xref: /freebsd/usr.sbin/ppp/link.h (revision 8c07a7b2e0d7046e042a0c38fb62f75013bcf072)
18c07a7b2SBrian Somers /*-
28c07a7b2SBrian Somers  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
38c07a7b2SBrian Somers  * All rights reserved.
48c07a7b2SBrian Somers  *
58c07a7b2SBrian Somers  * Redistribution and use in source and binary forms, with or without
68c07a7b2SBrian Somers  * modification, are permitted provided that the following conditions
78c07a7b2SBrian Somers  * are met:
88c07a7b2SBrian Somers  * 1. Redistributions of source code must retain the above copyright
98c07a7b2SBrian Somers  *    notice, this list of conditions and the following disclaimer.
108c07a7b2SBrian Somers  * 2. Redistributions in binary form must reproduce the above copyright
118c07a7b2SBrian Somers  *    notice, this list of conditions and the following disclaimer in the
128c07a7b2SBrian Somers  *    documentation and/or other materials provided with the distribution.
138c07a7b2SBrian Somers  *
148c07a7b2SBrian Somers  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
158c07a7b2SBrian Somers  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
168c07a7b2SBrian Somers  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
178c07a7b2SBrian Somers  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
188c07a7b2SBrian Somers  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
198c07a7b2SBrian Somers  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
208c07a7b2SBrian Somers  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
218c07a7b2SBrian Somers  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
228c07a7b2SBrian Somers  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
238c07a7b2SBrian Somers  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
248c07a7b2SBrian Somers  * SUCH DAMAGE.
258c07a7b2SBrian Somers  *
268c07a7b2SBrian Somers  *  $Id$
278c07a7b2SBrian Somers  *
288c07a7b2SBrian Somers  */
298c07a7b2SBrian Somers 
308c07a7b2SBrian Somers 
318c07a7b2SBrian Somers #define PHYSICAL_LINK 1
328c07a7b2SBrian Somers #define MP_LINK       2
338c07a7b2SBrian Somers 
348c07a7b2SBrian Somers #define LINK_QUEUES (PRI_MAX + 1)
358c07a7b2SBrian Somers #define NPROTOSTAT 11
368c07a7b2SBrian Somers 
378c07a7b2SBrian Somers struct link {
388c07a7b2SBrian Somers   int type;                               /* _LINK type */
398c07a7b2SBrian Somers   const char *name;                       /* unique id per link type */
408c07a7b2SBrian Somers   int len;                                /* full size of parent struct */
418c07a7b2SBrian Somers   struct pppThroughput throughput;        /* Link throughput statistics */
428c07a7b2SBrian Somers   struct pppTimer Timer;                  /* inactivity timeout */
438c07a7b2SBrian Somers   struct mqueue Queue[LINK_QUEUES];       /* Our output queue of mbufs */
448c07a7b2SBrian Somers 
458c07a7b2SBrian Somers   u_long proto_in[NPROTOSTAT];            /* outgoing protocol stats */
468c07a7b2SBrian Somers   u_long proto_out[NPROTOSTAT];           /* incoming protocol stats */
478c07a7b2SBrian Somers 
488c07a7b2SBrian Somers   /* Implementation routines for use by link_ routines */
498c07a7b2SBrian Somers   void (*StartOutput)(struct link *);     /* send the queued data */
508c07a7b2SBrian Somers   int (*IsActive)(struct link *);         /* Are we active ? */
518c07a7b2SBrian Somers   void (*Close)(struct link *, int);      /* Close the link */
528c07a7b2SBrian Somers };
538c07a7b2SBrian Somers 
548c07a7b2SBrian Somers extern void link_AddInOctets(struct link *, int);
558c07a7b2SBrian Somers extern void link_AddOutOctets(struct link *, int);
568c07a7b2SBrian Somers 
578c07a7b2SBrian Somers extern void link_SequenceQueue(struct link *);
588c07a7b2SBrian Somers extern int link_QueueLen(struct link *);
598c07a7b2SBrian Somers extern struct mbuf *link_Dequeue(struct link *);
608c07a7b2SBrian Somers extern void link_Write(struct link *, int, const char *, int);
618c07a7b2SBrian Somers extern void link_StartOutput(struct link *);
628c07a7b2SBrian Somers extern void link_Output(struct link *, int, struct mbuf *);
638c07a7b2SBrian Somers 
648c07a7b2SBrian Somers #define PROTO_IN  1                       /* third arg to link_ProtocolRecord */
658c07a7b2SBrian Somers #define PROTO_OUT 2
668c07a7b2SBrian Somers extern void link_ProtocolRecord(struct link *, u_short, int);
678c07a7b2SBrian Somers extern void link_ReportProtocolStatus(struct link *);
688c07a7b2SBrian Somers 
698c07a7b2SBrian Somers extern int link_IsActive(struct link *);
708c07a7b2SBrian Somers extern void link_Close(struct link *, int);
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