPT_MASK	4
287 
288 #define	AUTHTYPE_NULL		0
289 #define	AUTHTYPE_KERBEROS_V4	1
290 #define	AUTHTYPE_KERBEROS_V5	2
291 #define	AUTHTYPE_SPX		3
292 #define	AUTHTYPE_MINK		4
293 #define	AUTHTYPE_CNT		5
294 
295 #define	AUTHTYPE_TEST		99
296 
297 #ifdef	AUTH_NAMES
298 const char *authtype_names[] = {
299 	"NULL", "KERBEROS_V4", "KERBEROS_V5", "SPX", "MINK", 0,
300 };
301 #else
302 extern char *authtype_names[];
303 #endif
304 
305 #define	AUTHTYPE_NAME_OK(x)	((unsigned int)(x) < AUTHTYPE_CNT)
306 #define	AUTHTYPE_NAME(x)	authtype_names[x]
307 
308 /*
309  * ENCRYPTion suboptions
310  */
311 #define	ENCRYPT_IS		0	/* I pick encryption type ... */
312 #define	ENCRYPT_SUPPORT		1	/* I support encryption types ... */
313 #define	ENCRYPT_REPLY		2	/* Initial setup response */
314 #define	ENCRYPT_START		3	/* Am starting to send encrypted */
315 #define	ENCRYPT_END		4	/* Am ending encrypted */
316 #define	ENCRYPT_REQSTART	5	/* Request you start encrypting */
317 #define	ENCRYPT_REQEND		6	/* Request you send encrypting */
318 #define	ENCRYPT_ENC_KEYID	7
319 #define	ENCRYPT_DEC_KEYID	8
320 #define	ENCRYPT_CNT		9
321 
322 #define	ENCTYPE_ANY		0
323 #define	ENCTYPE_DES_CFB64	1
324 #define	ENCTYPE_DES_OFB64	2
325 #define	ENCTYPE_CNT		3
326 
327 #ifdef	ENCRYPT_NAMES
328 const char *encrypt_names[] = {
329 	"IS", "SUPPORT", "REPLY", "START", "END",
330 	"REQUEST-START", "REQUEST-END", "ENC-KEYID", "DEC-KEYID",
331 	0,
332 };
333 const char *enctype_names[] = {
334 	"ANY", "DES_CFB64",  "DES_OFB64",  0,
335 };
336 #else
337 extern char *encrypt_names[];
338 extern char *enctype_names[];
339 #endif
340 
341 
342 #define	ENCRYPT_NAME_OK(x)	((unsigned int)(x) < ENCRYPT_CNT)
343 #define	ENCRYPT_NAME(x)		encrypt_names[x]
344 
345 #define	ENCTYPE_NAME_OK(x)	((unsigned int)(x) < ENCTYPE_CNT)
346 #define	ENCTYPE_NAME(x)		enctype_names[x]
347 
348 #endif /* _ARPA_TELNET_H_ */
349