RTEMS: cpukit/pppd/lcp.h Source File

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lcp.h
1/*
2 * lcp.h - Link Control Protocol definitions.
3 *
4 * Copyright (c) 1989 Carnegie Mellon University.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by Carnegie Mellon University. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * $Id$
20 */
21
22/*
23 * Options.
24 */
25#define CI_MRU 1 /* Maximum Receive Unit */
26#define CI_ASYNCMAP 2 /* Async Control Character Map */
27#define CI_AUTHTYPE 3 /* Authentication Type */
28#define CI_QUALITY 4 /* Quality Protocol */
29#define CI_MAGICNUMBER 5 /* Magic Number */
30#define CI_PCOMPRESSION 7 /* Protocol Field Compression */
31#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
32#define CI_CALLBACK 13 /* callback */
33
34/*
35 * LCP-specific packet types.
36 */
37#define PROTREJ 8 /* Protocol Reject */
38#define ECHOREQ 9 /* Echo Request */
39#define ECHOREP 10 /* Echo Reply */
40#define DISCREQ 11 /* Discard Request */
41#define CBCP_OPT 6 /* Use callback control protocol */
42
43/*
44 * The state of options is described by an lcp_options structure.
45 */
46 typedef struct lcp_options {
47 bool passive; /* Don't die if we don't get a response */
48 bool silent; /* Wait for the other end to start first */
49 bool restart; /* Restart vs. exit after close */
50 bool neg_mru; /* Negotiate the MRU? */
51 bool neg_asyncmap; /* Negotiate the async map? */
52 bool neg_upap; /* Ask for UPAP authentication? */
53 bool neg_chap; /* Ask for CHAP authentication? */
54 bool neg_magicnumber; /* Ask for magic number? */
55 bool neg_pcompression; /* HDLC Protocol Field Compression? */
56 bool neg_accompression; /* HDLC Address/Control Field Compression? */
57 bool neg_lqr; /* Negotiate use of Link Quality Reports */
58 bool neg_cbcp; /* Negotiate use of CBCP */
59 int mru; /* Value of MRU */
60 u_char chap_mdtype; /* which MD type (hashing algorithm) */
61 uint32_t asyncmap; /* Value of async map */
62 uint32_t magicnumber;
63 int numloops; /* Number of loops during magic number neg. */
64 uint32_t lqr_period; /* Reporting period for LQR 1/100ths second */
65} lcp_options;
66
67extern fsm lcp_fsm[];
68extern lcp_options lcp_wantoptions[];
69extern lcp_options lcp_gotoptions[];
70extern lcp_options lcp_allowoptions[];
71extern lcp_options lcp_hisoptions[];
72extern uint32_t xmit_accm[][8];
73
74#define DEFMRU 1500 /* Try for this */
75#define MINMRU 128 /* No MRUs below this */
76#define MAXMRU 16384 /* Normally limit MRU to this */
77
78void lcp_open(int);
79void lcp_close(int, char *);
80void lcp_lowerup(int);
81void lcp_lowerdown(int);
82void lcp_sprotrej(int, u_char *, int); /* send protocol reject */
83
84extern struct protent lcp_protent;
85
86/* Default number of times we receive our magic number from the peer
87 before deciding the link is looped-back. */
88#define DEFLOOPBACKFAIL 10
fsm
Definition: fsm.h:43
lcp_options
Definition: lcp.h:46
protent
Definition: pppd.h:249