freebsd-dev/usr.sbin/ppp/link.h
Brian Somers 8c07a7b2e0 Create `struct link' - the logical link from which
`struct physical' (and the future `struct logical')
are derived.
1998-01-30 19:46:07 +00:00

71 lines
3.0 KiB
C

/*-
* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*
*/
#define PHYSICAL_LINK 1
#define MP_LINK 2
#define LINK_QUEUES (PRI_MAX + 1)
#define NPROTOSTAT 11
struct link {
int type; /* _LINK type */
const char *name; /* unique id per link type */
int len; /* full size of parent struct */
struct pppThroughput throughput; /* Link throughput statistics */
struct pppTimer Timer; /* inactivity timeout */
struct mqueue Queue[LINK_QUEUES]; /* Our output queue of mbufs */
u_long proto_in[NPROTOSTAT]; /* outgoing protocol stats */
u_long proto_out[NPROTOSTAT]; /* incoming protocol stats */
/* Implementation routines for use by link_ routines */
void (*StartOutput)(struct link *); /* send the queued data */
int (*IsActive)(struct link *); /* Are we active ? */
void (*Close)(struct link *, int); /* Close the link */
};
extern void link_AddInOctets(struct link *, int);
extern void link_AddOutOctets(struct link *, int);
extern void link_SequenceQueue(struct link *);
extern int link_QueueLen(struct link *);
extern struct mbuf *link_Dequeue(struct link *);
extern void link_Write(struct link *, int, const char *, int);
extern void link_StartOutput(struct link *);
extern void link_Output(struct link *, int, struct mbuf *);
#define PROTO_IN 1 /* third arg to link_ProtocolRecord */
#define PROTO_OUT 2
extern void link_ProtocolRecord(struct link *, u_short, int);
extern void link_ReportProtocolStatus(struct link *);
extern int link_IsActive(struct link *);
extern void link_Close(struct link *, int);