netbsd-1.2/if_pppvar.h

   1 /*      $NetBSD: if_pppvar.h,v 1.8 1998/02/09 17:43:52 perry Exp $      */
   2 /*      Id: if_pppvar.h,v 1.3 1996/07/01 01:04:37 paulus Exp     */
   3
   4 /*
   5  * if_pppvar.h - private structures and declarations for PPP.
   6  *
   7  * Copyright (c) 1994 Paul Mackerras. All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. The name(s) of the authors of this software must not be used to
  22  *    endorse or promote products derived from this software without
  23  *    prior written permission.
  24  *
  25  * 4. Redistributions of any form whatsoever must retain the following
  26  *    acknowledgment:
  27  *    "This product includes software developed by Paul Mackerras
  28  *     <paulus@samba.org>".
  29  *
  30  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
  31  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  32  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  33  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  34  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  35  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  36  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  37  *
  38  * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  * 1. Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *
  47  * 2. Redistributions in binary form must reproduce the above copyright
  48  *    notice, this list of conditions and the following disclaimer in
  49  *    the documentation and/or other materials provided with the
  50  *    distribution.
  51  *
  52  * 3. The name "Carnegie Mellon University" must not be used to
  53  *    endorse or promote products derived from this software without
  54  *    prior written permission. For permission or any legal
  55  *    details, please contact
  56  *      Office of Technology Transfer
  57  *      Carnegie Mellon University
  58  *      5000 Forbes Avenue
  59  *      Pittsburgh, PA  15213-3890
  60  *      (412) 268-4387, fax: (412) 268-7395
  61  *      tech-transfer@andrew.cmu.edu
  62  *
  63  * 4. Redistributions of any form whatsoever must retain the following
  64  *    acknowledgment:
  65  *    "This product includes software developed by Computing Services
  66  *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
  67  *
  68  * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
  69  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  70  * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
  71  * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  72  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  73  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  74  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  75  */
  76
  77 #ifndef _NET_IF_PPPVAR_H_
  78 #define _NET_IF_PPPVAR_H_
  79
  80 /*
  81  * Supported network protocols.  These values are used for
  82  * indexing sc_npmode.
  83  */
  84 #define NP_IP   0               /* Internet Protocol */
  85 #define NUM_NP  1               /* Number of NPs. */
  86
  87 /*
  88  * Structure describing each ppp unit.
  89  */
  90 struct ppp_softc {
  91         struct  ifnet sc_if;            /* network-visible interface */
  92         int     sc_unit;                /* XXX unit number */
  93         u_int   sc_flags;               /* control/status bits; see if_ppp.h */
  94         void    *sc_devp;               /* pointer to device-dep structure */
  95         void    (*sc_start) __P((struct ppp_softc *));  /* start output proc */
  96         void    (*sc_ctlp) __P((struct ppp_softc *)); /* rcvd control pkt */
  97         void    (*sc_relinq) __P((struct ppp_softc *)); /* relinquish ifunit */
  98         u_int16_t sc_mru;               /* max receive unit */
  99         pid_t   sc_xfer;                /* used in transferring unit */
 100         struct  ifqueue sc_rawq;        /* received packets */
 101         struct  ifqueue sc_inq;         /* queue of input packets for daemon */
 102         struct  ifqueue sc_fastq;       /* interactive output packet q */
 103         struct  mbuf *sc_togo;          /* output packet ready to go */
 104         struct  mbuf *sc_npqueue;       /* output packets not to be sent yet */
 105         struct  mbuf **sc_npqtail;      /* ptr to last next ptr in npqueue */
 106         struct  pppstat sc_stats;       /* count of bytes/pkts sent/rcvd */
 107         caddr_t sc_bpf;                 /* hook for BPF */
 108         enum    NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
 109         struct  compressor *sc_xcomp;   /* transmit compressor */
 110         void    *sc_xc_state;           /* transmit compressor state */
 111         struct  compressor *sc_rcomp;   /* receive decompressor */
 112         void    *sc_rc_state;           /* receive decompressor state */
 113         time_t  sc_last_sent;           /* time (secs) last NP pkt sent */
 114         time_t  sc_last_recv;           /* time (secs) last NP pkt rcvd */
 115 #ifdef PPP_FILTER
 116         struct  bpf_program sc_pass_filt;   /* filter for packets to pass */
 117         struct  bpf_program sc_active_filt; /* filter for "non-idle" packets */
 118 #endif /* PPP_FILTER */
 119 #ifdef  VJC
 120         struct  slcompress *sc_comp;    /* vjc control buffer */
 121 #endif
 122
 123         /* Device-dependent part for async lines. */
 124         ext_accm sc_asyncmap;           /* async control character map */
 125         u_int32_t sc_rasyncmap;         /* receive async control char map */
 126         struct  mbuf *sc_outm;          /* mbuf chain currently being output */
 127         struct  mbuf *sc_m;             /* pointer to input mbuf chain */
 128         struct  mbuf *sc_mc;            /* pointer to current input mbuf */
 129         char    *sc_mp;                 /* ptr to next char in input mbuf */
 130         u_int16_t sc_ilen;              /* length of input packet so far */
 131         u_int16_t sc_fcs;               /* FCS so far (input) */
 132         u_int16_t sc_outfcs;            /* FCS so far for output packet */
 133         u_char  sc_rawin[16];           /* chars as received */
 134         int     sc_rawin_count;         /* # in sc_rawin */
 135 };
 136
 137 #ifdef _KERNEL
 138 struct  ppp_softc ppp_softc[NPPP];
 139
 140 struct  ppp_softc *pppalloc __P((pid_t pid));
 141 void    pppdealloc __P((struct ppp_softc *sc));
 142 int     pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data,
 143                       int flag, struct proc *p));
 144 void    ppp_restart __P((struct ppp_softc *sc));
 145 void    ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int lost));
 146 struct  mbuf *ppp_dequeue __P((struct ppp_softc *sc));
 147 int     pppoutput __P((struct ifnet *, struct mbuf *,
 148                        struct sockaddr *, struct rtentry *));
 149 #endif /* _KERNEL */
 150
 151 #endif /* _NET_IF_PPPVAR_H_ */