Add unifdef(1) to the bootstrap-tools.
[dragonfly.git] / usr.sbin / ppp / link.h
blobd27e0c78168cc0360bc7ab2e68fc66248e835e67
1 /*-
2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
26 * $FreeBSD: src/usr.sbin/ppp/link.h,v 1.9.2.1 2000/08/19 09:30:04 brian Exp $
27 * $DragonFly: src/usr.sbin/ppp/link.h,v 1.2 2003/06/17 04:30:00 dillon Exp $
32 #define PHYSICAL_LINK 1
33 #define LOGICAL_LINK 2
35 #define NPROTOSTAT 13
37 struct bundle;
38 struct prompt;
39 struct cmdargs;
41 struct link {
42 int type; /* _LINK type */
43 const char *name; /* Points to datalink::name */
44 int len; /* full size of parent struct */
45 struct {
46 unsigned gather : 1; /* Gather statistics ourself ? */
47 struct pppThroughput total; /* Link throughput statistics */
48 struct pppThroughput *parent; /* MP link throughput statistics */
49 } stats;
50 struct mqueue Queue[2]; /* Our output queue of mbufs */
52 u_long proto_in[NPROTOSTAT]; /* outgoing protocol stats */
53 u_long proto_out[NPROTOSTAT]; /* incoming protocol stats */
55 struct lcp lcp; /* Our line control FSM */
56 struct ccp ccp; /* Our compression FSM */
58 struct layer const *layer[LAYER_MAX]; /* i/o layers */
59 int nlayers;
62 #define LINK_QUEUES(link) (sizeof (link)->Queue / sizeof (link)->Queue[0])
63 #define LINK_HIGHQ(link) ((link)->Queue + LINK_QUEUES(link) - 1)
65 extern void link_SequenceQueue(struct link *);
66 extern void link_DeleteQueue(struct link *);
67 extern size_t link_QueueLen(struct link *);
68 extern size_t link_QueueBytes(struct link *);
69 extern struct mbuf *link_Dequeue(struct link *);
71 extern void link_PushPacket(struct link *, struct mbuf *, struct bundle *,
72 int, u_short);
73 extern void link_PullPacket(struct link *, char *, size_t, struct bundle *);
74 extern int link_Stack(struct link *, struct layer *);
75 extern void link_EmptyStack(struct link *);
77 #define PROTO_IN 1 /* third arg to link_ProtocolRecord */
78 #define PROTO_OUT 2
79 extern void link_ProtocolRecord(struct link *, u_short, int);
80 extern void link_ReportProtocolStatus(struct link *, struct prompt *);
81 extern int link_ShowLayers(struct cmdargs const *);