cc6a66f20e
Submitted by: Mike Mitchell, supervisor@alb.asctmd.com This is a bulk mport of Mike's IPX/SPX protocol stacks and all the related gunf that goes with it.. it is not guaranteed to work 100% correctly at this time but as we had several people trying to work on it I figured it would be better to get it checked in so they could all get teh same thing to work on.. Mikes been using it for a year or so but on 2.0 more changes and stuff will be merged in from other developers now that this is in. Mike Mitchell, Network Engineer AMTECH Systems Corporation, Technology and Manufacturing 8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000 supervisor@alb.asctmd.com
149 lines
6.0 KiB
C
149 lines
6.0 KiB
C
/*
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* if_ppp.h - Point-to-Point 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: if_ppp.h,v 1.3 1995/05/30 08:08:09 rgrimes Exp $
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*/
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#ifndef _IF_PPP_H_
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#define _IF_PPP_H_
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/*
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* Standard PPP header.
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*/
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struct ppp_header {
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u_char ph_address; /* Address Field */
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u_char ph_control; /* Control Field */
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u_short ph_protocol; /* Protocol Field */
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};
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#define PPP_HDRLEN 4 /* sizeof(struct ppp_header) must be 4 */
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#define PPP_FCSLEN 2 /* octets for FCS */
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#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
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#define PPP_UI 0x03 /* Unnumbered Information */
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#define PPP_FLAG 0x7e /* Flag Sequence */
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#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
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#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
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/*
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* Protocol field values.
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*/
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#define PPP_IP 0x21 /* Internet Protocol */
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#define PPP_XNS 0x25 /* Xerox NS */
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#define PPP_IPX 0x2b /* IPX Datagram (RFC1552) */
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#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
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#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
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#define PPP_COMP 0xfd /* compressed packet */
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#define PPP_LCP 0xc021 /* Link Control Protocol */
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#define PPP_IPXCP 0x802b /* IPX Control Protocol (RFC1552) */
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#define PPP_CCP 0x80fd /* Compression Control Protocol */
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/*
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* Important FCS values.
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*/
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#define PPP_INITFCS 0xffff /* Initial FCS value */
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#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
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#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
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/*
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* Packet sizes
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*/
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#define PPP_MTU 1500 /* Default MTU (size of Info field) */
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#define PPP_MRU 1500 /* Default MRU (max receive unit) */
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#define PPP_MAXMRU 65000 /* Largest MRU we allow */
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/* Extended asyncmap - allows any character to be escaped. */
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typedef u_long ext_accm[8];
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/*
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* Structure describing each ppp unit.
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*/
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struct ppp_softc {
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struct ifnet sc_if; /* network-visible interface */
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u_int sc_flags; /* see below */
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void *sc_devp; /* pointer to device-dependent structure */
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int (*sc_start) __P((struct ppp_softc *)); /* start routine */
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short sc_mru; /* max receive unit */
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pid_t sc_xfer; /* used in xferring unit to another dev */
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struct ifqueue sc_inq; /* TTY side input queue */
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struct ifqueue sc_fastq; /* IP interactive output packet queue */
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#ifdef VJC
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struct slcompress sc_comp; /* vjc control buffer */
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#endif
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u_int sc_bytessent; /* count of octets sent */
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u_int sc_bytesrcvd; /* count of octets received */
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caddr_t sc_bpf; /* hook for BPF */
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/* Device-dependent part for async lines. */
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ext_accm sc_asyncmap; /* async control character map */
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u_long sc_rasyncmap; /* receive async control char map */
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struct mbuf *sc_outm; /* mbuf chain being output currently */
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struct mbuf *sc_m; /* pointer to input mbuf chain */
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struct mbuf *sc_mc; /* pointer to current input mbuf */
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char *sc_mp; /* pointer to next char in input mbuf */
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short sc_ilen; /* length of input-packet-so-far */
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u_short sc_fcs; /* FCS so far (input) */
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u_short sc_outfcs; /* FCS so far for output packet */
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u_char sc_rawin[16]; /* chars as received */
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int sc_rawin_count; /* # in sc_rawin */
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};
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/* flags */
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#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */
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#define SC_COMP_AC 0x00000002 /* header compression (output) */
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#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */
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#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */
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#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */
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#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */
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#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */
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#define SC_DEBUG 0x00010000 /* enable debug messages */
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#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */
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#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */
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#define SC_LOG_RAWIN 0x00080000 /* log all chars received */
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#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */
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#define SC_MASK 0x0fffffff /* bits that user can change */
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/* state bits */
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#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */
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#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */
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#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */
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#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 0 */
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#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */
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#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */
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/* this stuff doesn't belong here... */
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#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
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#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
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#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */
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#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */
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#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */
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#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */
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#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */
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#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */
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#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */
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#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */
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#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
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#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
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#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */
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#if !defined(ifr_mtu)
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#define ifr_mtu ifr_metric
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#endif
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#endif /* _IF_PPP_H_ */
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