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111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/*
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* lcp.h - Link Control Protocol definitions.
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*
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* Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The name "Carnegie Mellon University" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For permission or any legal
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* details, please contact
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* Office of Technology Transfer
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* Carnegie Mellon University
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* 5000 Forbes Avenue
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* Pittsburgh, PA 15213-3890
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* (412) 268-4387, fax: (412) 268-7395
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* tech-transfer@andrew.cmu.edu
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*
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* 4. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by Computing Services
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* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
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*
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* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
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* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $Id: lcp.h,v 1.20 2004/11/14 22:53:42 carlsonj Exp $
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*/
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#include "lwip/opt.h"
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#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
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#ifndef LCP_H
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#define LCP_H
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#include "ppp.h"
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/*
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* Options.
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*/
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#define CI_VENDOR 0 /* Vendor Specific */
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#define CI_MRU 1 /* Maximum Receive Unit */
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#define CI_ASYNCMAP 2 /* Async Control Character Map */
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#define CI_AUTHTYPE 3 /* Authentication Type */
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#define CI_QUALITY 4 /* Quality Protocol */
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#define CI_MAGICNUMBER 5 /* Magic Number */
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#define CI_PCOMPRESSION 7 /* Protocol Field Compression */
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#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
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#define CI_FCSALTERN 9 /* FCS-Alternatives */
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#define CI_SDP 10 /* Self-Describing-Pad */
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#define CI_NUMBERED 11 /* Numbered-Mode */
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#define CI_CALLBACK 13 /* callback */
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#define CI_MRRU 17 /* max reconstructed receive unit; multilink */
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#define CI_SSNHF 18 /* short sequence numbers for multilink */
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#define CI_EPDISC 19 /* endpoint discriminator */
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#define CI_MPPLUS 22 /* Multi-Link-Plus-Procedure */
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#define CI_LDISC 23 /* Link-Discriminator */
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#define CI_LCPAUTH 24 /* LCP Authentication */
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#define CI_COBS 25 /* Consistent Overhead Byte Stuffing */
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#define CI_PREFELIS 26 /* Prefix Elision */
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#define CI_MPHDRFMT 27 /* MP Header Format */
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#define CI_I18N 28 /* Internationalization */
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#define CI_SDL 29 /* Simple Data Link */
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/*
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* LCP-specific packet types (code numbers).
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*/
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#define PROTREJ 8 /* Protocol Reject */
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#define ECHOREQ 9 /* Echo Request */
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#define ECHOREP 10 /* Echo Reply */
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#define DISCREQ 11 /* Discard Request */
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#define IDENTIF 12 /* Identification */
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#define TIMEREM 13 /* Time Remaining */
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/* Value used as data for CI_CALLBACK option */
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#define CBCP_OPT 6 /* Use callback control protocol */
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#define DEFMRU 1500 /* Try for this */
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#define MINMRU 128 /* No MRUs below this */
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#define MAXMRU 16384 /* Normally limit MRU to this */
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void lcp_open(ppp_pcb *pcb);
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void lcp_close(ppp_pcb *pcb, char *reason);
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void lcp_lowerup(ppp_pcb *pcb);
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void lcp_lowerdown(ppp_pcb *pcb);
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void lcp_sprotrej(ppp_pcb *pcb, u_char *p, int len); /* send protocol reject */
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extern struct protent lcp_protent;
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/* Default number of times we receive our magic number from the peer
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before deciding the link is looped-back. */
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#define DEFLOOPBACKFAIL 10
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#endif /* LCP_H */
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#endif /* PPP_SUPPORT */
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