| /* |
| * lcp.h - Link Control Protocol definitions. |
| * |
| * Copyright (c) 1989 Carnegie Mellon University. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms are permitted |
| * provided that the above copyright notice and this paragraph are |
| * duplicated in all such forms and that any documentation, |
| * advertising materials, and other materials related to such |
| * distribution and use acknowledge that the software was developed |
| * by Carnegie Mellon University. The name of the |
| * University may not be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * $Id: lcp.h,v 1.1 2008-08-04 06:11:51 winfred Exp $ |
| */ |
| |
| /* |
| * Options. |
| */ |
| #define CI_MRU 1 /* Maximum Receive Unit */ |
| #define CI_ASYNCMAP 2 /* Async Control Character Map */ |
| #define CI_AUTHTYPE 3 /* Authentication Type */ |
| #define CI_QUALITY 4 /* Quality Protocol */ |
| #define CI_MAGICNUMBER 5 /* Magic Number */ |
| #define CI_PCOMPRESSION 7 /* Protocol Field Compression */ |
| #define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */ |
| #define CI_CALLBACK 13 /* callback */ |
| #define CI_MRRU 17 /* max reconstructed receive unit; multilink */ |
| #define CI_SSNHF 18 /* short sequence numbers for multilink */ |
| #define CI_EPDISC 19 /* endpoint discriminator */ |
| |
| /* |
| * LCP-specific packet types. |
| */ |
| #define PROTREJ 8 /* Protocol Reject */ |
| #define ECHOREQ 9 /* Echo Request */ |
| #define ECHOREP 10 /* Echo Reply */ |
| #define DISCREQ 11 /* Discard Request */ |
| #define CBCP_OPT 6 /* Use callback control protocol */ |
| |
| /* |
| * The state of options is described by an lcp_options structure. |
| */ |
| typedef struct lcp_options { |
| bool passive; /* Don't die if we don't get a response */ |
| bool silent; /* Wait for the other end to start first */ |
| bool restart; /* Restart vs. exit after close */ |
| bool neg_mru; /* Negotiate the MRU? */ |
| bool neg_asyncmap; /* Negotiate the async map? */ |
| bool neg_upap; /* Ask for UPAP authentication? */ |
| bool neg_chap; /* Ask for CHAP authentication? */ |
| bool neg_magicnumber; /* Ask for magic number? */ |
| bool neg_pcompression; /* HDLC Protocol Field Compression? */ |
| bool neg_accompression; /* HDLC Address/Control Field Compression? */ |
| bool neg_lqr; /* Negotiate use of Link Quality Reports */ |
| bool neg_cbcp; /* Negotiate use of CBCP */ |
| bool use_digest; |
| bool use_chapms; |
| bool use_chapms_v2; |
| bool neg_mrru; /* negotiate multilink MRRU */ |
| bool neg_ssnhf; /* negotiate short sequence numbers */ |
| bool neg_endpoint; /* negotiate endpoint discriminator */ |
| int mru; /* Value of MRU */ |
| int mrru; /* Value of MRRU, and multilink enable */ |
| u_char chap_mdtype; /* which MD type (hashing algorithm) */ |
| u_int32_t asyncmap; /* Value of async map */ |
| u_int32_t magicnumber; |
| int numloops; /* Number of loops during magic number neg. */ |
| u_int32_t lqr_period; /* Reporting period for LQR 1/100ths second */ |
| struct epdisc endpoint; /* endpoint discriminator */ |
| } lcp_options; |
| |
| extern fsm lcp_fsm[]; |
| extern lcp_options lcp_wantoptions[]; |
| extern lcp_options lcp_gotoptions[]; |
| extern lcp_options lcp_allowoptions[]; |
| extern lcp_options lcp_hisoptions[]; |
| |
| #define DEFMRU 1500 /* Try for this */ |
| #define MINMRU 128 /* No MRUs below this */ |
| #define MAXMRU 16384 /* Normally limit MRU to this */ |
| |
| void lcp_open __P((int)); |
| void lcp_close __P((int, char *)); |
| void lcp_lowerup __P((int)); |
| void lcp_lowerdown __P((int)); |
| void lcp_sprotrej __P((int, u_char *, int)); /* send protocol reject */ |
| |
| extern struct protent lcp_protent; |
| |
| /* Default number of times we receive our magic number from the peer |
| before deciding the link is looped-back. */ |
| #define DEFLOOPBACKFAIL 10 |