1 | /*****************************************************************************
|
---|
2 | * lcp.h - Network Link Control Protocol header file.
|
---|
3 | *
|
---|
4 | * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
|
---|
5 | * portions Copyright (c) 1997 Global Election Systems Inc.
|
---|
6 | *
|
---|
7 | * The authors hereby grant permission to use, copy, modify, distribute,
|
---|
8 | * and license this software and its documentation for any purpose, provided
|
---|
9 | * that existing copyright notices are retained in all copies and that this
|
---|
10 | * notice and the following disclaimer are included verbatim in any
|
---|
11 | * distributions. No written agreement, license, or royalty fee is required
|
---|
12 | * for any of the authorized uses.
|
---|
13 | *
|
---|
14 | * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
|
---|
15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
---|
16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
---|
17 | * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
---|
18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
---|
19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
---|
20 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
---|
21 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
---|
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
---|
23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
---|
24 | *
|
---|
25 | ******************************************************************************
|
---|
26 | * REVISION HISTORY
|
---|
27 | *
|
---|
28 | * 03-01-01 Marc Boucher <marc@mbsi.ca>
|
---|
29 | * Ported to lwIP.
|
---|
30 | * 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
|
---|
31 | * Original derived from BSD codes.
|
---|
32 | *****************************************************************************/
|
---|
33 | /*
|
---|
34 | * lcp.h - Link Control Protocol definitions.
|
---|
35 | *
|
---|
36 | * Copyright (c) 1989 Carnegie Mellon University.
|
---|
37 | * All rights reserved.
|
---|
38 | *
|
---|
39 | * Redistribution and use in source and binary forms are permitted
|
---|
40 | * provided that the above copyright notice and this paragraph are
|
---|
41 | * duplicated in all such forms and that any documentation,
|
---|
42 | * advertising materials, and other materials related to such
|
---|
43 | * distribution and use acknowledge that the software was developed
|
---|
44 | * by Carnegie Mellon University. The name of the
|
---|
45 | * University may not be used to endorse or promote products derived
|
---|
46 | * from this software without specific prior written permission.
|
---|
47 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
---|
48 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
---|
49 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
---|
50 | *
|
---|
51 | * $Id: lcp.h 167 2016-03-08 11:37:45Z coas-nagasima $
|
---|
52 | */
|
---|
53 |
|
---|
54 | #ifndef LCP_H
|
---|
55 | #define LCP_H
|
---|
56 | /*
|
---|
57 | * Options.
|
---|
58 | */
|
---|
59 | #define CI_MRU 1 /* Maximum Receive Unit */
|
---|
60 | #define CI_ASYNCMAP 2 /* Async Control Character Map */
|
---|
61 | #define CI_AUTHTYPE 3 /* Authentication Type */
|
---|
62 | #define CI_QUALITY 4 /* Quality Protocol */
|
---|
63 | #define CI_MAGICNUMBER 5 /* Magic Number */
|
---|
64 | #define CI_PCOMPRESSION 7 /* Protocol Field Compression */
|
---|
65 | #define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
|
---|
66 | #define CI_CALLBACK 13 /* callback */
|
---|
67 | #define CI_MRRU 17 /* max reconstructed receive unit; multilink */
|
---|
68 | #define CI_SSNHF 18 /* short sequence numbers for multilink */
|
---|
69 | #define CI_EPDISC 19 /* endpoint discriminator */
|
---|
70 |
|
---|
71 | /*
|
---|
72 | * LCP-specific packet types (code numbers).
|
---|
73 | */
|
---|
74 | #define PROTREJ 8 /* Protocol Reject */
|
---|
75 | #define ECHOREQ 9 /* Echo Request */
|
---|
76 | #define ECHOREP 10 /* Echo Reply */
|
---|
77 | #define DISCREQ 11 /* Discard Request */
|
---|
78 | #define CBCP_OPT 6 /* Use callback control protocol */
|
---|
79 |
|
---|
80 | /*
|
---|
81 | * The state of options is described by an lcp_options structure.
|
---|
82 | */
|
---|
83 | typedef struct lcp_options {
|
---|
84 | u_int passive : 1; /* Don't die if we don't get a response */
|
---|
85 | u_int silent : 1; /* Wait for the other end to start first */
|
---|
86 | u_int restart : 1; /* Restart vs. exit after close */
|
---|
87 | u_int neg_mru : 1; /* Negotiate the MRU? */
|
---|
88 | u_int neg_asyncmap : 1; /* Negotiate the async map? */
|
---|
89 | u_int neg_upap : 1; /* Ask for UPAP authentication? */
|
---|
90 | u_int neg_chap : 1; /* Ask for CHAP authentication? */
|
---|
91 | u_int neg_magicnumber : 1; /* Ask for magic number? */
|
---|
92 | u_int neg_pcompression : 1; /* HDLC Protocol Field Compression? */
|
---|
93 | u_int neg_accompression : 1; /* HDLC Address/Control Field Compression? */
|
---|
94 | u_int neg_lqr : 1; /* Negotiate use of Link Quality Reports */
|
---|
95 | u_int neg_cbcp : 1; /* Negotiate use of CBCP */
|
---|
96 | #ifdef PPP_MULTILINK
|
---|
97 | u_int neg_mrru : 1; /* Negotiate multilink MRRU */
|
---|
98 | u_int neg_ssnhf : 1; /* Negotiate short sequence numbers */
|
---|
99 | u_int neg_endpoint : 1; /* Negotiate endpoint discriminator */
|
---|
100 | #endif
|
---|
101 | u_short mru; /* Value of MRU */
|
---|
102 | #ifdef PPP_MULTILINK
|
---|
103 | u_short mrru; /* Value of MRRU, and multilink enable */
|
---|
104 | #endif
|
---|
105 | u_char chap_mdtype; /* which MD type (hashing algorithm) */
|
---|
106 | u32_t asyncmap; /* Value of async map */
|
---|
107 | u32_t magicnumber;
|
---|
108 | int numloops; /* Number of loops during magic number neg. */
|
---|
109 | u32_t lqr_period; /* Reporting period for LQR 1/100ths second */
|
---|
110 | #ifdef PPP_MULTILINK
|
---|
111 | struct epdisc endpoint; /* endpoint discriminator */
|
---|
112 | #endif
|
---|
113 | } lcp_options;
|
---|
114 |
|
---|
115 | /*
|
---|
116 | * Values for phase from BSD pppd.h based on RFC 1661.
|
---|
117 | */
|
---|
118 | typedef enum {
|
---|
119 | PHASE_DEAD = 0,
|
---|
120 | PHASE_INITIALIZE,
|
---|
121 | PHASE_ESTABLISH,
|
---|
122 | PHASE_AUTHENTICATE,
|
---|
123 | PHASE_CALLBACK,
|
---|
124 | PHASE_NETWORK,
|
---|
125 | PHASE_TERMINATE
|
---|
126 | } LinkPhase;
|
---|
127 |
|
---|
128 |
|
---|
129 |
|
---|
130 | extern LinkPhase lcp_phase[NUM_PPP]; /* Phase of link session (RFC 1661) */
|
---|
131 | extern lcp_options lcp_wantoptions[];
|
---|
132 | extern lcp_options lcp_gotoptions[];
|
---|
133 | extern lcp_options lcp_allowoptions[];
|
---|
134 | extern lcp_options lcp_hisoptions[];
|
---|
135 | extern ext_accm xmit_accm[];
|
---|
136 |
|
---|
137 |
|
---|
138 | void lcp_init (int);
|
---|
139 | void lcp_open (int);
|
---|
140 | void lcp_close (int, char *);
|
---|
141 | void lcp_lowerup (int);
|
---|
142 | void lcp_lowerdown(int);
|
---|
143 | void lcp_sprotrej (int, u_char *, int); /* send protocol reject */
|
---|
144 |
|
---|
145 | extern struct protent lcp_protent;
|
---|
146 |
|
---|
147 | /* Default number of times we receive our magic number from the peer
|
---|
148 | before deciding the link is looped-back. */
|
---|
149 | #define DEFLOOPBACKFAIL 10
|
---|
150 |
|
---|
151 | #endif /* LCP_H */
|
---|