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removed stuff to ppp_defs.h
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Paul Mackerras
parent
ea95caea5a
commit
1faf57aa3a
@ -1,3 +1,5 @@
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/* $Id: if_ppp.h,v 1.6 1994/09/21 00:28:21 paulus Exp $ */
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/*
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* if_ppp.h - Point-to-Point Protocol definitions.
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*
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@ -15,122 +17,20 @@
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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 1.5 1994/09/16 01:54:06 paulus 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_ADDRESS(p) (((u_char *)(p))[0])
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#define PPP_CONTROL(p) (((u_char *)(p))[1])
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#define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3])
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/*
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* Significant octet values.
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*/
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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_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_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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* What to do with network protocol (NP) packets.
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* Bit definitions for flags.
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*/
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enum NPmode {
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NPMODE_PASS, /* pass the packet through */
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NPMODE_DROP, /* silently drop the packet */
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NPMODE_ERROR, /* return an error */
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NPMODE_QUEUE /* save it up for later. */
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};
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/*
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* Supported network protocols. These values are used for
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* indexing sc_npmode.
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*/
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#define NP_IP 0 /* Internet Protocol */
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#define NUM_NP 1 /* Number of NPs. */
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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-dep structure */
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int (*sc_start)(); /* start routine */
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short sc_mru; /* max receive unit */
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pid_t sc_xfer; /* used in transferring unit */
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struct ifqueue sc_inq; /* TTY side input queue */
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struct ifqueue sc_fastq; /* IP interactive output packet q */
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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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enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
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struct compressor *sc_xcomp; /* transmit compressor */
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void *sc_xc_state; /* transmit compressor state */
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struct compressor *sc_rcomp; /* receive decompressor */
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void *sc_rc_state; /* receive decompressor state */
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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 currently being output */
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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; /* ptr 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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@ -176,7 +76,14 @@ struct ppp_option_data {
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int transmit;
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};
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/* this stuff doesn't belong here... */
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struct ifpppstatsreq {
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char ifr_name[IFNAMSIZ];
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struct ppp_stats stats;
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};
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/*
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* Ioctl definitions.
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*/
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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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@ -194,12 +101,10 @@ struct ppp_option_data {
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#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */
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#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */
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#ifdef ultrix
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#define ifr_mtu ifr_ifru.ifru_metric
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#endif
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#define SIOCGPPPSTATS _IOWR('i', 123, struct ifpppstatsreq)
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#if !defined(ifr_mtu)
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#define ifr_mtu ifr_metric
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#define ifr_mtu ifr_ifru.ifru_metric
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#endif
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#endif /* _IF_PPP_H_ */
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