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Annotation of sys/net/if_pppvar.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: if_pppvar.h,v 1.15 2003/12/07 15:41:27 markus Exp $   */
                      2: /*     $NetBSD: if_pppvar.h,v 1.5 1997/01/03 07:23:29 mikel Exp $      */
                      3: /*
                      4:  * if_pppvar.h - private structures and declarations for PPP.
                      5:  *
                      6:  * Copyright (c) 1989-2002 Paul Mackerras. All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  *
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  *
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in
                     17:  *    the documentation and/or other materials provided with the
                     18:  *    distribution.
                     19:  *
                     20:  * 3. The name(s) of the authors of this software must not be used to
                     21:  *    endorse or promote products derived from this software without
                     22:  *    prior written permission.
                     23:  *
                     24:  * 4. Redistributions of any form whatsoever must retain the following
                     25:  *    acknowledgment:
                     26:  *    "This product includes software developed by Paul Mackerras
                     27:  *     <paulus@samba.org>".
                     28:  *
                     29:  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
                     30:  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
                     31:  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
                     32:  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     33:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
                     34:  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     35:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     36:  *
                     37:  * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
                     38:  *
                     39:  * Redistribution and use in source and binary forms, with or without
                     40:  * modification, are permitted provided that the following conditions
                     41:  * are met:
                     42:  *
                     43:  * 1. Redistributions of source code must retain the above copyright
                     44:  *    notice, this list of conditions and the following disclaimer.
                     45:  *
                     46:  * 2. Redistributions in binary form must reproduce the above copyright
                     47:  *    notice, this list of conditions and the following disclaimer in
                     48:  *    the documentation and/or other materials provided with the
                     49:  *    distribution.
                     50:  *
                     51:  * 3. The name "Carnegie Mellon University" must not be used to
                     52:  *    endorse or promote products derived from this software without
                     53:  *    prior written permission. For permission or any legal
                     54:  *    details, please contact
                     55:  *      Office of Technology Transfer
                     56:  *      Carnegie Mellon University
                     57:  *      5000 Forbes Avenue
                     58:  *      Pittsburgh, PA  15213-3890
                     59:  *      (412) 268-4387, fax: (412) 268-7395
                     60:  *      tech-transfer@andrew.cmu.edu
                     61:  *
                     62:  * 4. Redistributions of any form whatsoever must retain the following
                     63:  *    acknowledgment:
                     64:  *    "This product includes software developed by Computing Services
                     65:  *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
                     66:  *
                     67:  * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
                     68:  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
                     69:  * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
                     70:  * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     71:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
                     72:  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     73:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     74:  */
                     75:
                     76: #ifndef _NET_IF_PPPVAR_H_
                     77: #define _NET_IF_PPPVAR_H_
                     78:
                     79: /*
                     80:  * Supported network protocols.  These values are used for
                     81:  * indexing sc_npmode.
                     82:  */
                     83: #define NP_IP  0               /* Internet Protocol */
                     84: #define NUM_NP 1               /* Number of NPs. */
                     85:
                     86: /*
                     87:  * Structure describing each ppp unit.
                     88:  */
                     89: struct ppp_softc {
                     90:        struct  ifnet sc_if;            /* network-visible interface */
                     91:        struct  timeout sc_timo;        /* timeout control (for ptys) */
                     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)(struct ppp_softc *); /* start output proc */
                     96:        void    (*sc_ctlp)(struct ppp_softc *); /* rcvd control pkt */
                     97:        void    (*sc_relinq)(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:        struct  bpf_program sc_pass_filt; /* filter for packets to pass */
                    116:        struct  bpf_program sc_active_filt; /* filter for "non-idle" packets */
                    117: #ifdef VJC
                    118:        struct  slcompress *sc_comp;    /* vjc control buffer */
                    119: #endif
                    120:
                    121:        /* Device-dependent part for async lines. */
                    122:        ext_accm sc_asyncmap;           /* async control character map */
                    123:        u_int32_t sc_rasyncmap;         /* receive async control char map */
                    124:        struct  mbuf *sc_outm;          /* mbuf chain currently being output */
                    125:        struct  mbuf *sc_m;             /* pointer to input mbuf chain */
                    126:        struct  mbuf *sc_mc;            /* pointer to current input mbuf */
                    127:        char    *sc_mp;                 /* ptr to next char in input mbuf */
                    128:        u_int16_t sc_ilen;              /* length of input packet so far */
                    129:        u_int16_t sc_fcs;               /* FCS so far (input) */
                    130:        u_int16_t sc_outfcs;            /* FCS so far for output packet */
                    131:        u_char  sc_rawin[16];           /* chars as received */
                    132:        int     sc_rawin_count;         /* # in sc_rawin */
                    133:        LIST_ENTRY(ppp_softc) sc_list;  /* all ppp interfaces */
                    134: };
                    135:
                    136: #ifdef _KERNEL
                    137: extern struct ppp_softc ppp_softc[];
                    138:
                    139: struct ppp_softc *pppalloc(pid_t pid);
                    140: void   pppdealloc(struct ppp_softc *sc);
                    141: int    pppioctl(struct ppp_softc *sc, u_long cmd, caddr_t data,
                    142:                      int flag, struct proc *p);
                    143: void   ppppktin(struct ppp_softc *sc, struct mbuf *m, int lost);
                    144: struct mbuf *ppp_dequeue(struct ppp_softc *sc);
                    145: void   ppp_restart(struct ppp_softc *sc);
                    146: int    pppoutput(struct ifnet *, struct mbuf *,
                    147:                       struct sockaddr *, struct rtentry *);
                    148: #endif /* _KERNEL */
                    149: #endif /* _NET_IF_PPPVAR_H_ */

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