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1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted
6: * provided that the above copyright notice and this paragraph are
7: * duplicated in all such forms and that any documentation,
8: * advertising materials, and other materials related to such
9: * distribution and use acknowledge that the software was developed
10: * by the University of California, Berkeley. The name of the
11: * University may not be used to endorse or promote products derived
12: * from this software without specific prior written permission.
13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16: *
17: * @(#)telnet.h 4.4 (Berkeley) 9/1/89
18: */
19:
20: /*
21: * Definitions for the TELNET protocol.
22: */
23: #define IAC 255 /* interpret as command: */
24: #define DONT 254 /* you are not to use option */
25: #define DO 253 /* please, you use option */
26: #define WONT 252 /* I won't use option */
27: #define WILL 251 /* I will use option */
28: #define SB 250 /* interpret as subnegotiation */
29: #define GA 249 /* you may reverse the line */
30: #define EL 248 /* erase the current line */
31: #define EC 247 /* erase the current character */
32: #define AYT 246 /* are you there */
33: #define AO 245 /* abort output--but let prog finish */
34: #define IP 244 /* interrupt process--permanently */
35: #define BREAK 243 /* break */
36: #define DM 242 /* data mark--for connect. cleaning */
37: #define NOP 241 /* nop */
38: #define SE 240 /* end sub negotiation */
39: #define EOR 239 /* end of record (transparent mode) */
40: #define ABORT 238 /* Abort process */
41: #define SUSP 237 /* Suspend process */
42: #define xEOF 236 /* End of file: EOF is already used... */
43:
44: #define SYNCH 242 /* for telfunc calls */
45:
46: #ifdef TELCMDS
47: char *telcmds[] = {
48: "EOF", "SUSP", "ABORT", "EOR",
49: "SE", "NOP", "DMARK", "BRK", "IP", "AO", "AYT", "EC",
50: "EL", "GA", "SB", "WILL", "WONT", "DO", "DONT", "IAC",
51: };
52: #define TELCMD_FIRST xEOF
53: #define TELCMD_LAST IAC
54: #define TELCMD_OK(x) ((x) <= TELCMD_LAST && (x) >= TELCMD_FIRST)
55: #define TELCMD(x) telcmds[(x)-TELCMD_FIRST]
56: #endif
57:
58: /* telnet options */
59: #define TELOPT_BINARY 0 /* 8-bit data path */
60: #define TELOPT_ECHO 1 /* echo */
61: #define TELOPT_RCP 2 /* prepare to reconnect */
62: #define TELOPT_SGA 3 /* suppress go ahead */
63: #define TELOPT_NAMS 4 /* approximate message size */
64: #define TELOPT_STATUS 5 /* give status */
65: #define TELOPT_TM 6 /* timing mark */
66: #define TELOPT_RCTE 7 /* remote controlled transmission and echo */
67: #define TELOPT_NAOL 8 /* negotiate about output line width */
68: #define TELOPT_NAOP 9 /* negotiate about output page size */
69: #define TELOPT_NAOCRD 10 /* negotiate about CR disposition */
70: #define TELOPT_NAOHTS 11 /* negotiate about horizontal tabstops */
71: #define TELOPT_NAOHTD 12 /* negotiate about horizontal tab disposition */
72: #define TELOPT_NAOFFD 13 /* negotiate about formfeed disposition */
73: #define TELOPT_NAOVTS 14 /* negotiate about vertical tab stops */
74: #define TELOPT_NAOVTD 15 /* negotiate about vertical tab disposition */
75: #define TELOPT_NAOLFD 16 /* negotiate about output LF disposition */
76: #define TELOPT_XASCII 17 /* extended ascic character set */
77: #define TELOPT_LOGOUT 18 /* force logout */
78: #define TELOPT_BM 19 /* byte macro */
79: #define TELOPT_DET 20 /* data entry terminal */
80: #define TELOPT_SUPDUP 21 /* supdup protocol */
81: #define TELOPT_SUPDUPOUTPUT 22 /* supdup output */
82: #define TELOPT_SNDLOC 23 /* send location */
83: #define TELOPT_TTYPE 24 /* terminal type */
84: #define TELOPT_EOR 25 /* end or record */
85: #define TELOPT_TUID 26 /* TACACS user identification */
86: #define TELOPT_OUTMRK 27 /* output marking */
87: #define TELOPT_TTYLOC 28 /* terminal location number */
88: #define TELOPT_3270REGIME 29 /* 3270 regime */
89: #define TELOPT_X3PAD 30 /* X.3 PAD */
90: #define TELOPT_NAWS 31 /* window size */
91: #define TELOPT_TSPEED 32 /* terminal speed */
92: #define TELOPT_LFLOW 33 /* remote flow control */
93: #define TELOPT_LINEMODE 34 /* Linemode option */
94: #define TELOPT_EXOPL 255 /* extended-options-list */
95:
96: #define NTELOPTS (1+TELOPT_LINEMODE)
97: #ifdef TELOPTS
98: char *telopts[NTELOPTS] = {
99: "BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD", "NAME",
100: "STATUS", "TIMING MARK", "RCTE", "NAOL", "NAOP",
101: "NAOCRD", "NAOHTS", "NAOHTD", "NAOFFD", "NAOVTS",
102: "NAOVTD", "NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO",
103: "DATA ENTRY TERMINAL", "SUPDUP", "SUPDUP OUTPUT",
104: "SEND LOCATION", "TERMINAL TYPE", "END OF RECORD",
105: "TACACS UID", "OUTPUT MARKING", "TTYLOC",
106: "3270 REGIME", "X.3 PAD", "NAWS", "TSPEED", "LFLOW",
107: "LINEMODE",
108: };
109: #define TELOPT_FIRST TELOPT_BINARY
110: #define TELOPT_LAST TELOPT_LINEMODE
111: #define TELOPT_OK(x) ((x) <= TELOPT_LAST && (x) >= TELOPT_FIRST)
112: #define TELOPT(x) telopts[(x)-TELOPT_FIRST]
113: #endif
114:
115: /* sub-option qualifiers */
116: #define TELQUAL_IS 0 /* option is... */
117: #define TELQUAL_SEND 1 /* send option */
118:
119: /*
120: * LINEMODE suboptions
121: */
122:
123: #define LM_MODE 1
124: #define LM_FORWARDMASK 2
125: #define LM_SLC 3
126:
127: #define MODE_EDIT 0x01
128: #define MODE_TRAPSIG 0x02
129: #define MODE_ACK 0x04
130:
131: #define MODE_MASK (MODE_EDIT|MODE_TRAPSIG|MODE_ACK)
132:
133: /* Not part of protocol, but needed to simplify things... */
134: #define MODE_FLOW 0x40
135: #define MODE_ECHO 0x80
136: #define MODE_FORCE 0x20
137:
138: #define SLC_SYNCH 1
139: #define SLC_BRK 2
140: #define SLC_IP 3
141: #define SLC_AO 4
142: #define SLC_AYT 5
143: #define SLC_EOR 6
144: #define SLC_ABORT 7
145: #define SLC_EOF 8
146: #define SLC_SUSP 9
147: #define SLC_EC 10
148: #define SLC_EL 11
149: #define SLC_EW 12
150: #define SLC_RP 13
151: #define SLC_LNEXT 14
152: #define SLC_XON 15
153: #define SLC_XOFF 16
154: #define SLC_FORW1 17
155: #define SLC_FORW2 18
156:
157: #define NSLC 18
158:
159: #define SLC_NAMES "0", "SYNCH", "BRK", "IP", "AO", "AYT", "EOR", \
160: "ABORT", "EOF", "SUSP", "EC", "EL", "EW", "RP", \
161: "LNEXT", "XON", "XOFF", "FORW1", "FORW2"
162:
163: #define SLC_NOSUPPORT 0
164: #define SLC_CANTCHANGE 1
165: #define SLC_VARIABLE 2
166: #define SLC_DEFAULT 3
167: #define SLC_LEVELBITS 0x03
168:
169: #define SLC_FUNC 0
170: #define SLC_FLAGS 1
171: #define SLC_VALUE 2
172:
173: #define SLC_ACK 0x80
174: #define SLC_FLUSHIN 0x40
175: #define SLC_FLUSHOUT 0x20
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