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5.7

    1: 
    2: /*
    3:  * ccp.h
    4:  *
    5:  * Written by Archie Cobbs <archie@freebsd.org>
    6:  * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
    7:  * See ``COPYRIGHT.whistle''
    8:  */
    9: 
   10: #ifndef _CCP_H_
   11: #define	_CCP_H_
   12: 
   13: #include "defs.h"
   14: #include "fsm.h"
   15: #include "mbuf.h"
   16: #include "comp.h"
   17: #include "console.h"
   18: #include "command.h"
   19: #include "log.h"
   20: 
   21: #ifdef CCP_PRED1
   22: #include "ccp_pred1.h"
   23: #endif
   24: #ifdef CCP_DEFLATE
   25: #include "ccp_deflate.h"
   26: #endif
   27: #ifdef CCP_MPPC
   28: #include "ccp_mppc.h"
   29: #endif
   30: 
   31: #include <netgraph/ng_message.h>
   32: 
   33: /*
   34:  * DEFINITIONS
   35:  */
   36: 
   37:   /* Compression types */
   38:   #define CCP_TY_OUI		0	/* OUI */
   39:   #define CCP_TY_PRED1		1	/* Predictor type 1 */
   40:   #define CCP_TY_PRED2		2	/* Predictor type 2 */
   41:   #define CCP_TY_PUDDLE		3	/* Puddle Jumper */
   42:   #define CCP_TY_HWPPC		16	/* Hewlett-Packard PPC */
   43:   #define CCP_TY_STAC		17	/* Stac Electronics LZS */
   44:   #define CCP_TY_MPPC		18	/* Microsoft PPC */
   45:   #define CCP_TY_GAND		19	/* Gandalf FZA */
   46:   #define CCP_TY_V42BIS		20	/* V.42bis compression */
   47:   #define CCP_TY_BSD		21	/* BSD LZW Compress */
   48:   #define CCP_TY_LZS_DCP	23	/* LZS-DCP Compression Protocol */
   49:   #define CCP_TY_DEFLATE24	24	/* Gzip "deflate" compression WRONG! */
   50:   #define CCP_TY_DCE		25	/* Data Compression in Data Circuit-Terminating Equipment */
   51:   #define CCP_TY_DEFLATE	26	/* Gzip "deflate" compression */
   52:   #define CCP_TY_V44		27	/* V.44/LZJH Compression Protocol */
   53: 
   54:   #define CCP_OVERHEAD		2
   55: 
   56:   /* CCP state */
   57:   struct ccpstate {
   58:     struct fsm		fsm;		/* CCP FSM */
   59:     struct optinfo	options;	/* configured protocols */
   60:     CompType		xmit;		/* xmit protocol */
   61:     CompType		recv;		/* recv protocol */
   62:     uint32_t		self_reject;	/* types rejected by me */
   63:     uint32_t		peer_reject;	/* types rejected by peer */
   64: #ifdef CCP_PRED1
   65:     struct pred1info	pred1;		/* Predictor-1 state */
   66: #endif
   67: #ifdef CCP_DEFLATE
   68:     struct deflateinfo	deflate;	/* Deflate state */
   69: #endif
   70: #ifdef CCP_MPPC
   71:     struct mppcinfo	mppc;		/* MPPC/MPPE state */
   72: #endif
   73:     ng_ID_t		comp_node_id;	/* compressor node id */
   74:     ng_ID_t		decomp_node_id;	/* decompressor node id */
   75:     uint32_t		recv_resets;	/* Number of ResetReq we have got from other side */
   76:     uint32_t		xmit_resets;	/* Number of ResetReq we have sent to other side */
   77:     u_char		crypt_check;	/* We checked for required encryption */
   78:   };
   79:   typedef struct ccpstate	*CcpState;
   80: 
   81:   #define CCP_PEER_REJECTED(p,x)	((p)->peer_reject & (1<<(x)))
   82:   #define CCP_SELF_REJECTED(p,x)	((p)->self_reject & (1<<(x)))
   83: 
   84:   #define CCP_PEER_REJ(p,x)	do{(p)->peer_reject |= (1<<(x));}while(0)
   85:   #define CCP_SELF_REJ(p,x)	do{(p)->self_reject |= (1<<(x));}while(0)
   86: 
   87: /*
   88:  * VARIABLES
   89:  */
   90: 
   91:   extern const struct cmdtab	CcpSetCmds[];
   92: 
   93:   extern int		gCcpCsock;		/* Socket node control socket */
   94:   extern int		gCcpDsock;		/* Socket node data socket */
   95: 
   96: /*
   97:  * FUNCTIONS
   98:  */
   99: 
  100:   extern int	CcpsInit(void);
  101:   extern void	CcpsShutdown(void);
  102: 
  103:   extern void	CcpInit(Bund b);
  104:   extern void	CcpInst(Bund b, Bund bt);
  105:   extern void	CcpUp(Bund b);
  106:   extern void	CcpDown(Bund b);
  107:   extern void	CcpOpen(Bund b);
  108:   extern void	CcpClose(Bund b);
  109:   extern int	CcpOpenCmd(Context ctx);
  110:   extern int	CcpCloseCmd(Context ctx);
  111:   extern void	CcpInput(Bund b, Mbuf bp);
  112:   extern Mbuf	CcpDataInput(Bund b, Mbuf bp);
  113:   extern Mbuf	CcpDataOutput(Bund b, Mbuf bp);
  114:   extern int	CcpSubtractBloat(Bund b, int size);
  115:   extern void	CcpSendResetReq(Bund b);
  116:   extern void	CcpRecvMsg(Bund b, struct ng_mesg *msg, int len);
  117:   extern int	CcpStat(Context ctx, int ac, char *av[], void *arg);
  118: 
  119: #endif
  120: