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5.7

    1: 
    2: /*
    3:  * lcp.h
    4:  *
    5:  * Written by Toshiharu OHNO <tony-o@iij.ad.jp>
    6:  * Copyright (c) 1993, Internet Initiative Japan, Inc. All rights reserved.
    7:  * See ``COPYRIGHT.iij''
    8:  * 
    9:  * Rewritten by Archie Cobbs <archie@freebsd.org>
   10:  * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
   11:  * See ``COPYRIGHT.whistle''
   12:  */
   13: 
   14: #ifndef _LCP_H_
   15: #define _LCP_H_
   16: 
   17: #include "fsm.h"
   18: #include "timer.h"
   19: #include "auth.h"
   20: 
   21: /*
   22:  * DEFINITIONS
   23:  */
   24: 
   25:   /* MRU defs */
   26:   #define LCP_DEFAULT_MRU	1500	/* Per RFC 1661 */
   27:   #define LCP_MIN_MRU		296
   28: 
   29:   #define LCP_NUM_AUTH_PROTOS	5
   30: 
   31:   struct lcpauthproto {
   32:     ushort		proto;
   33:     u_char		alg;
   34:     u_char		conf;
   35:   };
   36:   typedef struct lcpauthproto	*LcpAuthProto;
   37: 
   38:     enum lcp_phase {
   39: 	PHASE_DEAD = 0,
   40: 	PHASE_ESTABLISH,
   41: 	PHASE_AUTHENTICATE,
   42: 	PHASE_NETWORK,
   43: 	PHASE_TERMINATE
   44:     };
   45: 
   46:   /* Link state */
   47:   struct lcpstate {
   48: 
   49:     /* LCP phase of this link */
   50:     enum lcp_phase	phase;		/* PPP phase */
   51: 
   52:     /* Authorization info */
   53:     struct auth	auth;			/* Used during authorization phase */
   54: 
   55:     /* Peers negotiated parameters */
   56:     LcpAuthProto	peer_protos[LCP_NUM_AUTH_PROTOS];	/* list of acceptable auth-protos */
   57:     u_int32_t	peer_accmap;		/* Characters peer needs escaped */
   58:     u_int32_t	peer_magic;		/* Peer's magic number */
   59:     u_int16_t	peer_mru;		/* Peer's max reception packet size */
   60:     u_int16_t	peer_auth;		/* Auth requested by peer, or zero */
   61:     u_int16_t	peer_mrru;		/* MRRU set by peer, or zero */
   62:     u_char	peer_alg;		/* Peer's CHAP algorithm */
   63: 
   64:     /* My negotiated parameters */
   65:     u_char	want_alg;		/* My CHAP algorithm */
   66:     LcpAuthProto	want_protos[LCP_NUM_AUTH_PROTOS];	/* list of requestable auth-protos */
   67:     u_int32_t	want_accmap;		/* Control chars I want escaped */
   68:     u_int32_t	want_magic;		/* My magic number */
   69:     u_int16_t	want_mru;		/* My MRU */
   70:     u_int16_t	want_auth;		/* Auth I require of peer, or zero */
   71:     u_int16_t	want_mrru;		/* My MRRU, or zero if no MP */
   72: 
   73:     /* More params */
   74:     u_char	want_protocomp:1;	/* I want protocol compression */
   75:     u_char	want_acfcomp:1;		/* I want a&c field compression */
   76:     u_char	want_shortseq:1;	/* I want short seq numbers */
   77:     u_char	want_callback:1;	/* I want to be called back */
   78: 
   79:     u_char	peer_protocomp:1;	/* Peer wants protocol field comp */
   80:     u_char	peer_acfcomp:1;		/* Peer wants addr & ctrl field comp */
   81:     u_char	peer_shortseq:1;	/* Peer gets ML short seq numbers */
   82: 
   83:     /* Misc */
   84:     struct discrim	peer_discrim;	/* Peer's discriminator */
   85:     char	peer_ident[64];		/* Peer's LCP ident string */
   86:     uint32_t	peer_reject;		/* Request codes rejected by peer */
   87:     struct fsm	fsm;			/* Finite state machine */
   88:   };
   89:   typedef struct lcpstate	*LcpState;
   90: 
   91:   #define TY_VENDOR		0	/* Vendor specific */
   92:   #define TY_MRU		1	/* Maximum-Receive-Unit */
   93:   #define TY_ACCMAP		2	/* Async-Control-Character-Map */
   94:   #define TY_AUTHPROTO		3	/* Authentication-Protocol */
   95:   #define TY_QUALPROTO		4	/* Quality-Protocol */
   96:   #define TY_MAGICNUM		5	/* Magic-Number */
   97:   #define TY_RESERVED		6	/* RESERVED */
   98:   #define TY_PROTOCOMP		7	/* Protocol-Field-Compression */
   99:   #define TY_ACFCOMP		8	/* Address+Control-Field-Compression */
  100:   #define TY_FCSALT		9	/* FCS-Alternatives */
  101:   #define TY_SDP		10	/* Self-Dscribing-Padding */
  102:   #define TY_NUMMODE		11	/* Numbered-Mode */
  103:   #define TY_MULTILINK		12	/* Multi-link procedure (?) */
  104:   #define TY_CALLBACK		13	/* Callback */
  105:   #define TY_CONNECTTIME	14	/* Connect time */
  106:   #define TY_COMPFRAME		15	/* Compound-Frames */
  107:   #define TY_NDS		16	/* Nominal-Data-Encapsulation */
  108:   #define TY_MRRU		17	/* Multi-link MRRU size */
  109:   #define TY_SHORTSEQNUM	18	/* Short seq number header format */
  110:   #define TY_ENDPOINTDISC	19	/* Unique endpoint discrimiator */
  111:   #define TY_PROPRIETARY	20	/* Proprietary */
  112:   #define TY_DCEIDENTIFIER	21	/* DCE-Identifier */
  113:   #define TY_MULTILINKPLUS	22	/* Multi-Link-Plus-Procedure */
  114:   #define TY_BACP		23	/* Link Discriminator for BACP RFC2125 */
  115:   #define TY_LCPAUTHOPT		24	/* LCP-Authentication-Option */
  116:   #define TY_COBS		25	/* Consistent Overhead Byte Stuffing (COBS) */
  117:   #define TY_PREFIXELISION	26	/* Prefix elision */
  118:   #define TY_MULTILINKHEADERFMT	27	/* Multilink header format */
  119:   #define TY_INTERNAT		28	/* Internationalization */
  120:   #define TY_SDATALINKSONET	29	/* Simple Data Link on SONET/SDH */
  121: 
  122: /*
  123:  * FUNCTIONS
  124:  */
  125: 
  126:   extern void	LcpInit(Link l);
  127:   extern void	LcpInst(Link l, Link lt);
  128:   extern void	LcpShutdown(Link l);
  129:   extern void	LcpInput(Link l, Mbuf bp);
  130:   extern void	LcpUp(Link l);
  131:   extern void	LcpOpen(Link l);
  132:   extern void	LcpClose(Link l);
  133:   extern void	LcpDown(Link l);
  134:   extern int	LcpStat(Context ctx, int ac, char *av[], void *arg);
  135:   extern void	LcpAuthResult(Link l, int success);
  136: 
  137: #endif
  138: