1 /*- 2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 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. 13 * 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. 25 * 26 * $Id: link.h,v 1.5 1999/05/08 11:07:00 brian Exp $ 27 * 28 */ 29 30 31 #define PHYSICAL_LINK 1 32 #define LOGICAL_LINK 2 33 34 #define LINK_QUEUES (PRI_MAX + 1) 35 #define NPROTOSTAT 13 36 37 struct bundle; 38 struct prompt; 39 struct cmdargs; 40 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 pppThroughput throughput; /* Link throughput statistics */ 46 struct mqueue Queue[LINK_QUEUES]; /* Our output queue of mbufs */ 47 48 u_long proto_in[NPROTOSTAT]; /* outgoing protocol stats */ 49 u_long proto_out[NPROTOSTAT]; /* incoming protocol stats */ 50 51 struct lcp lcp; /* Our line control FSM */ 52 struct ccp ccp; /* Our compression FSM */ 53 54 struct layer const *layer[LAYER_MAX]; /* i/o layers */ 55 int nlayers; 56 }; 57 58 extern void link_AddInOctets(struct link *, int); 59 extern void link_AddOutOctets(struct link *, int); 60 61 extern void link_SequenceQueue(struct link *); 62 extern void link_DeleteQueue(struct link *); 63 extern int link_QueueLen(struct link *); 64 extern int link_QueueBytes(struct link *); 65 extern struct mbuf *link_Dequeue(struct link *); 66 67 extern void link_PushPacket(struct link *, struct mbuf *, struct bundle *, 68 int, u_short); 69 extern void link_PullPacket(struct link *, char *, size_t, struct bundle *); 70 extern int link_Stack(struct link *, struct layer *); 71 extern void link_EmptyStack(struct link *); 72 73 #define PROTO_IN 1 /* third arg to link_ProtocolRecord */ 74 #define PROTO_OUT 2 75 extern void link_ProtocolRecord(struct link *, u_short, int); 76 extern void link_ReportProtocolStatus(struct link *, struct prompt *); 77 extern int link_ShowLayers(struct cmdargs const *); 78