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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [pppd/] [lcp.h] - Blame information for rev 173

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1 30 unneback
/*
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 * lcp.h - Link Control Protocol definitions.
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 *
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 * Copyright (c) 1989 Carnegie Mellon University.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms are permitted
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 * provided that the above copyright notice and this paragraph are
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 * duplicated in all such forms and that any documentation,
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 * advertising materials, and other materials related to such
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 * distribution and use acknowledge that the software was developed
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 * by Carnegie Mellon University.  The name of the
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 * University may not be used to endorse or promote products derived
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 * from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 *
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 * $Id: lcp.h,v 1.2 2001-09-27 12:01:57 chris Exp $
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 */
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/*
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 * Options.
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 */
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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_CALLBACK     13      /* callback */
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/*
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 * LCP-specific packet types.
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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 CBCP_OPT        6       /* Use callback control protocol */
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/*
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 * The state of options is described by an lcp_options structure.
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 */
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typedef struct lcp_options {
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    int passive : 1;            /* Don't die if we don't get a response */
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    int silent : 1;             /* Wait for the other end to start first */
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    int restart : 1;            /* Restart vs. exit after close */
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    int neg_mru : 1;            /* Negotiate the MRU? */
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    int neg_asyncmap : 1;       /* Negotiate the async map? */
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    int neg_upap : 1;           /* Ask for UPAP authentication? */
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    int neg_chap : 1;           /* Ask for CHAP authentication? */
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    int neg_magicnumber : 1;    /* Ask for magic number? */
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    int neg_pcompression : 1;   /* HDLC Protocol Field Compression? */
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    int neg_accompression : 1;  /* HDLC Address/Control Field Compression? */
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    int neg_lqr : 1;            /* Negotiate use of Link Quality Reports */
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    int neg_cbcp : 1;           /* Negotiate use of CBCP */
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    u_short mru;                /* Value of MRU */
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    u_char chap_mdtype;         /* which MD type (hashing algorithm) */
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    u_int32_t asyncmap;         /* Value of async map */
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    u_int32_t magicnumber;
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    int numloops;               /* Number of loops during magic number neg. */
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    u_int32_t lqr_period;       /* Reporting period for LQR 1/100ths second */
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} lcp_options;
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extern fsm lcp_fsm[];
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extern lcp_options lcp_wantoptions[];
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extern lcp_options lcp_gotoptions[];
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extern lcp_options lcp_allowoptions[];
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extern lcp_options lcp_hisoptions[];
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extern u_int32_t xmit_accm[][8];
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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 __P((int));
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void lcp_close __P((int, char *));
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void lcp_lowerup __P((int));
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void lcp_lowerdown __P((int));
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void lcp_sprotrej __P((int, u_char *, int));    /* 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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